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Old   July 7, 2008, 14:58
Default Spatial &Temporal differencing scheme impingingjet
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NewBee
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Hi, I am using HLLC second order upwind spatial discretization scheme for solving supersonic jet impingement problem. My question is regarding the temporal disretization, how do Know which is more appropriate? point jacobi, Gauss-Siedel, Mac-Cormak; R-K? Also where does TVD come in play?

Please help. Thanks

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Old   July 9, 2008, 14:47
Default Re: Spatial &Temporal differencing scheme impingin
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NewBee
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Anyone ...please help

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Old   July 15, 2008, 00:40
Default Re: Spatial &Temporal differencing scheme impingin
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jinwon park
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How about the Runge-Kutta schemes?
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Old   July 16, 2008, 12:57
Default Re: Spatial &Temporal differencing scheme impingin
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Hi Jinwon Thanks for the reply. But how do I choose an appropriate temporal scheme? Do you think Runge-Kutta is a better option? And where does TVD come in?

Thanks

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Old   July 16, 2008, 13:23
Default Re: Spatial &Temporal differencing scheme impingin
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jinwon park
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In the literature, RK schemes are often recommended to ensure the TVD property. As you may know, the TVD is a numerical property, not a specific technique. There are a great variety of time schemes. I could not say that the RK scheme is the best since it is depending on the requirement.
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