[typhoon1010]

Hi,

I am stuying non equilibrium thermal model.

System inlet temperature constant at 1473 Kelvin.

System initial temperature at 300 Kelvin.

My question is Which air temperature properties I should use? (1473 Kelvin or 300 Kelvin or average.)

I added picture of system and.

I added picture of system temperature change in transient solution.


Thank you in advance.

Best Regards.

[vigii]

May Be you should try using temperature dependent properties for air.

[typhoon1010]

Originally Posted by vigii

May Be you should try using temperature dependent properties for air.

You are right. But in the system fluid and solid properties temperture independent. In this case, Should I 1473K air?

System initial temperture 300K. and when finish the charging. Solid and fluid temperature reach 1473K.

Best Regards.

[Kushal Puri]

Originally Posted by typhoon1010

Hi,

I am stuying non equilibrium thermal model.

System inlet temperature constant at 1473 Kelvin.

System initial temperature at 300 Kelvin.

My question is Which air temperature properties I should use? (1473 Kelvin or 300 Kelvin or average.)

I added picture of system and.

I added picture of system temperature change in transient solution.




Thank you in advance.

Best Regards.

You need to define some polynomial curves.