[Mondal131211]

Hi Foamers,

I hope you are doing well. Currently, I am experiencing a problem of initializing the turbulent kinetic energy and turbulent dissipation of the k-omegaSST model for a pure natural convection case. I have a heated isothermal vertical plate inside a large computational domain. In order to solve this problem, I am using buoyantPimpleFoam (OpenFOAM v3.0.1). I know when I have inlet velocity I can easily calculate turbulent kinetic energy (k=3/2(IU)^2). But for pure natural convection (no inlet velocity, only buoyancy-driven flow), what is the assumption to calculate k? What will be the velocity U in that case?

Please help me to figure out this issue.

Cheers
Razon

[Mondal131211]

Originally Posted by Mondal131211

Hi Foamers,

I hope you are doing well. Currently, I am experiencing a problem of initializing the turbulent kinetic energy and turbulent dissipation of the k-omegaSST model for a pure natural convection case. I have a heated isothermal vertical plate inside a large computational domain. In order to solve this problem, I am using buoyantPimpleFoam (OpenFOAM v3.0.1). I know when I have inlet velocity I can easily calculate turbulent kinetic energy (k=3/2(IU)^2). But for pure natural convection (no inlet velocity, only buoyancy-driven flow), what is the assumption to calculate k? What will be the velocity U in that case?

Please help me to figure out this issue.

Cheers
Razon

Any helps regarding this issue?