Difference between revisions of "Contrib simpleScalarFoam"

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== Short description ==
 
== Short description ==
  
A steady-state incompressible laminar flow solver with scalar transport and mass transfer coefficient and Sherwood number calculation.
+
A steady-state incompressible turbulent flow solver with scalar transport and mass transfer coefficient and Sherwood number calculation.
  
 
== Compilation ==
 
== Compilation ==
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* Download the solver package
 
* Download the solver package
* tar xzf simpleScalarFoam.tar.gz
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* tar xzf SimpleScalarFoam.tar.gz
 
* cd simpleScalarFoam
 
* cd simpleScalarFoam
 
* wmake
 
* wmake
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<math>  
 
<math>  
\nabla \cdot \left(\varphi T\right) - \nabla^2 \left( D_T \cdot T \right) = 0
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\nabla \cdot \left(\mathbf{U} T\right) - \nabla \cdot \left( (D_T + \nu_{turb}/Sc_{turb}) \nabla T \right) = 0
 
</math>
 
</math>
  
The mass transfer coefficient is determined at each wall by:
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The mass transfer coefficient is determined at each wall by assuming that the value of ''T'' at the wall is zero:
  
<math>k_c=-\frac{D_T}{T_b-T_{wall}} \frac{\partial T}{\partial y}|_{y=0}</math>
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<math>k_c=-\frac{D_T}{T_b} \frac{\partial T}{\partial y}|_{y=0}</math>
  
where <math>T_b</math> is the bulk value of ''T'', <math>T_{wall}</math> is the value of ''T'' at the wall and ''y'' is the direction normal to the wall.
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where <math>T_b</math> is the bulk value of ''T'' and ''y'' is the direction normal to the wall.
  
 
The Sherwood number is then determined by:
 
The Sherwood number is then determined by:
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where ''d'' is the characteristic dimension.
 
where ''d'' is the characteristic dimension.
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In order to use the solver, you should add <math>D_T</math>, <math>T_b</math> and ''d'' to the transportProperties dictionary.
  
 
== Download ==
 
== Download ==
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The most up-to-date version of the sources can be downloaded below:
 
The most up-to-date version of the sources can be downloaded below:
  
 +
*[[Media:SimpleScalarFoam.tar.gz|SimpleScalarFoam.tar.gz]]
  
 
== History ==
 
== History ==
  
 +
* 2009-06-15: Second version
 
* 2009-01-19: Initial upload
 
* 2009-01-19: Initial upload
 +
 +
[[Category:Incompressible flow solvers]]

Latest revision as of 10:17, 21 October 2013

Valid versions: OF version 15.png

1 Short description

A steady-state incompressible turbulent flow solver with scalar transport and mass transfer coefficient and Sherwood number calculation.

2 Compilation

Do the following steps:

  • Download the solver package
  • tar xzf SimpleScalarFoam.tar.gz
  • cd simpleScalarFoam
  • wmake

3 Physics

The solver is based on simpleFoam, with the transport of a scalar T having a mass diffusion coefficient D_T:

 
\nabla \cdot \left(\mathbf{U} T\right) - \nabla \cdot \left( (D_T + \nu_{turb}/Sc_{turb}) \nabla T \right) = 0

The mass transfer coefficient is determined at each wall by assuming that the value of T at the wall is zero:

k_c=-\frac{D_T}{T_b} \frac{\partial T}{\partial y}|_{y=0}

where T_b is the bulk value of T and y is the direction normal to the wall.

The Sherwood number is then determined by:

Sh=\frac{k_c d}{D_T}

where d is the characteristic dimension.

In order to use the solver, you should add D_T, T_b and d to the transportProperties dictionary.

4 Download

The most up-to-date version of the sources can be downloaded below:

5 History

  • 2009-06-15: Second version
  • 2009-01-19: Initial upload