[Nek5000-users] Reynolds number setting in the turbChannel example

[nek5000-users at lists.mcs.anl.gov]

Hello Neks


I am a new user of Nek5000 and my long term objective is to develop and implement some LES models in NEK5000. Now I am working with the turbChannel example.


I want to make sure that the original parameter setting in the example is corresponding to Re_tau = 590 ? When the Reynolds number (p02) is set to 10935, my results show that the Re_tau is lower than 590.


The second question is that, if I want to simulate Re_tau = 180 case, what the Reynolds number (p02) should be? My understanding is that since the U_bar in the turbChannel is equal to 1, the the Reynolds number (p02) should be 2800, which is the Re base on bulk mean velocity in J Kim, P Moin and R Moser 1986 JFM paper.


Any responds is greatly appreciated.


Regards


Zhenrong JING


PhD école centrale de Nantes




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