velocity profiles in x, y, and z directions (for open-channel flow)

Roule · September 7, 2015, 06:00

hi, i just have a simple question:

does the velocity profile in the y (vertical) and z (lateral) directions have the same shape as the velocity in the x direction (longitudinal)?

is the log law applicable in all the 3 directions, or only in the x-direction?
if they are different, can anyone give me the equations for the y, z directions.

or can anyone just recommend some journal paper or something which has more info. on this. wherever i search i am only getting the profile for x-direction.

thanks a lot :-)

FMDenaro · September 7, 2015, 06:40

Quote:

Originally Posted by Roule

hi, i just have a simple question:

does the velocity profile in the y (vertical) and z (lateral) directions have the same shape as the velocity in the x direction (longitudinal)?

is the log law applicable in all the 3 directions, or only in the x-direction?
if they are different, can anyone give me the equations for the y, z directions.

or can anyone just recommend some journal paper or something which has more info. on this. wherever i search i am only getting the profile for x-direction.

thanks a lot :-)

over a wall-bounded turbulen flow, the log law is only for the statistically averaged streamwise velocity component and the profile is represented along the normal-to-wall direction. The other velocity component tend to zero when statistically averaged.

Roule · September 7, 2015, 21:53

thanks a lot for the answer. solved a lot of other doubts :-)

September 7, 2015, 06:00	velocity profiles in x, y, and z directions (for open-channel flow)	#1
Roule New Member Join Date: Jul 2013 Posts: 28 Rep Power: 12	hi, i just have a simple question: does the velocity profile in the y (vertical) and z (lateral) directions have the same shape as the velocity in the x direction (longitudinal)? is the log law applicable in all the 3 directions, or only in the x-direction? if they are different, can anyone give me the equations for the y, z directions. or can anyone just recommend some journal paper or something which has more info. on this. wherever i search i am only getting the profile for x-direction. thanks a lot :-)

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September 7, 2015, 21:53		#3
Roule New Member Join Date: Jul 2013 Posts: 28 Rep Power: 12	thanks a lot for the answer. solved a lot of other doubts :-)