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Any method to strech the domain to infinity?

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Old   August 28, 2009, 12:25
Default Any method to strech the domain to infinity?
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I am simulating a flat plane boundary layer flow.
I want to set the outflow boundary at infinity. I have tried to use the grid transformation methods of Roberts (1971), but it seems that the streching leads to instabilty in my code.

So is there any good method to strech the domain to infinity?

Thank you in advance.
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Old   August 28, 2009, 23:41
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If stretching causes instability in your code, there is a problem with numerical method (central difference for convection?, whats outflow BC?). So I would advice you to first analyze other possible options for your error.
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Old   August 29, 2009, 00:53
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OK. I see what you mean. Thank you so much.

Last edited by hadesmajesty; August 29, 2009 at 04:04.
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