tboudreaux/GridFire
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
a0dcfe43326464b2dadae0f3935be2769d421001
GridFire/docs/html/classgridfire_1_1screening_1_1WeakScreeningModel.html

451 lines
28 KiB
HTML
Raw Normal View History

docs(docs): rebuilt for version v0.7.1_rc2
2025-11-28 09:46:00 -05:00
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en-US">
<head>
<meta http-equiv="Content-Type" content="text/xhtml;charset=UTF-8"/>
<meta http-equiv="X-UA-Compatible" content="IE=11"/>
<meta name="generator" content="Doxygen 1.9.8"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<title>GridFire: gridfire::screening::WeakScreeningModel Class Reference</title>
<link href="tabs.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript" src="dynsections.js"></script>
<link href="navtree.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="resize.js"></script>
<script type="text/javascript" src="navtreedata.js"></script>
<script type="text/javascript" src="navtree.js"></script>
<link href="search/search.css" rel="stylesheet" type="text/css"/>
<script type="text/javascript" src="search/searchdata.js"></script>
<script type="text/javascript" src="search/search.js"></script>
<link href="doxygen.css" rel="stylesheet" type="text/css" />
<link href="doxygen-awesome.css" rel="stylesheet" type="text/css"/>
<link href="doxygen-awesome-sidebar-only.css" rel="stylesheet" type="text/css"/>
</head>
<body>
<div id="top"><!-- do not remove this div, it is closed by doxygen! -->
<div id="titlearea">
<table cellspacing="0" cellpadding="0">
<tbody>
<tr id="projectrow">
<td id="projectalign">
<div id="projectname">GridFire<span id="projectnumber">&#160;v0.7.1_rc2</span>
</div>
<div id="projectbrief">General Purpose Nuclear Network</div>
</td>
</tr>
</tbody>
</table>
</div>
<!-- end header part -->
<!-- Generated by Doxygen 1.9.8 -->
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
var searchBox = new SearchBox("searchBox", "search/",'.html');
/* @license-end */
</script>
<script type="text/javascript" src="menudata.js"></script>
<script type="text/javascript" src="menu.js"></script>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(function() {
initMenu('',true,false,'search.php','Search');
$(document).ready(function() { init_search(); });
});
/* @license-end */
</script>
<div id="main-nav"></div>
</div><!-- top -->
<div id="side-nav" class="ui-resizable side-nav-resizable">
<div id="nav-tree">
<div id="nav-tree-contents">
<div id="nav-sync" class="sync"></div>
</div>
</div>
<div id="splitbar" style="-moz-user-select:none;"
class="ui-resizable-handle">
</div>
</div>
<script type="text/javascript">
/* @license magnet:?xt=urn:btih:d3d9a9a6595521f9666a5e94cc830dab83b65699&amp;dn=expat.txt MIT */
$(document).ready(function(){initNavTree('classgridfire_1_1screening_1_1WeakScreeningModel.html',''); initResizable(); });
/* @license-end */
</script>
<div id="doc-content">
<!-- window showing the filter options -->
<div id="MSearchSelectWindow"
onmouseover="return searchBox.OnSearchSelectShow()"
onmouseout="return searchBox.OnSearchSelectHide()"
onkeydown="return searchBox.OnSearchSelectKey(event)">
</div>
<!-- iframe showing the search results (closed by default) -->
<div id="MSearchResultsWindow">
<div id="MSearchResults">
<div class="SRPage">
<div id="SRIndex">
<div id="SRResults"></div>
<div class="SRStatus" id="Loading">Loading...</div>
<div class="SRStatus" id="Searching">Searching...</div>
<div class="SRStatus" id="NoMatches">No Matches</div>
</div>
</div>
</div>
</div>
<div class="header">
<div class="summary">
<a href="#pub-methods">Public Member Functions</a> &#124;
<a href="#pri-methods">Private Member Functions</a> &#124;
<a href="#pri-attribs">Private Attributes</a> &#124;
<a href="classgridfire_1_1screening_1_1WeakScreeningModel-members.html">List of all members</a> </div>
<div class="headertitle"><div class="title">gridfire::screening::WeakScreeningModel Class Reference<span class="mlabels"><span class="mlabel">final</span></span></div></div>
</div><!--header-->
<div class="contents">
<p>Implements the weak screening model based on the Debye-Hückel approximation.
<a href="classgridfire_1_1screening_1_1WeakScreeningModel.html#details">More...</a></p>
<p><code>#include &lt;screening_weak.h&gt;</code></p>
<div class="dynheader">
Inheritance diagram for gridfire::screening::WeakScreeningModel:</div>
<div class="dyncontent">
<div class="center"><iframe scrolling="no" frameborder="0" src="classgridfire_1_1screening_1_1WeakScreeningModel__inherit__graph.svg" width="182" height="139"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<div class="dynheader">
Collaboration diagram for gridfire::screening::WeakScreeningModel:</div>
<div class="dyncontent">
<div class="center"><iframe scrolling="no" frameborder="0" src="classgridfire_1_1screening_1_1WeakScreeningModel__coll__graph.svg" width="182" height="139"><p><b>This browser is not able to show SVG: try Firefox, Chrome, Safari, or Opera instead.</b></p></iframe></div>
<center><span class="legend">[<a target="top" href="graph_legend.html">legend</a>]</span></center></div>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pub-methods" name="pub-methods"></a>
Public Member Functions</h2></td></tr>
<tr class="memitem:a6a215d082b0d05126fb2b19fd1983446" id="r_a6a215d082b0d05126fb2b19fd1983446"><td class="memItemLeft" align="right" valign="top">std::vector&lt; double &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1WeakScreeningModel.html#a6a215d082b0d05126fb2b19fd1983446">calculateScreeningFactors</a> (const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;reactions, const std::vector&lt; fourdst::atomic::Species &gt; &amp;species, const std::vector&lt; double &gt; &amp;Y, double T9, double rho) const override</td></tr>
<tr class="memdesc:a6a215d082b0d05126fb2b19fd1983446"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates weak screening factors for a set of reactions. <br /></td></tr>
<tr class="separator:a6a215d082b0d05126fb2b19fd1983446"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="memitem:a8b0590814e7058b4ff3f0cd6f4124773" id="r_a8b0590814e7058b4ff3f0cd6f4124773"><td class="memItemLeft" align="right" valign="top">std::vector&lt; CppAD::AD&lt; double &gt; &gt;&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1WeakScreeningModel.html#a8b0590814e7058b4ff3f0cd6f4124773">calculateScreeningFactors</a> (const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;reactions, const std::vector&lt; fourdst::atomic::Species &gt; &amp;species, const std::vector&lt; CppAD::AD&lt; double &gt; &gt; &amp;Y, CppAD::AD&lt; double &gt; T9, CppAD::AD&lt; double &gt; rho) const override</td></tr>
<tr class="memdesc:a8b0590814e7058b4ff3f0cd6f4124773"><td class="mdescLeft">&#160;</td><td class="mdescRight">Calculates weak screening factors using CppAD types. <br /></td></tr>
<tr class="separator:a8b0590814e7058b4ff3f0cd6f4124773"><td class="memSeparator" colspan="2">&#160;</td></tr>
<tr class="inherit_header pub_methods_classgridfire_1_1screening_1_1ScreeningModel"><td colspan="2" onclick="javascript:toggleInherit('pub_methods_classgridfire_1_1screening_1_1ScreeningModel')"><img src="closed.png" alt="-"/>&#160;Public Member Functions inherited from <a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html">gridfire::screening::ScreeningModel</a></td></tr>
<tr class="memitem:adef175acdbd911527f56a1f1592579a7 inherit pub_methods_classgridfire_1_1screening_1_1ScreeningModel" id="r_adef175acdbd911527f56a1f1592579a7"><td class="memItemLeft" align="right" valign="top">virtual&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html#adef175acdbd911527f56a1f1592579a7">~ScreeningModel</a> ()=default</td></tr>
<tr class="memdesc:adef175acdbd911527f56a1f1592579a7 inherit pub_methods_classgridfire_1_1screening_1_1ScreeningModel"><td class="mdescLeft">&#160;</td><td class="mdescRight">Virtual destructor. <br /></td></tr>
<tr class="separator:adef175acdbd911527f56a1f1592579a7 inherit pub_methods_classgridfire_1_1screening_1_1ScreeningModel"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pri-methods" name="pri-methods"></a>
Private Member Functions</h2></td></tr>
<tr class="memitem:aa9f95ba8c052dacb72295775516b7e5f" id="r_aa9f95ba8c052dacb72295775516b7e5f"><td class="memTemplParams" colspan="2">template&lt;IsArithmeticOrAD T&gt; </td></tr>
<tr class="memitem:aa9f95ba8c052dacb72295775516b7e5f"><td class="memTemplItemLeft" align="right" valign="top">std::vector&lt; T &gt;&#160;</td><td class="memTemplItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1WeakScreeningModel.html#aa9f95ba8c052dacb72295775516b7e5f">calculateFactors_impl</a> (const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;reactions, const std::vector&lt; fourdst::atomic::Species &gt; &amp;species, const std::vector&lt; T &gt; &amp;Y, T T9, T rho) const</td></tr>
<tr class="memdesc:aa9f95ba8c052dacb72295775516b7e5f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Template implementation for calculating weak screening factors. <br /></td></tr>
<tr class="separator:aa9f95ba8c052dacb72295775516b7e5f"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="pri-attribs" name="pri-attribs"></a>
Private Attributes</h2></td></tr>
<tr class="memitem:a0a4d7d6d36dbe7b764b613d34f18386f" id="r_a0a4d7d6d36dbe7b764b613d34f18386f"><td class="memItemLeft" align="right" valign="top">quill::Logger *&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1WeakScreeningModel.html#a0a4d7d6d36dbe7b764b613d34f18386f">m_logger</a> = fourdst::logging::LogManager::getInstance().getLogger(&quot;log&quot;)</td></tr>
<tr class="memdesc:a0a4d7d6d36dbe7b764b613d34f18386f"><td class="mdescLeft">&#160;</td><td class="mdescRight">Logger instance for recording trace and debug information. <br /></td></tr>
<tr class="separator:a0a4d7d6d36dbe7b764b613d34f18386f"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table><table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a id="inherited" name="inherited"></a>
Additional Inherited Members</h2></td></tr>
<tr class="inherit_header pub_types_classgridfire_1_1screening_1_1ScreeningModel"><td colspan="2" onclick="javascript:toggleInherit('pub_types_classgridfire_1_1screening_1_1ScreeningModel')"><img src="closed.png" alt="-"/>&#160;Public Types inherited from <a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html">gridfire::screening::ScreeningModel</a></td></tr>
<tr class="memitem:a107ff2897f040d6f27f69d56a0bdd28d inherit pub_types_classgridfire_1_1screening_1_1ScreeningModel" id="r_a107ff2897f040d6f27f69d56a0bdd28d"><td class="memItemLeft" align="right" valign="top">using&#160;</td><td class="memItemRight" valign="bottom"><a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html#a107ff2897f040d6f27f69d56a0bdd28d">ADDouble</a> = CppAD::AD&lt; double &gt;</td></tr>
<tr class="memdesc:a107ff2897f040d6f27f69d56a0bdd28d inherit pub_types_classgridfire_1_1screening_1_1ScreeningModel"><td class="mdescLeft">&#160;</td><td class="mdescRight">Alias for CppAD Automatic Differentiation type for double precision. <br /></td></tr>
<tr class="separator:a107ff2897f040d6f27f69d56a0bdd28d inherit pub_types_classgridfire_1_1screening_1_1ScreeningModel"><td class="memSeparator" colspan="2">&#160;</td></tr>
</table>
<a name="details" id="details"></a><h2 class="groupheader">Detailed Description</h2>
<div class="textblock"><p>Implements the weak screening model based on the Debye-Hückel approximation. </p>
<p>This class provides a concrete implementation of the <code><a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html" title="An abstract base class for plasma screening models.">ScreeningModel</a></code> interface for the weak screening regime, following the formulation of Salpeter (1954). This approach applies the Debye-Hückel theory to model the electrostatic shielding of nuclei in a plasma. It is applicable to non-degenerate, non-relativistic plasmas where thermal energy dominates the electrostatic potential energy. </p>
</div><h2 class="groupheader">Member Function Documentation</h2>
<a id="aa9f95ba8c052dacb72295775516b7e5f" name="aa9f95ba8c052dacb72295775516b7e5f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#aa9f95ba8c052dacb72295775516b7e5f">&#9670;&#160;</a></span>calculateFactors_impl()</h2>
<div class="memitem">
<div class="memproto">
<div class="memtemplate">
template&lt;IsArithmeticOrAD T&gt; </div>
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">std::vector&lt; T &gt; gridfire::screening::WeakScreeningModel::calculateFactors_impl </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;&#160;</td>
<td class="paramname"><em>reactions</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; fourdst::atomic::Species &gt; &amp;&#160;</td>
<td class="paramname"><em>species</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; T &gt; &amp;&#160;</td>
<td class="paramname"><em>Y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">T&#160;</td>
<td class="paramname"><em>T9</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">T&#160;</td>
<td class="paramname"><em>rho</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">private</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Template implementation for calculating weak screening factors. </p>
<p>Core implementation of the weak screening calculation (Debye-Hückel model).</p>
<p>This private helper function contains the core logic for calculating weak screening factors. It is templated to handle both <code>double</code> and <code>CppAD::AD&lt;double&gt;</code> numeric types, avoiding code duplication.</p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>The numeric type, either <code>double</code> or <code>CppAD::AD&lt;double&gt;</code>. </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">reactions</td><td>The set of reactions. </td></tr>
<tr><td class="paramname">species</td><td>A vector of all species in the network. </td></tr>
<tr><td class="paramname">Y</td><td>The composition object with current molar abundances. </td></tr>
<tr><td class="paramname">T9</td><td>The temperature in 10^9 K. </td></tr>
<tr><td class="paramname">rho</td><td>The density in g/cm^3. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A vector of screening factors of type <code>T</code>.</dd></dl>
<p>This function calculates the screening factor <code>exp(H_12)</code> for each reaction, based on the Debye-Hückel approximation as formulated by Salpeter (1954).</p>
<dl class="tparams"><dt>Template Parameters</dt><dd>
<table class="tparams">
<tr><td class="paramname">T</td><td>The numeric type (<code>double</code> or <code>CppAD::AD&lt;double&gt;</code>). </td></tr>
</table>
</dd>
</dl>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">reactions</td><td>The set of reactions to be screened. </td></tr>
<tr><td class="paramname">species</td><td>The list of all species in the network. </td></tr>
<tr><td class="paramname">Y</td><td>The composition object providing current molar abundances. </td></tr>
<tr><td class="paramname">T9</td><td>The temperature in 10^9 K. </td></tr>
<tr><td class="paramname">rho</td><td>The density in g/cm^3. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A vector of screening factors, one for each reaction.</dd></dl>
<p><b>Algorithm</b> </p><ol type="1">
<li><b>Low-Temperature Cutoff</b>: If T9 is below a small threshold (1e-9), screening is effectively turned off to prevent numerical instability.</li>
<li><b>Zeta Factor (ζ)</b>: A composition-dependent term is calculated: <code>ζ = ∑(Z_i² + Z_i) * Y_i</code>, where Z_i is the charge and Y_i is the molar abundance of species i.</li>
<li><b>Prefactor</b>: A key prefactor is computed: <code>prefactor = 0.188 * sqrt(ρ / T₇³) * sqrt(ζ)</code>, where T₇ is the temperature in units of 10^7 K.</li>
<li><b>Screening Term (H_12)</b>: For each reaction, the term H_12 is calculated:<ul>
<li>For a two-body reaction (reactants Z₁ and Z₂): <code>H_12 = prefactor * Z₁ * Z₂</code>.</li>
<li>For the triple-alpha reaction (3 * He4): <code>H_12 = 3 * (prefactor * Z_α * Z_α)</code>.</li>
<li>For one-body reactions (decays), H_12 is 0, so the factor is 1.</li>
</ul>
</li>
<li><b>Capping</b>: The value of H_12 is capped at 2.0 to prevent excessively large and unphysical screening factors (exp(2) ≈ 7.4).</li>
<li><b>Final Factor</b>: The screening factor for the reaction is <code>exp(H_12)</code>. </li>
</ol>
</div>
</div>
<a id="a8b0590814e7058b4ff3f0cd6f4124773" name="a8b0590814e7058b4ff3f0cd6f4124773"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a8b0590814e7058b4ff3f0cd6f4124773">&#9670;&#160;</a></span>calculateScreeningFactors() <span class="overload">[1/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">std::vector&lt; <a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html#a107ff2897f040d6f27f69d56a0bdd28d">ADDouble</a> &gt; gridfire::screening::WeakScreeningModel::calculateScreeningFactors </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;&#160;</td>
<td class="paramname"><em>reactions</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; fourdst::atomic::Species &gt; &amp;&#160;</td>
<td class="paramname"><em>species</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; CppAD::AD&lt; double &gt; &gt; &amp;&#160;</td>
<td class="paramname"><em>Y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">CppAD::AD&lt; double &gt;&#160;</td>
<td class="paramname"><em>T9</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">CppAD::AD&lt; double &gt;&#160;</td>
<td class="paramname"><em>rho</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Calculates weak screening factors using CppAD types. </p>
<p>This is the automatic differentiation-compatible version of the method. It allows the derivatives of the screening factors to be computed with respect to plasma conditions.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">reactions</td><td>The set of logical reactions in the network. </td></tr>
<tr><td class="paramname">species</td><td>A vector of all atomic species involved in the network. </td></tr>
<tr><td class="paramname">Y</td><td>The composition object giving the current molar abundances. </td></tr>
<tr><td class="paramname">T9</td><td>The temperature as an AD type. </td></tr>
<tr><td class="paramname">rho</td><td>The plasma density as an AD type. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A vector of screening factors as AD types. </dd></dl>
<p>Implements <a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html#a1da8242c7591ab32453d1e0109999d6c">gridfire::screening::ScreeningModel</a>.</p>
</div>
</div>
<a id="a6a215d082b0d05126fb2b19fd1983446" name="a6a215d082b0d05126fb2b19fd1983446"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a6a215d082b0d05126fb2b19fd1983446">&#9670;&#160;</a></span>calculateScreeningFactors() <span class="overload">[2/2]</span></h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">std::vector&lt; double &gt; gridfire::screening::WeakScreeningModel::calculateScreeningFactors </td>
<td>(</td>
<td class="paramtype">const <a class="el" href="classgridfire_1_1reaction_1_1ReactionSet.html">reaction::ReactionSet</a> &amp;&#160;</td>
<td class="paramname"><em>reactions</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; fourdst::atomic::Species &gt; &amp;&#160;</td>
<td class="paramname"><em>species</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::vector&lt; double &gt; &amp;&#160;</td>
<td class="paramname"><em>Y</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>T9</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">double&#160;</td>
<td class="paramname"><em>rho</em>&#160;</td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td> const</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">override</span><span class="mlabel">virtual</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Calculates weak screening factors for a set of reactions. </p>
<p>This method computes the screening enhancement factor for each reaction based on the Salpeter (1954) formula.</p>
<dl class="params"><dt>Parameters</dt><dd>
<table class="params">
<tr><td class="paramname">reactions</td><td>The set of logical reactions in the network. </td></tr>
<tr><td class="paramname">species</td><td>A vector of all atomic species involved in the network. </td></tr>
<tr><td class="paramname">Y</td><td>The composition object giving the current molar abundances. </td></tr>
<tr><td class="paramname">T9</td><td>The temperature in units of 10^9 K. </td></tr>
<tr><td class="paramname">rho</td><td>The plasma density in g/cm^3. </td></tr>
</table>
</dd>
</dl>
<dl class="section return"><dt>Returns</dt><dd>A vector of screening factors (dimensionless), one for each reaction.</dd></dl>
<p><b>Usage</b> </p><div class="fragment"><div class="line"><a class="code hl_class" href="classgridfire_1_1screening_1_1WeakScreeningModel.html">WeakScreeningModel</a> weak_model;</div>
<div class="line"><span class="comment">// ... (initialize reactions, species, Y, T9, rho)</span></div>
<div class="line">std::vector&lt;double&gt; factors = weak_model.<a class="code hl_function" href="classgridfire_1_1screening_1_1WeakScreeningModel.html#a6a215d082b0d05126fb2b19fd1983446">calculateScreeningFactors</a>(</div>
<div class="line"> reactions, species, Y, T9, rho</div>
<div class="line">);</div>
<div class="ttc" id="aclassgridfire_1_1screening_1_1WeakScreeningModel_html"><div class="ttname"><a href="classgridfire_1_1screening_1_1WeakScreeningModel.html">gridfire::screening::WeakScreeningModel</a></div><div class="ttdoc">Implements the weak screening model based on the Debye-Hückel approximation.</div><div class="ttdef"><b>Definition</b> screening_weak.h:27</div></div>
<div class="ttc" id="aclassgridfire_1_1screening_1_1WeakScreeningModel_html_a6a215d082b0d05126fb2b19fd1983446"><div class="ttname"><a href="classgridfire_1_1screening_1_1WeakScreeningModel.html#a6a215d082b0d05126fb2b19fd1983446">gridfire::screening::WeakScreeningModel::calculateScreeningFactors</a></div><div class="ttdeci">std::vector&lt; double &gt; calculateScreeningFactors(const reaction::ReactionSet &amp;reactions, const std::vector&lt; fourdst::atomic::Species &gt; &amp;species, const std::vector&lt; double &gt; &amp;Y, double T9, double rho) const override</div><div class="ttdoc">Calculates weak screening factors for a set of reactions.</div><div class="ttdef"><b>Definition</b> screening_weak.cpp:22</div></div>
</div><!-- fragment -->
<p>Implements <a class="el" href="classgridfire_1_1screening_1_1ScreeningModel.html#ab08c4490f9da18254a7c6f29be1f62ce">gridfire::screening::ScreeningModel</a>.</p>
</div>
</div>
<h2 class="groupheader">Member Data Documentation</h2>
<a id="a0a4d7d6d36dbe7b764b613d34f18386f" name="a0a4d7d6d36dbe7b764b613d34f18386f"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a0a4d7d6d36dbe7b764b613d34f18386f">&#9670;&#160;</a></span>m_logger</h2>
<div class="memitem">
<div class="memproto">
<table class="mlabels">
<tr>
<td class="mlabels-left">
<table class="memname">
<tr>
<td class="memname">quill::Logger* gridfire::screening::WeakScreeningModel::m_logger = fourdst::logging::LogManager::getInstance().getLogger(&quot;log&quot;)</td>
</tr>
</table>
</td>
<td class="mlabels-right">
<span class="mlabels"><span class="mlabel">private</span></span> </td>
</tr>
</table>
</div><div class="memdoc">
<p>Logger instance for recording trace and debug information. </p>
</div>
</div>
<hr/>The documentation for this class was generated from the following files:<ul>
<li>src/include/gridfire/screening/<a class="el" href="screening__weak_8h.html">screening_weak.h</a></li>
<li>src/lib/screening/<a class="el" href="screening__weak_8cpp.html">screening_weak.cpp</a></li>
</ul>
</div><!-- contents -->
</div><!-- doc-content -->
<!-- start footer part -->
<div id="nav-path" class="navpath"><!-- id is needed for treeview function! -->
<ul>
<li class="navelem"><a class="el" href="namespacegridfire.html">gridfire</a></li><li class="navelem"><a class="el" href="namespacegridfire_1_1screening.html">screening</a></li><li class="navelem"><a class="el" href="classgridfire_1_1screening_1_1WeakScreeningModel.html">WeakScreeningModel</a></li>
<li class="footer">Generated by <a href="https://www.doxygen.org/index.html"><img class="footer" src="doxygen.svg" width="104" height="31" alt="doxygen"/></a> 1.9.8 </li>
</ul>
</div>
</body>
</html>
Reference in New Issue Copy Permalink