how to get exact vale of lift/drag coefficient

saurabh.deshpande88 · January 31, 2010, 14:16

Hi everyone,

I am a beginner in the field of CFD. currently analyzing flow around an airfoil at different angles of attacks using FLUENT.

I want to plot graph of 'lift/drag coefficient' vs 'angle of attack'. But i don't know how to get exact value of lift/drag coefficient.

From the graph of 'lift coefficient vs iterations' i do get some idea about its value but not the exact value.

Please help. Thanks in advance

khor_albert · January 31, 2010, 16:44

You can get the values from the main console if you select the right settings (should be by default) . Check Solve --> Monitors --> Force ... then under lift and drag, make sure the option 'Print' is checked besides 'Plot'. The values should be 'printed' in the main console as the iteration is underway.

saurabh.deshpande88 · January 31, 2010, 23:48

Thanks man. your suggestion helped.. i got it. thanks again!!

January 31, 2010, 14:16	how to get exact vale of lift/drag coefficient	#1
saurabh.deshpande88 New Member saurabh deshpande Join Date: Jan 2010 Posts: 4 Rep Power: 16	Hi everyone, I am a beginner in the field of CFD. currently analyzing flow around an airfoil at different angles of attacks using FLUENT. I want to plot graph of 'lift/drag coefficient' vs 'angle of attack'. But i don't know how to get exact value of lift/drag coefficient. From the graph of 'lift coefficient vs iterations' i do get some idea about its value but not the exact value. Please help. Thanks in advance

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January 31, 2010, 16:44		#2
khor_albert New Member Khor Yee Shin Join Date: Jan 2010 Location: Glasgow UK Posts: 6 Rep Power: 16	You can get the values from the main console if you select the right settings (should be by default) . Check Solve --> Monitors --> Force ... then under lift and drag, make sure the option 'Print' is checked besides 'Plot'. The values should be 'printed' in the main console as the iteration is underway.

January 31, 2010, 23:48		#3
saurabh.deshpande88 New Member saurabh deshpande Join Date: Jan 2010 Posts: 4 Rep Power: 16	Thanks man. your suggestion helped.. i got it. thanks again!!