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-   -   reversed flow (https://www.cfd-online.com/Forums/fluent/46621-reversed-flow.html)

Mustafa Kemal Ä°ÅžMAN November 19, 2007 09:44

reversed flow
 
hi, i am studing about impinging air jet. i have a 2D model. but, fluent gives me "reversed flow" warning for all iteration. i have tried so many mesh structures, I extended my geometry but I couldnt solve this problem. What would you suggest to eliminate this problem?


Neil November 19, 2007 09:53

Re: reversed flow
 
Try initialising using a small velocity then steadily increase it to the desired value through out the solution.

Usman November 20, 2007 06:39

Re: reversed flow *NM*
 

Mustafa Kemal Ä°ÅžMAN November 20, 2007 09:36

Re: reversed flow
 
i have tried initialising using small velocity. reversed flow error disappeared. but after about 500 iteration it appeared again and reserved flow faces increased steadily.

emre turker November 27, 2007 01:15

Re: reversed flow
 
Merhaba MUstafa sanırım benim 2 sene önce yaptığım tez ile aynı konu üstünde çalışıyorsun bende MÄ°nogowa nın impinging jet testini fluentte uygulamaya çalışmıştım matlabdede çıkan sonucları karşılaÅŸtırmıştım ÅŸuan iÅŸteyim ama müsait olursam bu konuda sana yardımcı olmaya çalışırım.

Mustafa Kemal Ä°ÅžMAN November 27, 2007 04:52

Re: reversed flow
 
çok , sevinirim. çünkü denemediÄŸim bir durum kalmadı diye düÅŸünüyorum. kitlenmiÅŸ durumdayım. yardımlarınızı bekliyorum...

pulgarcito December 3, 2007 07:30

Re: reversed flow
 
Hi Mustafa and emre,

Could be interesting for somebody in the CFD community to understand your responses.

Sorry but I can not understand you if you do not post messages in english.

Thank you in advance.


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