# MAC methods??

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 January 30, 2005, 19:51 MAC methods?? #1 Sibel Guest   Posts: n/a Hi, I want to learn MAC methods for my thesis. Have you any suggestion like a link, book. I will wait, and also can you tell me the best iteration method in CFD code.

 January 31, 2005, 07:59 Re: MAC methods?? #2 Maciej Matyka Guest   Posts: n/a Hi, You can find some MAC calculations results on my web page: http://panoramix.ift.uni.wroc.pl/~maq/eng/ I've put also some results from my MSc thesis about combination of the MAC Method with SIMPLE algoritm (iteration procedure to solve N-S equations). Paper about SIMLPE can be downloaded from my home page too. Good Luck! Maciej Matyka

 January 31, 2005, 08:39 Re: MAC methods?? #3 sibel Guest   Posts: n/a Thanks a lots. My thesis algorithm very long, and I try to understad. 2D liguid solsing in a rectangular tank, but I am modifying code to 2D curvilinear coordinates. 2D curvilinear liquid sloshing but curvilinerar coordinates. so I have to learn MAC methods

 January 31, 2005, 09:28 Re: MAC methods?? #4 versi Guest   Posts: n/a MAC method use staggered grid where u, v compoment and pressure are located on left face, bottom face and center of a mesh cell, respectively. In curvilinear grids, there are problems with MAC method when left face turns from pointing to +x direction to pointing to +y direction, where (x,y) are Cartesican coordinates. Unless defining both u v on both left and bottom face, or defining U, V (contravariable velocity component) instead of u,v, MAC is unable to extend to curvilinear grids.

 January 31, 2005, 10:05 Re: MAC methods?? #5 sibel Guest   Posts: n/a if MAC methods cause some problem, which methods do you suggest me? if you, which methods do you prefer? My problem very difficult

 February 1, 2005, 08:00 Re: MAC methods?? #6 versi Guest   Posts: n/a Continue to use MAC under Cartesian grids, with special treatment of curvilinear BCs. The treatment of BC in Cartesian mesh is a hot problem in CFD.

 February 1, 2005, 09:02 Re: MAC methods?? #7 zxaar Guest   Posts: n/a i think i know how to use BC with cartesian / mesh less type solvers, i am currently trying to implement that ,its a matter of time , i do with it

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