PHOENICS code IV

mehdi

HI,

I'm mehdi who asked a bout Schemes of discretization in PHOENICS code III in this FORUM, My problem is not in the use of differencing schemes in PHOENICS but I try to make a comparaison between what I have do in the discretization and what is done in PHOENICS code. I have some difficulties on the stability conditions of the schemes. I want to find a mathematical reference which can help me. In all books what I have, the stability requirements are : the discretised maximum requirement. the requirement of positivity. (like in the book of Malalasekera & Versteeg :An introduction of computational fluid dynamics: the finite volume method) but always they present their work in case of incompressible flow and steady one.

I work on Navier Stokes Equations solved by PHOENICS code specialy in case of free surface. I have discretised the Navier Sotkes Equations with finite volume method and differnt finite difference schemes for convection and diffusion terms and in case of unsteady flow, it's a general case so the manner what I should take didn't exist in books.

Please, if you can help me by a best mathematical reference of PHOENICS EQUATIONS or you make with some persone who know the mathematical style of PHOENICS. If some one are agree, I can send him a part of my work in a document.ps

Thank you of your answer in CFD FORUM.