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Mesh Reynolds Number Constraint

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Old   February 15, 2000, 08:51
Default Mesh Reynolds Number Constraint
  #1
Valdemir G. Ferreira
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Hi Dear Friends,

I would like to know how to determine the constrait on mesh Reynolds number (or Peclet number), for example, by using usual central difference approximations.

Thnak you very much.
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Old   February 19, 2000, 16:38
Default Re: Mesh Reynolds Number Constraint
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Bob Anderson
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I would refer you to Hirsch's CFD text Volume I. Note that you will have to specify a particular equation before you can get started on this problem.

Bob
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Old   February 20, 2000, 04:12
Default Re: Mesh Reynolds Number Constraint
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Valdemir G. Ferreira
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Thank You BOb,

I have been thinking in the following one-dimensional equation (Eliptic equation): C*Ux - v*Uxx = 0,where C is constante, and v is the kinematic viscosity of the fluid. By discretizing this equation in a particular point, we obtain one equation involving the coeficients (in 2D or 3D one system). So, the Mesh Reynolds Number Constrait appear when we resolve the discretized equation.
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