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Scaling the mesh in FLUENT and its possible consequences

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Old   May 2, 2016, 15:16
Post Scaling the mesh in FLUENT and its possible consequences
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Mario Alberto
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Hello,

What would it be the consequence of scaling a mesh 10 times in FLUENT? Does it affect the convergence or the time of convergence?
As I understand, the amount of cells, aspect ratio and the rest of the mesh characteristics should remain the same, therefore the time of the calculation should be the same. Am I right?

I am running some simulations of heat transfer effect on aerodynamic performance of airfoils. So far, I've worked only with 2 meter chord airfoils, but I'd like to study the same effect in smaller airfoils (down to a 20 cm airfoils).

Any insight into this would be welcome. Thanks in advance!
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Old   May 2, 2016, 15:27
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Quote:
Originally Posted by mrwts View Post
Hello,

What would it be the consequence of scaling a mesh 10 times in FLUENT? Does it affect the convergence or the time of convergence?
As I understand, the amount of cells, aspect ratio and the rest of the mesh characteristics should remain the same, therefore the time of the calculation should be the same. Am I right?

I am running some simulations of heat transfer effect on aerodynamic performance of airfoils. So far, I've worked only with 2 meter chord airfoils, but I'd like to study the same effect in smaller airfoils (down to a 20 cm airfoils).

Any insight into this would be welcome. Thanks in advance!

if you scale only the lenght, the Reynolds number scales accordingly and the physics is different
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Old   May 3, 2016, 03:54
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...which in turn will affect convergence behavior and simulation time.
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airfoils, fluent, heat transfer, scale

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