Cfd analysis of 3 blade water turbine

basilsunnym · September 5, 2015, 02:44

Hello everyone,
I am a third year mechanical engineering student. I am working on a 3 blade horizontal axis water turbine. I choose fluent for the fluent cfd for my analys.

Turbine specs

profile: NACA 0015
Length : 1.5m
dia : 1.25m
chord length: 160mm

I have regenerated a sliding mesh analysis for the rotor.

I would like to know the procedure for the calculation for torque.

Should i take the moments result from the rotor analysis?
What is the ideal value of Cl?

Else should i stimulate only a single profile and calculate the Cl value at each angle to obtain the force and torque from it?

I am confused and have no references left.

Kindly guide me.

george_chinezul · September 6, 2015, 03:47

have a look here at this tutorial
https://confluence.cornell.edu/pages...geId=262012971

basilsunnym · September 6, 2015, 04:10

Sir, thank u for the feedback. But is it right to relate between a wind mill and a helical water turbine?

September 5, 2015, 02:44	Cfd analysis of 3 blade water turbine	#1
basilsunnym New Member Basil Join Date: Sep 2015 Posts: 2 Rep Power: 0	Hello everyone, I am a third year mechanical engineering student. I am working on a 3 blade horizontal axis water turbine. I choose fluent for the fluent cfd for my analys. Turbine specs profile: NACA 0015 Length : 1.5m dia : 1.25m chord length: 160mm I have regenerated a sliding mesh analysis for the rotor. I would like to know the procedure for the calculation for torque. Should i take the moments result from the rotor analysis? What is the ideal value of Cl? Else should i stimulate only a single profile and calculate the Cl value at each angle to obtain the force and torque from it? I am confused and have no references left. Kindly guide me.

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September 6, 2015, 03:47		#2
george_chinezul New Member Join Date: Jun 2015 Posts: 1 Rep Power: 0	have a look here at this tutorial https://confluence.cornell.edu/pages...geId=262012971

September 6, 2015, 04:10		#3
basilsunnym New Member Basil Join Date: Sep 2015 Posts: 2 Rep Power: 0	Sir, thank u for the feedback. But is it right to relate between a wind mill and a helical water turbine?