Drag Force Calculation

Pratik More · August 13, 2022, 16:54

Hii i am trying to find the drag force on savonius turbine using 2d transient system. As the turbine is rotating constantly and the projected area is changing what should I put in reference values of area?

sjsivabharathy · August 23, 2022, 01:33

Hi Pratik,

The drag force acting on the turbine changes with rotation. If you are using varying
projected area you can't compare the coefficient with time. I would suggest you to use
planform area to non-dimensionalize the drag force for understanding the dynamics.
Thanks.

August 13, 2022, 16:54	Drag Force Calculation	#1
Pratik More New Member Pratik More Join Date: Aug 2022 Posts: 2 Rep Power: 0	Hii i am trying to find the drag force on savonius turbine using 2d transient system. As the turbine is rotating constantly and the projected area is changing what should I put in reference values of area?

August 23, 2022, 01:33		#2
sjsivabharathy New Member jawahar sivabharathy Join Date: Jan 2011 Posts: 12 Rep Power: 15	Hi Pratik, The drag force acting on the turbine changes with rotation. If you are using varying projected area you can't compare the coefficient with time. I would suggest you to use planform area to non-dimensionalize the drag force for understanding the dynamics. Thanks. HHOS likes this.

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