|
[Sponsors] |
![]() |
![]() |
#1 |
New Member
Nikhil Bhat
Join Date: Mar 2012
Posts: 8
Rep Power: 14 ![]() |
I am trying to model a jet fan being installed in a room. I want to study the flow of the fan coming out of the outlet (basically the development of streamlines). The walls of the room are modelled as “Pressure Outlet” boundary condition as they are vented to the atmosphere. The fan is modelled as a simple cylinder with Inlet (Velocity Inlet velocity = 4 m/sec), Outlet (Pressure outlet) and a fan interior face as shown in figure. Please see "Domain Specification.jpeg"
The fan interior specification dialog box is shown in "Domain Specification.jpeg". It has been kept simple to get some initial flow However when I run my simulation, continuity diverges as shown in "Residuals.jpeg". I am not sure why this is happening. Any help is appreciated. Thanks in advance |
|
![]() |
![]() |
![]() |
![]() |
#2 |
Member
Join Date: Mar 2017
Posts: 61
Rep Power: 9 ![]() |
do you really need poutlet at fan exit, i dont think so.
think like this you have fan with some mass flow inside for feeding fan, you are adding fan interior because you need mimicking the behaviour of fan that you dont want to make things complex with rotating frames and sliding meshes, that is ok. then air comes from fan interior just open through athmosphere which is poutlet. |
|
![]() |
![]() |
![]() |
Tags |
fan bc, streamlines |
|
|
![]() |
||||
Thread | Thread Starter | Forum | Replies | Last Post |
sliding mesh problem in CFX | Saima | CFX | 46 | September 11, 2021 07:38 |
Ansys fluent Boundary condition help | rajasekhar reddy | FLUENT | 3 | March 11, 2020 02:55 |
Problem in setting Boundary Condition | Madhatter92 | CFX | 12 | January 12, 2016 04:39 |
Radiation interface | hinca | CFX | 15 | January 26, 2014 17:11 |
RPM in Wind Turbine | Pankaj | CFX | 9 | November 23, 2009 04:05 |