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chchong001 September 18, 2017 04:31

Critical Heat Flux in a Pipe
 
3 Attachment(s)
Hello,I have some problems about" Fluid Dynamics Verification Manual" VMFL067 Boiling in a Pipe-Critical Heat Flux,the problem described as follow Figures .I have just simulated the case base on the introduction,and all the conditions and models are consistent,the inlet temperature is 555k. but I can not get the same result.I used the Boiling model-critical heat flux,turbenlent model:RNG k-e.The calculated wall temperature distribution show as follow figure.Have someone ever done this case? Beg for your help! Thank you!

yun_cn December 20, 2017 00:07

Get the case file from Ansys's home page and check the settings in the model. There are a lot of settings you have to carefully select.

chchong001 December 20, 2017 01:11

Quote:

Originally Posted by yun_cn (Post 675641)
Get the case file from Ansys's home page and check the settings in the model. There are a lot of settings you have to carefully select.

thanks for your reply,but I can't get the file in ansys home,if you have the case could you send it to my email.chchong001@sina.com.thank you!

yun_cn December 20, 2017 18:55

You can obtain it directly from Ansys support if you are a user of Ansys Fluent. Ask your local Fluent service to get a support services ID.

chchong001 December 20, 2017 21:02

Quote:

Originally Posted by yun_cn (Post 675751)
You can obtain it directly from Ansys support if you are a user of Ansys Fluent. Ask your local Fluent service to get a support services ID.

thanks,but I forget the ID and I couldn't get it now,could you help me to download the file?my E-mail :chchong001@sina.com

yun_cn December 21, 2017 03:50

Check your mail, please.

blue-sky December 22, 2017 02:38

Quote:

Originally Posted by chchong001 (Post 675759)
thanks,but I forget the ID and I couldn't get it now,could you help me to download the file?my E-mail :chchong001@sina.com

i am also meeting the same problem. and my result isn't similar with the data.should you send the case for me?
my e-mile:401236355@qq.com
thanks

blue-sky December 22, 2017 02:45

Quote:

Originally Posted by yun_cn (Post 675777)
Check your mail, please.

i am also meeting the same problem. and my result isn't similar with the data.should you send the case for me?
my e-mile:401236355@qq.com
thanks

osmbln February 9, 2018 14:00

Hello for every one, I also trying to model a channel analysis in which the water enters subcooled and then a want to simulate the critical heat flux conditions. Before this simulation I solved the two phase boiling problem which has about 0.6 outlet void fraction. For water and vapor phases I entered the material properties by hand.
I want to ask, do I need to follow same methodology for material property manupulation in CHF simulation. If yes, how?

Also, the e-mailed files may help me, would you please send they to me?
e-mail: osman.bilen@hotmail.com


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