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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "https://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
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<div class="title">ERF_EddyViscosity.H File Reference</div> </div>
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<div class="textblock"><code>#include <<a class="el" href="ERF__ABLMost_8H_source.html">ERF_ABLMost.H</a>></code><br />
<code>#include <<a class="el" href="ERF__DataStruct_8H_source.html">ERF_DataStruct.H</a>></code><br />
<code>#include <AMReX_BCRec.H></code><br />
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<p><a href="ERF__EddyViscosity_8H_source.html">Go to the source code of this file.</a></p>
<table class="memberdecls">
<tr class="heading"><td colspan="2"><h2 class="groupheader"><a name="func-members"></a>
Functions</h2></td></tr>
<tr class="memitem:a56f8bc902f5725285b33881ce5983dd0"><td class="memItemLeft" align="right" valign="top">void </td><td class="memItemRight" valign="bottom"><a class="el" href="ERF__EddyViscosity_8H.html#a56f8bc902f5725285b33881ce5983dd0">ComputeTurbulentViscosity</a> (const amrex::MultiFab &xvel, const amrex::MultiFab &yvel, const amrex::MultiFab &Tau11, const amrex::MultiFab &Tau22, const amrex::MultiFab &Tau33, const amrex::MultiFab &Tau12, const amrex::MultiFab &Tau13, const amrex::MultiFab &Tau23, const amrex::MultiFab &cons_in, const amrex::MultiFab &wdist, amrex::MultiFab &eddyViscosity, amrex::MultiFab &Hfx1, amrex::MultiFab &Hfx2, amrex::MultiFab &Hfx3, amrex::MultiFab &Diss, const amrex::Geometry &geom, const amrex::MultiFab &mapfac_u, const amrex::MultiFab &mapfac_v, const std::unique_ptr< amrex::MultiFab > &z_phys_nd, const <a class="el" href="structSolverChoice.html">SolverChoice</a> &solverChoice, std::unique_ptr< <a class="el" href="classABLMost.html">ABLMost</a> > &most, const amrex::FArrayBox *z_0, const bool &exp_most, const bool &use_terrain_fitted_coords, const bool &use_moisture, int level, const amrex::BCRec *bc_ptr, bool vert_only=false)</td></tr>
<tr class="separator:a56f8bc902f5725285b33881ce5983dd0"><td class="memSeparator" colspan="2"> </td></tr>
<tr class="memitem:a1d775f0ce64d37053b33d514438ee856"><td class="memItemLeft" align="right" valign="top">AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real </td><td class="memItemRight" valign="bottom"><a class="el" href="ERF__EddyViscosity_8H.html#a1d775f0ce64d37053b33d514438ee856">ComputeSmnSmn</a> (int &i, int &j, int &k, const amrex::Array4< amrex::Real const > &tau11, const amrex::Array4< amrex::Real const > &tau22, const amrex::Array4< amrex::Real const > &tau33, const amrex::Array4< amrex::Real const > &tau12, const amrex::Array4< amrex::Real const > &tau13, const amrex::Array4< amrex::Real const > &tau23, const int &klo, const bool &use_most, const bool &exp_most)</td></tr>
<tr class="separator:a1d775f0ce64d37053b33d514438ee856"><td class="memSeparator" colspan="2"> </td></tr>
</table>
<h2 class="groupheader">Function Documentation</h2>
<a id="a1d775f0ce64d37053b33d514438ee856"></a>
<h2 class="memtitle"><span class="permalink"><a href="#a1d775f0ce64d37053b33d514438ee856">◆ </a></span>ComputeSmnSmn()</h2>
<div class="memitem">
<div class="memproto">
<table class="memname">
<tr>
<td class="memname">AMREX_GPU_DEVICE AMREX_FORCE_INLINE amrex::Real ComputeSmnSmn </td>
<td>(</td>
<td class="paramtype">int & </td>
<td class="paramname"><em>i</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>j</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">int & </td>
<td class="paramname"><em>k</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau11</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau22</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau33</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau12</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau13</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Array4< amrex::Real const > & </td>
<td class="paramname"><em>tau23</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">const int & </td>
<td class="paramname"><em>klo</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool & </td>
<td class="paramname"><em>use_most</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool & </td>
<td class="paramname"><em>exp_most</em> </td>
</tr>
<tr>
<td></td>
<td>)</td>
<td></td><td></td>
</tr>
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<div class="fragment"><div class="line"><a name="l00043"></a><span class="lineno"> 43</span> {</div>
<div class="line"><a name="l00044"></a><span class="lineno"> 44</span>  <span class="comment">// NOTES:</span></div>
<div class="line"><a name="l00045"></a><span class="lineno"> 45</span>  <span class="comment">// - If ERF_EXPLICIT_MOST_STRESS is not used, then we do not use the</span></div>
<div class="line"><a name="l00046"></a><span class="lineno"> 46</span>  <span class="comment">// strains lying on the bottom boundary with MOST. These values are</span></div>
<div class="line"><a name="l00047"></a><span class="lineno"> 47</span>  <span class="comment">// corrupted with the reflect odd BC used to fill the ghost cells.</span></div>
<div class="line"><a name="l00048"></a><span class="lineno"> 48</span>  <span class="comment">// - Neglecting the strains on the bottom boundary and using a one-</span></div>
<div class="line"><a name="l00049"></a><span class="lineno"> 49</span>  <span class="comment">// sided average implies that the strains are equal at klo and klo+1.</span></div>
<div class="line"><a name="l00050"></a><span class="lineno"> 50</span>  <span class="comment">// du/dz and dv/dz can be assumed to be equal through the first cell.</span></div>
<div class="line"><a name="l00051"></a><span class="lineno"> 51</span>  <span class="comment">// However, whereas dw/dx = dw/dy = 0 on the surface, this is not true at</span></div>
<div class="line"><a name="l00052"></a><span class="lineno"> 52</span>  <span class="comment">// klo+1. Therefore, the strains are not equal in general.</span></div>
<div class="line"><a name="l00053"></a><span class="lineno"> 53</span>  <span class="comment">// - If ERF_EXPLICIT_MOST_STRESS _is_ used, then strains may be correctly</span></div>
<div class="line"><a name="l00054"></a><span class="lineno"> 54</span>  <span class="comment">// evaluated at the surface and no assumptions are needed.</span></div>
<div class="line"><a name="l00055"></a><span class="lineno"> 55</span>  amrex::Real s13bar;</div>
<div class="line"><a name="l00056"></a><span class="lineno"> 56</span>  <span class="keywordflow">if</span> (use_most && k==klo && !exp_most) {</div>
<div class="line"><a name="l00057"></a><span class="lineno"> 57</span>  s13bar = 0.5 * ( tau13(i , j , k+1) + tau13(i+1, j , k+1) );</div>
<div class="line"><a name="l00058"></a><span class="lineno"> 58</span>  }</div>
<div class="line"><a name="l00059"></a><span class="lineno"> 59</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00060"></a><span class="lineno"> 60</span>  {</div>
<div class="line"><a name="l00061"></a><span class="lineno"> 61</span>  s13bar = 0.25 * ( tau13(i , j , k ) + tau13(i , j , k+1)</div>
<div class="line"><a name="l00062"></a><span class="lineno"> 62</span>  + tau13(i+1, j , k ) + tau13(i+1, j , k+1) );</div>
<div class="line"><a name="l00063"></a><span class="lineno"> 63</span>  }</div>
<div class="line"><a name="l00064"></a><span class="lineno"> 64</span>  </div>
<div class="line"><a name="l00065"></a><span class="lineno"> 65</span>  amrex::Real s23bar;</div>
<div class="line"><a name="l00066"></a><span class="lineno"> 66</span>  <span class="keywordflow">if</span> (use_most && k==klo && !exp_most) {</div>
<div class="line"><a name="l00067"></a><span class="lineno"> 67</span>  s23bar = 0.5 * ( tau23(i , j , k+1) + tau23(i , j+1, k+1) );</div>
<div class="line"><a name="l00068"></a><span class="lineno"> 68</span>  }</div>
<div class="line"><a name="l00069"></a><span class="lineno"> 69</span>  <span class="keywordflow">else</span></div>
<div class="line"><a name="l00070"></a><span class="lineno"> 70</span>  {</div>
<div class="line"><a name="l00071"></a><span class="lineno"> 71</span>  s23bar = 0.25 * ( tau23(i , j , k ) + tau23(i , j , k+1)</div>
<div class="line"><a name="l00072"></a><span class="lineno"> 72</span>  + tau23(i , j+1, k ) + tau23(i , j+1, k+1) );</div>
<div class="line"><a name="l00073"></a><span class="lineno"> 73</span>  }</div>
<div class="line"><a name="l00074"></a><span class="lineno"> 74</span>  </div>
<div class="line"><a name="l00075"></a><span class="lineno"> 75</span>  amrex::Real s11bar = tau11(i,j,k);</div>
<div class="line"><a name="l00076"></a><span class="lineno"> 76</span>  amrex::Real s22bar = tau22(i,j,k);</div>
<div class="line"><a name="l00077"></a><span class="lineno"> 77</span>  amrex::Real s33bar = tau33(i,j,k);</div>
<div class="line"><a name="l00078"></a><span class="lineno"> 78</span>  amrex::Real s12bar = 0.25 * ( tau12(i , j , k ) + tau12(i , j+1, k )</div>
<div class="line"><a name="l00079"></a><span class="lineno"> 79</span>  + tau12(i+1, j , k ) + tau12(i+1, j+1, k ) );</div>
<div class="line"><a name="l00080"></a><span class="lineno"> 80</span>  </div>
<div class="line"><a name="l00081"></a><span class="lineno"> 81</span>  amrex::Real SmnSmn = s11bar*s11bar + s22bar*s22bar + s33bar*s33bar</div>
<div class="line"><a name="l00082"></a><span class="lineno"> 82</span>  + 2.0*s12bar*s12bar + 2.0*s13bar*s13bar + 2.0*s23bar*s23bar;</div>
<div class="line"><a name="l00083"></a><span class="lineno"> 83</span>  </div>
<div class="line"><a name="l00084"></a><span class="lineno"> 84</span>  <span class="keywordflow">return</span> SmnSmn;</div>
<div class="line"><a name="l00085"></a><span class="lineno"> 85</span> }</div>
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<p class="reference">Referenced by <a class="el" href="ERF__ComputeTurbulentViscosity_8cpp.html#acd9320f37597f453446a1e7e74804d0d">ComputeTurbulentViscosityLES()</a>, and <a class="el" href="ERF__MakeTauTerms_8cpp.html#a7a7d71e3e796b67737a6931399588ae8">erf_make_tau_terms()</a>.</p>
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<h2 class="memtitle"><span class="permalink"><a href="#a56f8bc902f5725285b33881ce5983dd0">◆ </a></span>ComputeTurbulentViscosity()</h2>
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<td class="memname">void ComputeTurbulentViscosity </td>
<td>(</td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>xvel</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>yvel</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau11</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau22</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau33</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau12</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau13</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>Tau23</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>cons_in</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>wdist</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">amrex::MultiFab & </td>
<td class="paramname"><em>eddyViscosity</em>, </td>
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<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">amrex::MultiFab & </td>
<td class="paramname"><em>Hfx1</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">amrex::MultiFab & </td>
<td class="paramname"><em>Hfx2</em>, </td>
</tr>
<tr>
<td class="paramkey"></td>
<td></td>
<td class="paramtype">amrex::MultiFab & </td>
<td class="paramname"><em>Hfx3</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">amrex::MultiFab & </td>
<td class="paramname"><em>Diss</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::Geometry & </td>
<td class="paramname"><em>geom</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>mapfac_u</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::MultiFab & </td>
<td class="paramname"><em>mapfac_v</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const std::unique_ptr< amrex::MultiFab > & </td>
<td class="paramname"><em>z_phys_nd</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const <a class="el" href="structSolverChoice.html">SolverChoice</a> & </td>
<td class="paramname"><em>solverChoice</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">std::unique_ptr< <a class="el" href="classABLMost.html">ABLMost</a> > & </td>
<td class="paramname"><em>most</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const amrex::FArrayBox * </td>
<td class="paramname"><em>z_0</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool & </td>
<td class="paramname"><em>exp_most</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool & </td>
<td class="paramname"><em>use_terrain_fitted_coords</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">const bool & </td>
<td class="paramname"><em>use_moisture</em>, </td>
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<td></td>
<td class="paramtype">int </td>
<td class="paramname"><em>level</em>, </td>
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<td></td>
<td class="paramtype">const amrex::BCRec * </td>
<td class="paramname"><em>bc_ptr</em>, </td>
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<td class="paramkey"></td>
<td></td>
<td class="paramtype">bool </td>
<td class="paramname"><em>vert_only</em> = <code>false</code> </td>
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<td></td>
<td>)</td>
<td></td><td></td>
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