Velocity profile

kywong5 · September 26, 2017, 10:59

Hi all, I have an inquiry as below:

I have specified the same velocity (100 m/s) at the inlet. But the high velocity (coloured in red) region in my case in lesser as compared to literature. Could I know why is ths happen?

Mine
<https://ibb.co/iHAbDk>

Literature
<https://ibb.co/foWcKQ>

Thank you.

Large Epic Simulations · September 29, 2017, 06:14

There are a lot parameters that plays a role on the outcome of a simulation.
I suggest you to find the differences between your pre-traitment and the one of the litterature.

Respect to litterature do you use:
the same code?
the same mesh?
the same turbulence model?
the same convergence critieria?
the same fluid physical properties?
the same boundary conditions?
the same post-processing?

I can continue for years, but please check these questions if you want to arrive to a correct conclusions

Best Regards

September 26, 2017, 10:59	Velocity profile	#1
kywong5 New Member Join Date: Dec 2015 Location: Japan Posts: 25 Rep Power: 10	Hi all, I have an inquiry as below: I have specified the same velocity (100 m/s) at the inlet. But the high velocity (coloured in red) region in my case in lesser as compared to literature. Could I know why is ths happen? Mine <https://ibb.co/iHAbDk> Literature <https://ibb.co/foWcKQ> Thank you.

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September 29, 2017, 06:14		#2
Large Epic Simulations Member Join Date: Jun 2017 Posts: 43 Rep Power: 9	There are a lot parameters that plays a role on the outcome of a simulation. I suggest you to find the differences between your pre-traitment and the one of the litterature. Respect to litterature do you use: the same code? the same mesh? the same turbulence model? the same convergence critieria? the same fluid physical properties? the same boundary conditions? the same post-processing? I can continue for years, but please check these questions if you want to arrive to a correct conclusions Best Regards