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Showing results 1 to 6 of 6 Search took 0.00 seconds. Search: Posts Made By: LuckyTran

Forum: FLUENT May 9, 2012, 11:30

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran You are completely wrong, did you even read my... You are completely wrong, did you even read my post? Just make sure you have enough grid points spanning the boundary layer, i.e. really fine mesh near walls. This is taken care of during...

Forum: FLUENT May 8, 2012, 22:54

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran The "low reynolds number" box is an additional... The "low reynolds number" box is an additional damping on the turbulent viscosity to increase the accuracy of the model for low Reynolds number flows, it has nothing to do with wall functions. So the...

Forum: FLUENT May 5, 2012, 14:27

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran That just means your solution is having trouble... That just means your solution is having trouble obeying mass conservation. That has nothing to do with the physical fact that mass is conserved.

Forum: FLUENT May 4, 2012, 12:08

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran For fluid flows, mass continuity must be... For fluid flows, mass continuity must be conserved always (it is built into the assumptions of the fluid model). A closed domain simplifies even further the mass balance as there are no advection...

Forum: FLUENT May 3, 2012, 12:25

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran Most of the flow is laminar, only a small portion... Most of the flow is laminar, only a small portion of it is in the transition region correct? The RNG models are fully turbulent models with low Reynolds number corrections, they are not trasitional...

Forum: FLUENT May 3, 2012, 10:52

Replies: 18 Turbulence model & y+ for Natural convection Views: 10,561 Posted By LuckyTran if there is laminar to turbulent transition... if there is laminar to turbulent transition you'll need to use the transitional SST or equivalent. rke won't work in that case. But are you sure it will transition to a turbulent boundary layer? For...

Showing results 1 to 6 of 6

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