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Finite volume discretization

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Old   January 26, 2017, 16:35
Default Finite volume discretization
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Miad Al Mursaline
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Is there any paper or book where I can find finite volume discretization of general unsteady transport equation in collocated body fitted grids? I have found a paper where the steady case is discussed.Since I am a novice in cfd,without a good paper or book I cannot proceed alone.
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Old   January 27, 2017, 04:05
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Filippo Maria Denaro
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in which CFD books have you searched the topic so far?
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Old   January 27, 2017, 11:29
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Quote:
Originally Posted by FMDenaro View Post
in which CFD books have you searched the topic so far?
Thank you for the reply.I have seen the topic in a paper(Numerical Study of the Turbulent Flow
Past an Airfoil with Trailing Edge SeparationC. M. Rhie)but have not found it in any textbook.

I have seen Intro to CFD by Malalasekera and book of Ferziger and Peric.But I have not found any source where unsteady FVM discritization in body fitted grids is discussed.In the textbook for Malalasekera the discritization for cartesian grids is discussed.Although the transformation is not complicated but tedious.I have tried to do it,but I am not sure whether my derived algebraic equation is correct.
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Old   January 27, 2017, 12:27
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Actually, I am not sure of what you are looking for...

Unlike finite difference, finite volume allows you to compute directly the discrete flux on several types of grids without a coordinates transformation. The book of Peric and Ferziger explains that.
Once computed the fluxes, you can compute an update with some time integration method.
However, if you found a paper for the steady case, you can use that method for the computation of the integral of the fluxes and then use such terms in a semi-discretized time integration
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Old   January 27, 2017, 13:45
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Originally Posted by FMDenaro View Post
Actually, I am not sure of what you are looking for...

Unlike finite difference, finite volume allows you to compute directly the discrete flux on several types of grids without a coordinates transformation. The book of Peric and Ferziger explains that.
Once computed the fluxes, you can compute an update with some time integration method.
However, if you found a paper for the steady case, you can use that method for the computation of the integral of the fluxes and then use such terms in a semi-discretized time integration
Thanks for ur response The expression for the coefficients in the algebraic form of equation changes when you switch from cartesian to Curvilinear Coordinate System depending on the schemes used to discretize the fluxes.I wanted to know the expression for those coefficients.May be I am being vague, so cannot make it clear to you.Sorry about that.
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Old   January 27, 2017, 13:49
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yes, of course ...depending on the discretization, they change also on a uniform structured grid.
I suggest to start with simple problems to understanding the implementation
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