How to achieve homogeneous vertical profile for turbulence -- CFD Online Discussion Forums

August 16, 2021, 13:52

How to achieve homogeneous vertical profile for turbulence

saugatshr4

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Saugat Shrestha

Join Date: Dec 2019

Location: Thailand

Posts: 27

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Hello,

I am working on turbulence modeling of the Atmospheric Boundary Layer. Here I have been able to maintain a homogeneous wind velocity profile. However, I have been unable to maintain a homogeneous profile for tubrulence.

I have given a manual input for the Turbulent Kinetic energy (TKE). It seems that the TKE seems to dissipate very early in the domain and doesn't travel the domain. I have attached a picture of the TKE in the along wind direction of the domain.

FYI, I'm trying to implement a k-epsilon model.

Can anybody please help me. I have been stuck in this problem for a long time.

I will be very grateful for your help.

Thank You.

With best regards,
Saugat

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Tags

boundary layer, k-epsilon model, turbulent kinetic energy

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