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

Forum: FLUENT March 1, 2016, 09:45

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran A pressure outlet imposes a uniform pressure... A pressure outlet imposes a uniform pressure distribution at the boundary (which is already fairly non-physical). This is also a common reason for backflow, because a pressure outlet is too close to...

Forum: FLUENT February 29, 2016, 10:27

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran So your geometric axis of symmetry is z-axis.... So your geometric axis of symmetry is z-axis. Gravity is in the x direction. Hence the flow cannot be cylindrically symmetric. Radial equilibrium is probably not applicable to your problem. The...

Forum: FLUENT February 27, 2016, 23:10

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran You cannot impose a "no back-flow" condition. You... You cannot impose a "no back-flow" condition. You generally don't want to either. If you have backflow where you don't expect there to be a backflow, it is a hint that something else is wrong...

Forum: FLUENT February 27, 2016, 15:42

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran You are not specifying that there is no outflow.... You are not specifying that there is no outflow. You are specifying that the total mass-flow only has to be so much. The local velocity there is a result of the simulation, calculated based on what...

Forum: FLUENT February 27, 2016, 15:22

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran Can you provide an example of how the solution... Can you provide an example of how the solution fails to meet the boundary condition? It depends! You have to remember that Fluent is FVM based and uses A/B/C for spatial discretization. ...

Forum: FLUENT February 27, 2016, 08:40

Replies: 15 Boundary Conditions Views: 2,244 Posted By LuckyTran You must specify the species in case there is... You must specify the species in case there is back-flow into the domain (and your outlet becomes an inlet). Otherwise, the backflow species is ignored if there is no backflow. At an "outlet" you...

Showing results 1 to 6 of 6

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