Questions about atmPlantCanopyTurbSource _OpenFOAM V2012

Jingxue Wang · January 18, 2022, 09:49

Hello,everyone!

I want to simulate the airflow around trees using OpenFOAM. I checked the codes of OpenFOAM V2012 and found the aerodynamic effects of trees can be treated by adding source terms to CFD equations using atmPlantCanopyUSource and atmPlantCanopyTurbSource. The atmPlantCanopyTurbSource can apply sources on either epsilon or omega to incorporate effects of plant canopy for atmospheric boundary layer modelling. But it seems not correcting the turbulence kinetic energy, namely k. I am very confused about this. Does anyboday have some idea for this?

Thanks！

https://www.openfoam.com/documentati...urbSource.html

https://www.openfoam.com/documentati...pyUSource.html

MMRC · May 28, 2024, 06:08

Hello!

I've been reviewing this fvOption and I also agreen with Jingxue Wang . The class atmPlantCanopyTurbSource looks to omit changes in TKE and what looks like the source term developed by Sogachev for TKE, here is assigned to epsilon. The Sogachev paper is 2006, later Dalpe & Masson in 2009 published almost the same formulas as Sogachev and is clearer than each turbulence field requires a source term.

January 18, 2022, 09:49	Questions about atmPlantCanopyTurbSource _OpenFOAM V2012	#1
Jingxue Wang Member Jingxue Wang Join Date: Sep 2017 Posts: 58 Rep Power: 9	Hello,everyone! I want to simulate the airflow around trees using OpenFOAM. I checked the codes of OpenFOAM V2012 and found the aerodynamic effects of trees can be treated by adding source terms to CFD equations using atmPlantCanopyUSource and atmPlantCanopyTurbSource. The atmPlantCanopyTurbSource can apply sources on either epsilon or omega to incorporate effects of plant canopy for atmospheric boundary layer modelling. But it seems not correcting the turbulence kinetic energy, namely k. I am very confused about this. Does anyboday have some idea for this? Thanks！ https://www.openfoam.com/documentati...urbSource.html https://www.openfoam.com/documentati...pyUSource.html

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Map of the OpenFOAM Forum - Understanding where to post your questions!	wyldckat	OpenFOAM	10	September 2, 2021 06:29
simpleCar with porous media - v2012 and OF8 simulations do not match	boffin5	OpenFOAM Running, Solving & CFD	0	August 7, 2021 16:36
General questions about how to mesh and build up my case	ThunderstruckGER	OpenFOAM	5	September 23, 2018 19:33
possible interview questions	atturh	Main CFD Forum	1	February 21, 2012 09:53
NACA0012 Validation Case Questions	ozzythewise	Main CFD Forum	3	August 3, 2010 15:39

May 28, 2024, 06:08		#2
MMRC Member María Rosales Join Date: Mar 2023 Location: Spain Posts: 48 Rep Power: 3	Hello! I've been reviewing this fvOption and I also agreen with Jingxue Wang . The class atmPlantCanopyTurbSource looks to omit changes in TKE and what looks like the source term developed by Sogachev for TKE, here is assigned to epsilon. The Sogachev paper is 2006, later Dalpe & Masson in 2009 published almost the same formulas as Sogachev and is clearer than each turbulence field requires a source term.