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-   -   how to simulate francis turbine and validate result (http://www.cfd-online.com/Forums/fluent/88475-how-simulate-francis-turbine-validate-result.html)

gusri1208 May 18, 2011 06:58

how to simulate francis turbine and validate result
 
Hello everyone,
I have designed a Francis turbine runner, with empirical method. One of steps of designing is to draw meridional flow field in 2-D. I have solved this by using Finite Difference Method (FDM) then by combining with conformal mapping method, i got the 3-D shape of runner. I must do a test to check if this method is acceptable, experimentally or numerically. Since experimentally impossible 4 me right now, i choose the second : Using Fluent.

My Questions :
1. How to perform the simulation [boundary condition, turbulence model to be used ..etc] ? in order to get the power output and efficiency

2. How to validate the result?

Please, help me, every reply would be appreciated.

Thank you very much.

ArslanOZCAN May 17, 2012 07:58

Hi;

I started to work on Francis turbine design but i got stuck. Can you send me document to do the analytical design of runner. And can you explain me the FDM and mapping method you used. I couldn't draw the streamlines in meridional view.

Waiting for your answer, best regards...

lodoc March 18, 2014 13:20

Quote:

Originally Posted by gusri1208 (Post 308124)
Hello everyone,
I have designed a Francis turbine runner, with empirical method. One of steps of designing is to draw meridional flow field in 2-D. I have solved this by using Finite Difference Method (FDM) then by combining with conformal mapping method, i got the 3-D shape of runner. I must do a test to check if this method is acceptable, experimentally or numerically. Since experimentally impossible 4 me right now, i choose the second : Using Fluent.

My Questions :
1. How to perform the simulation [boundary condition, turbulence model to be used ..etc] ? in order to get the power output and efficiency

2. How to validate the result?

Please, help me, every reply would be appreciated.

Thank you very much.

I'm starting to work with GAMM francis turbine, but I din't get the geometry data yet... please, could you help me? If you had the link, or the website, please, could you send it for me?
Thank you very much,
Lo


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