|
[Sponsors] |
December 31, 2004, 12:23 |
Periodic Surface in CFX-BLADEGEN
|
#1 |
Guest
Posts: n/a
|
Hello every one I have measured dimension of a blade of an axial flow pump. Next, send the data to CFX-BladeGen pass Data Import menu and transfer Data Set into a BladeGen Model. Then, start BladeGenPlus by selected the button on toolbar but BG show me an error " Invalid CFX-BladeGen geometry periodic surface ordering is reverse". What is cause of an error? Ali
|
|
December 31, 2004, 12:38 |
Re: Periodic Surface in CFX-BLADEGEN
|
#2 |
Guest
Posts: n/a
|
It may caused by inconsistence between measured setup and BladeGen model on rotating direction and axis of pump.
|
|
December 31, 2004, 17:56 |
Re: Periodic Surface in CFX-BLADEGEN
|
#3 |
Guest
Posts: n/a
|
Hi Gang, Thanks for reply...Changing the rotation axis didn't work. Change the flow direction worked but it gave a wrong flow direction. Ali
|
|
January 4, 2005, 13:15 |
Re: Periodic Surface in CFX-BLADEGEN
|
#4 |
Guest
Posts: n/a
|
When you open your BG model, is the flow direction correct in the upper left window? In other words, is the flow direction arrow pointing from inlet to outlet of domain?
|
|
January 4, 2005, 13:21 |
Re: Periodic Surface in CFX-BLADEGEN
|
#5 |
Guest
Posts: n/a
|
Yes. When I made the model using BG the arrow points from inlet to outlet. When I want to transfer it BG+ I must modify the direction!! This gives wrong flow direction and names in the mesh. thank you.. and happy new year.. Ali
|
|
January 5, 2005, 12:00 |
Re: Periodic Surface in CFX-BLADEGEN
|
#6 |
Guest
Posts: n/a
|
Is the blade rotating direction correct when you create BG model from measured data? For example, if flow is coming from left to right in your upper left window and pump is rotating in negative Z-direction, your blade pressure surface should face up in your upper right window. Here assume rotating axis is on Z-axis when you measure blade geometry. Another way to check whether blade orientation and rotating direction are right or not is to use animation. Once you show 3D view in your upper right window, right click mouse will bring up popup menu and select animate.
|
|
January 8, 2005, 10:27 |
Re: Periodic Surface in CFX-BLADEGEN
|
#7 |
Guest
Posts: n/a
|
Try to change span direction - sometimes this works...
|
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
User surface creation in CFX post | Vicky88 | CFX | 3 | January 28, 2011 05:34 |
Surface Group Problem in CFX | krrishcfd | CFX | 0 | March 18, 2010 05:38 |
CFX bubble simulation with free surface model | adma | CFX | 6 | February 3, 2006 11:17 |
CFX 4.4 New free surface option | Michael Rasmussen | CFX | 3 | October 5, 2001 13:24 |
CFX 5.5 | Roued | CFX | 1 | October 2, 2001 16:49 |