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A question on fvm::Sp(epsilon/k, k)

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Old   March 14, 2013, 08:18
Default A question on fvm::Sp(epsilon/k, k)
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Gerhard Holzinger
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Hello,

this is more a question of how to understand this term:

Code:
fvm::Sp(epsilon/k, k)
This term is on the rhs of the kEqn of the kEpsilon model.

Why is this form used?

Mathematically, one could also write:

Code:
fvm::Sp(epsilon)
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Old   March 18, 2013, 04:08
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Christian Lucas
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Hi

the reason is stability of the linear equation system

this would go into the source vector
fvm::Sp(epsilon)

and this in the matrix of the linear equation system.
fvm::Sp(epsilon/k, k)

Regards,
Christian
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Old   April 14, 2014, 20:26
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Dongyue Li
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Quote:
Originally Posted by Chris Lucas View Post
Hi

the reason is stability of the linear equation system

this would go into the source vector
fvm::Sp(epsilon)

and this in the matrix of the linear equation system.
fvm::Sp(epsilon/k, k)

Regards,
Christian
Hi Christian,

If this fvm::Sp(epsilon) go into the source vector, why dont we use epsilon instead?
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kepsilon, source term, turbulence

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