dear all plaese how can i get performance of axial turbine in CFX-post. i used macro calculater in cfx-post. but the results is not write.is there any different method to calculate the eff , power, torqou or any variable from cfx-post

hi first have you well set the information for the boundaries and parameters in the macro calculater ,and click calculate ,and view report,it should be so easy in this way!!! you can also use the turbo mode ,you have to initialise the components (initialise all components),click twice on rotor part and definbe all component and click initialise and calculate velocity components.you would fine all what you need in quantitative panel

i hope that it was helpfull

Input Power = ((Total Pressure in Stn Frame at Inlet)-(Total Pressure in Stn Frame at Outlet))*Discharge

Output Power = Torque on Runner Blades *2*pi*N/60

Efficiency = Output Power/Input Power

Each of the above terms in each power are need to be calculated using Function Calculator. Torque is also available in the function library.

In the option go to massflowavgabs and then calculate Total Pressure in Stn Frame for inlet as well as outlet.

Regards

Amit Roghs

Good one by amit.

In pre you prepare thse expressions. define monitor points in output control for these eqns. This will show their convergence in solver manager while running.and u can plot their output in Excel,also analyse them in post.

Kumar.