Learning Forum

[abd fs]

Dear researchers, I am simulating an unsteady turbulent flow (ideal gas) in complex geometry, and I want to calculate the Reynolds number of the flow. At the entrance of the field, a pressure of 0.25MPa, is imposed. My question is: how can I calculate the Reynolds number of the flow inside computer domain?

Best regards,

SERRAR

[Rob]

Treat the solver result in exactly the same way you would experimental data. How would you do the calculation there?

[abd fs]

Dear Rob I have no experimental data, I only have the results digitally simulated by Fluent.
If possible, do you have any recommendations for finding the Reynolds number?
Best regards

[Rob]

Which are a simulation of a real system. In the real system how would you calculate Reynolds Number?

[abd fs]

Dear Rob Thank you very much for your quick responses. I want to share with you my domain of computation to give you a vision of what I'm talking about.
Best regards

[Rob]

Staff are not permitted to open or download attachments.

[abd fs]

Dear Rob Since you can't open the image, you can just type sweeping jet on google and you will find what I have researched.
Thank you so much for your help Best regards SERRAR

[YasserSelima]

Here it is. Next time,just drag and drop the picture .. or use the photo icon at the bottom.

[abd fs]

Dear Yasser
Do you have any idea how can I calculate the number of Reynolds?
Best regards SERRAR

[YasserSelima]

Re number is used for comparison between similar cases at different scale and flow conditions. So, I would look in the literature for similar case .. if nothing is found, I would calculate it at the entrance

[abd fs]

Thank you so much for your help, Mr Yasser

[YasserSelima]

You are welcome!

[Rob]

Ah, a bi-stable fluidic oscillator. Make sure your mesh is VERY good.

[abd fs]

Dear Rob Since I have a complex domain, I have divided it into several subdomains, which increases the quality of the network.
Beste regards SERRAR