CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT

Multi-reference frame-2D Turbine Rotor

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   November 2, 2018, 19:34
Default Multi-reference frame-2D Turbine Rotor
  #1
New Member
 
Join Date: Nov 2018
Posts: 8
Rep Power: 8
Muhammad Asim Sarwar is on a distinguished road
Hi,

I am working on a 2D rotor blade profile. I have created three cell zones.Starting from the left direction I named them part 1,part 2 and part 3.The rotational speed is 74.6 rad/sec (712 rpm)for part 2 while the remaining two of them are stationary.It's a transient simulation with fractional step method.

Inside the cell zone condition, i have selected the frame motion for part 2(rotor cell zone) and additionally, I have opted for moving wall as shown below which is at a zero relative velocity with reference to the adjacent cell zone

When I am post processing the result for the resultant streamlines,I cannot see swirl on the exit of the rotor.Also,the moving wall as selected doesn't seems to move with time.What i am getting instead are straight streamlines.

Could you please tell me how do i resolve this issue of non-moving wall and no exit swirl.Additionally, I am also getting reverse flow conditions at the pressure inlet and outlet faces.



Thank you
Attached Images
File Type: jpg Geom.jpg (35.9 KB, 4 views)
File Type: png Cell zone condition.PNG (36.5 KB, 3 views)
File Type: jpg Contact regions.jpg (91.0 KB, 3 views)
File Type: png Moving wall BC.PNG (37.8 KB, 2 views)
File Type: png Rotor Result.png (103.4 KB, 4 views)
Muhammad Asim Sarwar is offline   Reply With Quote

Reply

Tags
frame of reference, gas turbine blade, multi reference frame, rotor blade

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Setting the height of the stream in the free channel kevinmccartin CFX 12 October 13, 2022 22:43
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 06:21
Simulation of a single bubble with a VOF-method Suzzn CFX 21 January 29, 2018 01:58
Difficulty in calculating angular velocity of Savonius turbine simulation alfaruk CFX 14 March 17, 2017 07:08
CFD analysis on wind turbine rotor Ken (Wind Turbine CFD Super Rookie) Main CFD Forum 45 February 9, 2016 15:07


All times are GMT -4. The time now is 03:20.