boundedness -- CFD Online Discussion Forums

August 1, 2007, 10:49	boundedness	#1
Jorn Guest Posts: n/a	In an FSI simulation where I pump water with solute (additional variable) through a channel structure I get negative concentrations if the time step is too high. I'm using high resolution scheme, 2nd order backward Euler. I was just wondering if there are other things I could do to avoid negative conc. besides decreasing the time-step? Thanks

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