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<div class="local-toc"><ul>
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<li><a class="reference internal" href="#">forceModel_MeiLift command</a><ul>
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<li><a class="reference internal" href="#syntax">Syntax</a></li>
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<li><a class="reference internal" href="#examples">Examples</a></li>
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<li><a class="reference internal" href="#description">Description</a></li>
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<li><a class="reference internal" href="#restrictions">Restrictions</a></li>
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<li>forceModel_MeiLift command</li>
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<div class="section" id="forcemodel-meilift-command">
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<span id="index-0"></span><h1>forceModel_MeiLift command<a class="headerlink" href="#forcemodel-meilift-command" title="Permalink to this headline">¶</a></h1>
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<div class="section" id="syntax">
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<h2>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline">¶</a></h2>
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<p>Defined in couplingProperties dictionary.</p>
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<div class="highlight-python"><div class="highlight"><pre>forceModels
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(
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MeiLift
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);
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MeiLiftProps
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{
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velFieldName "U";
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useSecondOrderTerms;
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interpolation switch1;
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vorticityInterpolationType "type1"
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UInterpolationType "type2"
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verbose switch2;
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treatForceExplicit switch3;
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scalarViscosity switch4;
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nu scalar1;
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};
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</pre></div>
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<ul class="simple">
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<li><em>U</em> = name of the finite volume fluid velocity field</li>
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<li><em>useSecondOrderTerms</em> = switch to activate second order terms in the lift force model</li>
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<li><em>switch1</em> = switch to activate tri-linear interpolation of the flow quantities at the particle position</li>
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<li><em>type1</em> = (optional, default cellPoint) interpolation type for vorticity field</li>
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<li><em>type2</em> = (optional, default cellPointFace) interpolation type for velocity field</li>
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<li><em>switch2</em> = switch to activate the report of per-particle quantities to the screen</li>
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<li><em>switch3</em> = (optional, default true) sub model switch, see <a class="reference internal" href="forceSubModel.html"><em>forceSubModel</em></a> for details</li>
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<li><em>switch4</em> = (optional, default false) sub model switch, see <a class="reference internal" href="forceSubModel.html"><em>forceSubModel</em></a> for details</li>
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<li><em>scalar1</em> = optional, only if switch4 is true</li>
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</ul>
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<div class="section" id="examples">
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<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
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<div class="highlight-python"><div class="highlight"><pre>forceModels
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(
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MeiLift
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);
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MeiLiftProps
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{
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velFieldName "U";
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useSecondOrderTerms;
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interpolation true;
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verbose true;
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}
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</pre></div>
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</div>
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</div>
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<div class="section" id="description">
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<h2>Description<a class="headerlink" href="#description" title="Permalink to this headline">¶</a></h2>
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<p>The force model performs the calculation of forces (e.g. fluid-particle interaction forces) acting on each DEM particle. The MeiLift model calculates the lift force for each particle based on Loth and Dorgan (2009). In case the keyword “useSecondOrderTerms” is not specified, this lift force model uses the expression of McLaughlin (1991, Journal of Fluid Mechanics 224:261-274).</p>
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</div>
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<div class="section" id="restrictions">
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<h2>Restrictions<a class="headerlink" href="#restrictions" title="Permalink to this headline">¶</a></h2>
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<p>None.</p>
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</div>
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<div class="section" id="related-commands">
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<h2>Related commands<a class="headerlink" href="#related-commands" title="Permalink to this headline">¶</a></h2>
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<p><a class="reference internal" href="forceModel.html"><em>forceModel</em></a></p>
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