Convective boundary condition -- CFD Online Discussion Forums

May 24, 2002, 10:48	Convective boundary condition	#1
STN Guest Posts: n/a	Dear all... I'm try to introduce convective BC, d(Phi)/dt + Uc*d(Phi)/dX = 0.0, in to my 3D-transient code. My code based on SIMPLE with staggered grid arrangement. The problem is : solution is not converge when Convective BC is used. The simulation starts with stagnant fluid at t=0. But ths code works well for the same problem when zero gradient, d(Phi)/DX = 0.0, is applied. Any idea or suggestion is very please to me. Thank you very much

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