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tadded fluid BC methods, testing stokes_law for dependence on CFD time step - s… |
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git clone git://src.adamsgaard.dk/sphere |
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LICENSE |
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--- |
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commit 48692b733e6e121ddf0f6bd984db99ee677ba2cb |
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parent 3bac1089f971803928f003fba88be3c1b0433c46 |
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Author: Anders Damsgaard <[email protected]> |
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Date: Fri, 2 May 2014 09:55:19 +0200 |
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added fluid BC methods, testing stokes_law for dependence on CFD time step |
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Diffstat: |
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M doc/html/genindex.html | 24 ++++++++++++++++++++++-- |
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M doc/html/objects.inv | 0 |
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M doc/html/python_api.html | 69 ++++++++++++++++++++++++++++-… |
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M doc/html/searchindex.js | 4 ++-- |
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M doc/pdf/sphere.pdf | 0 |
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M python/sphere.py | 40 +++++++++++++++++++++++++++++… |
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M tests/stokes_law.py | 7 ++++--- |
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7 files changed, 132 insertions(+), 12 deletions(-) |
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--- |
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diff --git a/doc/html/genindex.html b/doc/html/genindex.html |
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t@@ -378,10 +378,30 @@ |
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</dt> |
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+ <dt><a href="python_api.html#sphere.sim.setDEMstepsPerCFDstep">setDEMstepsPe… |
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+ </dt> |
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+ |
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+ |
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+ <dt><a href="python_api.html#sphere.sim.setFluidBottomFixedPressure">setFlui… |
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+ </dt> |
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+ |
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+ |
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+ <dt><a href="python_api.html#sphere.sim.setFluidBottomNoFlow">setFluidBottom… |
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+ </dt> |
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+ |
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+ |
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<dt><a href="python_api.html#sphere.sim.setFluidPressureModulation">setFluid… |
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</dt> |
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+ <dt><a href="python_api.html#sphere.sim.setFluidTopFixedPressure">setFluidTo… |
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+ </dt> |
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+ |
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+ |
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+ <dt><a href="python_api.html#sphere.sim.setFluidTopNoFlow">setFluidTopNoFlow… |
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+ </dt> |
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+ |
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+ |
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<dt><a href="python_api.html#sphere.sim.setGamma">setGamma() (sphere.sim met… |
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</dt> |
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t@@ -389,6 +409,8 @@ |
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<dt><a href="python_api.html#sphere.sim.setMaxIterations">setMaxIterations()… |
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</dt> |
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+ </dl></td> |
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+ <td style="width: 33%" valign="top"><dl> |
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<dt><a href="python_api.html#sphere.sim.setTheta">setTheta() (sphere.sim met… |
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</dt> |
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t@@ -401,8 +423,6 @@ |
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<dt><a href="python_api.html#sphere.sim.shear">shear() (sphere.sim method)</… |
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</dt> |
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- </dl></td> |
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- <td style="width: 33%" valign="top"><dl> |
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<dt><a href="python_api.html#sphere.sim.sheardisp">sheardisp() (sphere.sim m… |
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</dt> |
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diff --git a/doc/html/objects.inv b/doc/html/objects.inv |
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Binary files differ. |
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diff --git a/doc/html/python_api.html b/doc/html/python_api.html |
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t@@ -1260,11 +1260,49 @@ best results precision and performance-wise are obtain… |
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of 0 and a low tolerance criteria value.</p> |
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<p>The default and recommended value is 0.0.</p> |
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<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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-<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+<a class="reference internal" href="#sphere.sim.setDEMstepsPerCFDstep" title="… |
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<a class="reference internal" href="#sphere.sim.setMaxIterations" title="spher… |
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</dd></dl> |
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<dl class="method"> |
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+<dt id="sphere.sim.setDEMstepsPerCFDstep"> |
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+<tt class="descname">setDEMstepsPerCFDstep</tt><big>(</big><em>ndem</em><big>)… |
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+<dd><p>A fluid solver parameter, the value of the maxiter parameter denotes the |
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+number of DEM time steps to be performed per CFD time step.</p> |
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+<p>The default value is 1.</p> |
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+<table class="docutils field-list" frame="void" rules="none"> |
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+<col class="field-name" /> |
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+<col class="field-body" /> |
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+<tbody valign="top"> |
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+<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="… |
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+</tr> |
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+</tbody> |
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+</table> |
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+<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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+<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+<a class="reference internal" href="#sphere.sim.setMaxIterations" title="spher… |
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+</dd></dl> |
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+ |
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+<dl class="method"> |
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+<dt id="sphere.sim.setFluidBottomFixedPressure"> |
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+<tt class="descname">setFluidBottomFixedPressure</tt><big>(</big><big>)</big><… |
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+<dd><p>Set the lower boundary of the fluid domain to follow the fixed pressure |
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+value (Dirichlet) boundary condition.</p> |
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+<p>This is the default behavior for the boundary. See also |
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+<a class="reference internal" href="#sphere.sim.setFluidBottomNoFlow" title="s… |
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+</dd></dl> |
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+ |
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+<dl class="method"> |
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+<dt id="sphere.sim.setFluidBottomNoFlow"> |
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+<tt class="descname">setFluidBottomNoFlow</tt><big>(</big><big>)</big><a class… |
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+<dd><p>Set the lower boundary of the fluid domain to follow the no-flow |
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+(Neumann) boundary condition.</p> |
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+<p>The default behavior for the boundary is fixed value (Dirichlet), see |
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+<a class="reference internal" href="#sphere.sim.setFluidBottomFixedPressure" t… |
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+</dd></dl> |
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+ |
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+<dl class="method"> |
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<dt id="sphere.sim.setFluidPressureModulation"> |
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<tt class="descname">setFluidPressureModulation</tt><big>(</big><em>A</em>, <e… |
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<dd><p>Set the parameters for the sine wave modulating the fluid pressures |
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t@@ -1286,6 +1324,24 @@ at the top boundary. Note that a cos-wave is obtained w… |
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</dd></dl> |
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<dl class="method"> |
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+<dt id="sphere.sim.setFluidTopFixedPressure"> |
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+<tt class="descname">setFluidTopFixedPressure</tt><big>(</big><big>)</big><a c… |
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+<dd><p>Set the upper boundary of the fluid domain to follow the fixed pressure |
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+value (Dirichlet) boundary condition.</p> |
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+<p>This is the default behavior for the boundary. See also |
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+<a class="reference internal" href="#sphere.sim.setFluidTopNoFlow" title="sphe… |
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+</dd></dl> |
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+ |
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+<dl class="method"> |
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+<dt id="sphere.sim.setFluidTopNoFlow"> |
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+<tt class="descname">setFluidTopNoFlow</tt><big>(</big><big>)</big><a class="h… |
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+<dd><p>Set the upper boundary of the fluid domain to follow the no-flow |
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+(Neumann) boundary condition.</p> |
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+<p>The default behavior for the boundary is fixed value (Dirichlet), see |
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+<a class="reference internal" href="#sphere.sim.setFluidTopFixedPressure" titl… |
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+</dd></dl> |
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+ |
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+<dl class="method"> |
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<dt id="sphere.sim.setGamma"> |
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<tt class="descname">setGamma</tt><big>(</big><em>gamma</em><big>)</big><a cla… |
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<dd><p>Gamma is a fluid solver parameter, used for smoothing the pressure |
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t@@ -1303,7 +1359,8 @@ more averaging is introduced. A value of 0.0 disables al… |
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</tbody> |
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</table> |
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<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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-<a class="reference internal" href="#sphere.sim.setBeta" title="sphere.sim.set… |
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+<a class="reference internal" href="#sphere.sim.setBeta" title="sphere.sim.set… |
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+<a class="reference internal" href="#sphere.sim.setDEMstepsPerCFDstep" title="… |
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</dd></dl> |
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<dl class="method"> |
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t@@ -1325,7 +1382,8 @@ solver</td> |
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</tbody> |
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</table> |
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<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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-<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+and <a class="reference internal" href="#sphere.sim.setTolerance" title="spher… |
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</dd></dl> |
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<dl class="method"> |
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t@@ -1347,7 +1405,8 @@ instabilities may be avoided with lower values.</p> |
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</tbody> |
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</table> |
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<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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-<a class="reference internal" href="#sphere.sim.setBeta" title="sphere.sim.set… |
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+<a class="reference internal" href="#sphere.sim.setBeta" title="sphere.sim.set… |
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+<a class="reference internal" href="#sphere.sim.setDEMstepsPerCFDstep" title="… |
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</dd></dl> |
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<dl class="method"> |
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t@@ -1367,7 +1426,7 @@ residual</td> |
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</tbody> |
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</table> |
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<p>Other solver parameter setting functions: <a class="reference internal" hre… |
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-<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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+<a class="reference internal" href="#sphere.sim.setTheta" title="sphere.sim.se… |
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<a class="reference internal" href="#sphere.sim.setMaxIterations" title="spher… |
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</dd></dl> |
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diff --git a/doc/html/searchindex.js b/doc/html/searchindex.js |
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t@@ -1 +1 @@ |
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-Search.setIndex({objects:{"":{sphere:[5,0,1,""]},sphere:{status:[5,2,1,""],con… |
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-\ No newline at end of file |
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+Search.setIndex({objects:{"":{sphere:[5,0,1,""]},sphere:{status:[5,2,1,""],con… |
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+\ No newline at end of file |
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diff --git a/doc/pdf/sphere.pdf b/doc/pdf/sphere.pdf |
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Binary files differ. |
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diff --git a/python/sphere.py b/python/sphere.py |
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t@@ -2374,6 +2374,46 @@ class sim: |
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self.maxiter = numpy.array(1e4) |
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self.ndem = numpy.array(1) |
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+ def setFluidBottomNoFlow(self): |
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+ ''' |
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+ Set the lower boundary of the fluid domain to follow the no-flow |
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+ (Neumann) boundary condition. |
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+ |
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+ The default behavior for the boundary is fixed value (Dirichlet), see |
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+ :func:`setFluidBottomFixedPressure()`. |
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+ ''' |
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+ self.bc_bot[0] = 1 |
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+ |
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+ def setFluidBottomFixedPressure(self): |
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+ ''' |
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+ Set the lower boundary of the fluid domain to follow the fixed pressure |
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+ value (Dirichlet) boundary condition. |
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+ |
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+ This is the default behavior for the boundary. See also |
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+ :func:`setFluidBottomNoFlow()` |
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+ ''' |
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+ self.bc_bot[0] = 0 |
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+ |
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+ def setFluidTopNoFlow(self): |
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+ ''' |
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+ Set the upper boundary of the fluid domain to follow the no-flow |
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+ (Neumann) boundary condition. |
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+ |
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+ The default behavior for the boundary is fixed value (Dirichlet), see |
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+ :func:`setFluidTopFixedPressure()`. |
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+ ''' |
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+ self.bc_top[0] = 1 |
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+ |
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+ def setFluidTopFixedPressure(self): |
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+ ''' |
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+ Set the upper boundary of the fluid domain to follow the fixed pressure |
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+ value (Dirichlet) boundary condition. |
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+ |
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+ This is the default behavior for the boundary. See also |
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+ :func:`setFluidTopNoFlow()` |
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+ ''' |
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+ self.bc_top[0] = 0 |
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+ |
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def defaultParams(self, |
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mu_s = 0.4, |
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mu_d = 0.4, |
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diff --git a/tests/stokes_law.py b/tests/stokes_law.py |
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t@@ -8,7 +8,7 @@ import matplotlib.pyplot as plt |
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print("### Stokes test - single sphere sedimentation ###") |
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## Stokes drag |
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-orig = sphere.sim(sid = "stokes_law", fluid = True) |
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+orig = sphere.sim(sid = "stokes_law_DEMCFD1", fluid = True) |
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cleanup(orig) |
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orig.defaultParams() |
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orig.addParticle([0.5,0.5,1.46], 0.05) |
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t@@ -18,7 +18,8 @@ orig.defineWorldBoundaries([1.0,1.0,2.0]) |
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orig.initFluid(mu = 8.9e-4) |
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#orig.initTemporal(total = 1.0, file_dt = 0.01) |
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#orig.initTemporal(total = 1.0e-1, file_dt = 5.0e-3) |
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-orig.initTemporal(total = 5.0, file_dt = 1.0e-2) |
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+#orig.initTemporal(total = 5.0, file_dt = 1.0e-2) |
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+orig.initTemporal(total = 1.0, file_dt = 1.0e-2) |
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#orig.time_file_dt = orig.time_dt |
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#orig.time_total = orig.time_dt*200 |
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#orig.time_file_dt = orig.time_dt*10 |
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t@@ -30,7 +31,7 @@ orig.vel[0,2] = -0.1 |
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#orig.vel[0,2] = -0.001 |
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#orig.setBeta(0.5) |
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orig.setTolerance(1.0e-4) |
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-orig.setDEMstepsPerCFDstep(100) |
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+#orig.setDEMstepsPerCFDstep(100) |
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orig.run(dry=True) |
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orig.run(verbose=True) |
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py = sphere.sim(sid = orig.sid, fluid = True) |
