Wind Stress and Equivalent Velocity

Naviercito · April 23, 2013, 06:54

Hi,

i am suppose to apply wind stress over the free surface in a simulation. That stress will generate velocity, my question is: can i just apply and equivalent velocity ? For example with the formula:

$u_{\tau}$ = $\sqrt{\tau_{w}/\rho}$

where $u_{\tau}$ is the velocity at the free surface , $\rho$ is the density and $\tau_{w}$ the wind stress applied.

FMDenaro · April 23, 2013, 07:11

yes, see also J. Fluid Mech. (2003), vol. 495, pp. 343–368

Naviercito · April 23, 2013, 07:30

The publication is:

Large-eddy simulations of the wind-induced turbulent Ekman layer ?

Thanks for your answer

FMDenaro · April 23, 2013, 07:31

that's correct

April 23, 2013, 06:54	Wind Stress and Equivalent Velocity	#1
Naviercito New Member VPerez Join Date: Apr 2013 Posts: 6 Rep Power: 12	Hi, i am suppose to apply wind stress over the free surface in a simulation. That stress will generate velocity, my question is: can i just apply and equivalent velocity ? For example with the formula: $u_{\tau}$ = $\sqrt{\tau_{w}/\rho}$ where $u_{\tau}$ is the velocity at the free surface , $\rho$ is the density and $\tau_{w}$ the wind stress applied.

April 23, 2013, 07:11		#2
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,764 Rep Power: 71	yes, see also J. Fluid Mech. (2003), vol. 495, pp. 343–368

April 23, 2013, 07:30		#3
Naviercito New Member VPerez Join Date: Apr 2013 Posts: 6 Rep Power: 12	The publication is: Large-eddy simulations of the wind-induced turbulent Ekman layer ? Thanks for your answer

April 23, 2013, 07:31		#4
FMDenaro Senior Member Filippo Maria Denaro Join Date: Jul 2010 Posts: 6,764 Rep Power: 71	that's correct