how to decide the shroud and hub line

March 21, 2003, 05:49

hi: i want to know how to decide the shroud and hub line in numeca?

March 26, 2003, 16:46

Hello Angel,

The choice should be based on the machinery being simulated. If the definitions of hub and shroud are not completely straight-forward (e.g., a return channel) they may be set arbitrarily.

Best regards, Allan

March 27, 2003, 22:49

Dear Allan thanks for your answer i input the shroud data with the format of: shroud ZR polyline

but the results display several shroud lines not one shroud line expected in the multistages-turbine,if i only figure one stage,there is not the phenomenon,should i change the input format?

March 28, 2003, 16:42

I think the best thing to do at this point would be to send your AutoGrid template file to your local NUMECA support office. It may be just a formating error. You might double check the template description in the AutoGrid manual.

Best regards, Allan

April 1, 2003, 03:39

Dear Angel: I think you are a user in China. NUMECA-BEIJING is now working for the supports of all users located in China. We are ready for any support requests from legal users at any time. So please do not hesitate to contact us directly with: support@numeca-beijing.com if it's possible for you.

Best regards

QI

March 21, 2003, 05:49	how to decide the shroud and hub line	#1
angel Guest Posts: n/a	hi: i want to know how to decide the shroud and hub line in numeca?

March 26, 2003, 16:46	Re: how to decide the shroud and hub line	#2
Allan D. Grosvenor Guest Posts: n/a	Hello Angel, The choice should be based on the machinery being simulated. If the definitions of hub and shroud are not completely straight-forward (e.g., a return channel) they may be set arbitrarily. Best regards, Allan

March 27, 2003, 22:49	Re: how to decide the shroud and hub line	#3
angel Guest Posts: n/a	Dear Allan thanks for your answer i input the shroud data with the format of: shroud ZR polyline but the results display several shroud lines not one shroud line expected in the multistages-turbine,if i only figure one stage,there is not the phenomenon,should i change the input format?

March 28, 2003, 16:42	Re: how to decide the shroud and hub line	#4
Allan D. Grosvenor Guest Posts: n/a	I think the best thing to do at this point would be to send your AutoGrid template file to your local NUMECA support office. It may be just a formating error. You might double check the template description in the AutoGrid manual. Best regards, Allan

April 1, 2003, 03:39	Re: how to decide the shroud and hub line	#5
NUMECA-BEIJING Guest Posts: n/a	Dear Angel: I think you are a user in China. NUMECA-BEIJING is now working for the supports of all users located in China. We are ready for any support requests from legal users at any time. So please do not hesitate to contact us directly with: support@numeca-beijing.com if it's possible for you. Best regards QI

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Autogrid: discontinuity of 90 degrees in shroud	Eric Joubarne	Fidelity CFD	1	July 21, 2009 05:34
specifying tip clearance at the shroud	Mohammad	CFX	1	December 25, 2008 08:06
Turbogrid Shroud-Hub Mesh Measure Limits. Turbine	Santiago Orrego.	CFX	0	July 27, 2007 14:30
Hub-to-Shroud Diagramm	Arianna	CFX	0	April 17, 2007 12:01
how to decide viscosity for DNS	Jen	Main CFD Forum	3	January 22, 2003 09:13