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 May 20, 2001, 22:42 Adams-bashforth scheme #1 tony Guest   Posts: n/a hi,there, I have a problem about the upwind or hybrid scheme,I want to extend my code(central difference for all space derivatives) to fluid field including separation,now,I use Adams-bashforth for the convective terms[i.e.,du/dx(t+1)=3/2(du/dx(t))-1/2(du/dx(t-1))],I wonder,if I can use upwind or hybrid scheme for du/dx(t) and du/dx(t-1) to evaluate du/dx(t+1)?here,t is the time step. thanks

 May 21, 2001, 06:55 Re: Adams-bashforth scheme #2 Sebastien Perron Guest   Posts: n/a Yes you can. But, why don't you use the conservative form of the equations? I find it easier to upwind the equations written in conservative form, specially for FVM methods.

April 13, 2020, 19:51
Excuse me， how can set Adams-Bashforth scheme in the fluent？
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dega
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Quote:
 Originally Posted by tony ;14806 hi,there, I have a problem about the upwind or hybrid scheme,I want to extend my code(central difference for all space derivatives) to fluid field including separation,now,I use Adams-bashforth for the convective terms[i.e.,du/dx(t+1)=3/2(du/dx(t))-1/2(du/dx(t-1))],I wonder,if I can use upwind or hybrid scheme for du/dx(t) and du/dx(t-1) to evaluate du/dx(t+1)?here,t is the time step. thanks
Excuse me， how can set Adams-Bashforth scheme in the fluent？