Wave simulation in CFX

cfdesf1990 · November 23, 2015, 08:19

Thank you so much. Actually, my first question came to my mind when I compared the input velocity way and moving wall way. Because in the moving wall, the given wall just move in the x direction and there is not any w velocity change?
So why we must use wvel=exp(0.4z)*cos(2t) ????????

ghorrocks · November 23, 2015, 17:06

You quoted this equation so you are in a better position than me to know.

But I suspect it is because water waves are caused by a circular motion of the water. This means it requires motion in the vertical direction as well as the wave propagation direction.

November 23, 2015, 17:06		#22
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,854 Rep Power: 144	You quoted this equation so you are in a better position than me to know. But I suspect it is because water waves are caused by a circular motion of the water. This means it requires motion in the vertical direction as well as the wave propagation direction. cfdesf1990 likes this.

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November 23, 2015, 08:19		#21
cfdesf1990 New Member Fluidflow Join Date: Oct 2015 Posts: 24 Rep Power: 11	Thank you so much. Actually, my first question came to my mind when I compared the input velocity way and moving wall way. Because in the moving wall, the given wall just move in the x direction and there is not any w velocity change? So why we must use wvel=exp(0.4z)*cos(2t) ????????