CFD Online Discussion Forums

CFD Online Discussion Forums (https://www.cfd-online.com/Forums/)
-   FLUENT (https://www.cfd-online.com/Forums/fluent/)
-   -   3D simulation of vertical axis helical turbine (https://www.cfd-online.com/Forums/fluent/157956-3d-simulation-vertical-axis-helical-turbine.html)

TKP August 12, 2015 01:43
3D simulation of vertical axis helical turbine
 
Presently I am doing 3d transient simulation on vertical axis helical water turbine. But I am getting NEGATIVE Cm value. please help me out. Again I am calculating Cm from the mean Cm at different time steps that has been saved in txt. format.

like.no.other August 21, 2015 06:03
Quote:
Originally Posted by TKP (Post 559215)
Presently I am doing 3d transient simulation on vertical axis helical water turbine. But I am getting NEGATIVE Cm value. please help me out. Again I am calculating Cm from the mean Cm at different time steps that has been saved in txt. format.
Hi

please check your vector direction in post processing the torque coefficient
also turbulence model is very importance in VAWT


All times are GMT -4. The time now is 04:01.