Ship wave making resistance calculation

Tayyaba · July 17, 2012, 03:29

Hi!

I want to know 'Is it possible to calculate ship wave making resistance and viscous resistance separately using STAR-CCM+?'

Waiting for a king response

Thanks in advance

lava12005 · July 17, 2012, 05:41

What you can calculate individually is the resistance due to pressure and resistance due to pressure individually. If the resistance that you need (wave making) can be represented mathematically by pressure and shear stress then yes you can extract it.

But unfortunately (as far as I know and please correct me if I am wrong

) there is no such representation of wave making resistance. Since integrating the pressure = pressure drag is not the same as Wave making resistance right?

Tayyaba · July 20, 2012, 07:06

Dear Sir;

Thank you so much for your useful advice.

Sir as far as i know, i agree with you that integrating the pressure = pressure drag is not the same as Wave making resistance.

Thank you once again for your help.

July 17, 2012, 03:29	Ship wave making resistance calculation	#1
Tayyaba New Member Tayyaba Join Date: Jul 2012 Posts: 4 Rep Power: 14	Hi! I want to know 'Is it possible to calculate ship wave making resistance and viscous resistance separately using STAR-CCM+?' Waiting for a king response Thanks in advance

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July 17, 2012, 05:41		#2
lava12005 Senior Member KHB Join Date: Aug 2010 Location: Singapore Posts: 118 Rep Power: 16	What you can calculate individually is the resistance due to pressure and resistance due to pressure individually. If the resistance that you need (wave making) can be represented mathematically by pressure and shear stress then yes you can extract it. But unfortunately (as far as I know and please correct me if I am wrong ) there is no such representation of wave making resistance. Since integrating the pressure = pressure drag is not the same as Wave making resistance right?

July 20, 2012, 07:06		#3
Tayyaba New Member Tayyaba Join Date: Jul 2012 Posts: 4 Rep Power: 14	Dear Sir; Thank you so much for your useful advice. Sir as far as i know, i agree with you that integrating the pressure = pressure drag is not the same as Wave making resistance. Thank you once again for your help.