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Forum: Main CFD Forum

June 13, 2013, 05:10

Replies: 11

How to decide the number of grid lines in boundary layer

Views: 2,794

Posted By Anna Tian

I think usually the boundary layer thickness...

I think usually the boundary layer thickness doesn't strongly depend on whether the flow is compressible or incompressible. Y+ can be defined for laminar flow but doesn't make too much sense. We can...

Forum: Main CFD Forum

January 26, 2013, 09:42

Replies: 11

How to decide the number of grid lines in boundary layer

Views: 2,794

Posted By Anna Tian

It's a very simple case. Just laminar flow go...

It's a very simple case. Just laminar flow go through a rectangular pipe. But there's a 90 degree turning in the middle. There's nothing about heat transfer. Do I need to consider Y+ for laminar...

Forum: Main CFD Forum

January 25, 2013, 16:20

Replies: 11

How to decide the number of grid lines in boundary layer

Views: 2,794

Posted By Anna Tian

Thanks. May I ask another question? If I use...

Thanks. May I ask another question?

If I use laminar model(no model), do I need to have Y+ smaller or equal to 1?

Thank you.

Forum: Main CFD Forum

January 24, 2013, 16:08

Replies: 11

How to decide the number of grid lines in boundary layer

Views: 2,794

Posted By Anna Tian

Could you please recommend any paper about this?

Could you please recommend any paper about this?

Forum: Main CFD Forum

January 20, 2013, 16:21

Replies: 11

How to decide the number of grid lines in boundary layer

Views: 2,794

Posted By Anna Tian

How to decide the number of grid lines in boundary layer

Hi,

May I ask how to decide how many grid lines(at the direction proportional to the wall) do I need(to resolve boundary layer well)?

Of course grid independence study is always good practice....

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