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Search: Posts Made By: Martin Hegedus
Forum: Main CFD Forum May 1, 2013, 12:57
Replies: 8
Views: 1,872
Posted By Martin Hegedus
Cd is calculated by dividing the force in the x...

Cd is calculated by dividing the force in the x direction by the dynamic pressure and the base area (diameter*length). In the real world, the drag will be unsteady so it is an averaged value. At...
Forum: Main CFD Forum May 1, 2013, 05:42
Replies: 8
Views: 1,872
Posted By Martin Hegedus
Don't know what it should be for the k-e model. ...

Don't know what it should be for the k-e model. But, the separation point (angle) seems to be too high. At these Re numbers, I believe, a SA model will give separation at about 80 degrees. What is...
Forum: Main CFD Forum April 30, 2013, 21:57
Replies: 8
Views: 1,872
Posted By Martin Hegedus
For something so simple, this flow can be...

For something so simple, this flow can be challenging to model. A significant portion of the drag is coming from pressure drag, therefore the turbulent wake must be modeled correctly. This usually...
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