Difference between revisions of "ChtMultiRegionFoam"
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====Mass conservation==== | ====Mass conservation==== | ||
| + | |||
| + | The variable-density continuity equation is | ||
| + | |||
| + | <table width="70%"><tr><td> | ||
| + | <center><math> | ||
| + | |||
| + | \frac{\partial \rho}{\partial t} + \frac{\partial {\rho u}_j}{\partial x_j} = 0 | ||
| + | |||
| + | </math></center> | ||
| + | </td><td width="5%">(1)</td></tr></table> | ||
| + | |||
| + | The source code can be found in src/finiteVolume/cfdTools/compressible/rhoEqn.H: | ||
| + | |||
| + | <br><cpp> | ||
| + | |||
| + | { | ||
| + | fvScalarMatrix rhoEqn | ||
| + | ( | ||
| + | fvm::ddt(rho) | ||
| + | + fvc::div(phi) | ||
| + | == | ||
| + | fvOptions(rho) | ||
| + | ); | ||
| + | |||
| + | fvOptions.constrain(rhoEqn); | ||
| + | |||
| + | rhoEqn.solve(); | ||
| + | |||
| + | fvOptions.correct(rho); | ||
| + | } | ||
| + | |||
| + | </cpp><br> | ||
====Momentum conservation==== | ====Momentum conservation==== | ||
Revision as of 17:49, 2 November 2018
ChtMultiRegionFoam
Solver for steady or transient fluid flow and solid heat conduction, with conjugate heat transfer between regions, buoyancy effects, turbulence, reactions and radiation modelling.
Contents
1 Equations
For each region defined as fluid, the according equation for the fluid is solved and the same is done for each solid region. The regions are coupled by a thermal boundary condition.
1.1 Equations Fluid
For each fluid region the compressible Navier Stokes equation are solved.
1.1.1 Mass conservation
The variable-density continuity equation is
 | (1) |
The source code can be found in src/finiteVolume/cfdTools/compressible/rhoEqn.H:
{ fvScalarMatrix rhoEqn ( fvm::ddt(rho) + fvc::div(phi) == fvOptions(rho) ); fvOptions.constrain(rhoEqn); rhoEqn.solve(); fvOptions.correct(rho); }
