Learning Forum

[fatima Zmim]

Hellow everyone . please I want to simulate absorber plate temperature for solar box cooker with ansys fluent. my probleme is when i run calculate the temperature for air inside cooker is slowly increasing (I applie boundarry condition convection  and radiation). Please can you helpme for resolve my probleme  

[Essence]

Hello,

Are you undertaking steady state or transient simulations? Could you provide more details (screenshots of contours, models, mesh)? Check if you applied proper boundary conditions.

[fatima Zmim]

Hello, thank you for your reply 

transient su$imulate for one day.for mesh 

boundary condition

I used convection and for wall and mixed for glass 

 

[Essence]

Hello,

Mesh looks fine. What about the models and contours?

If you are running transient simulations, I suppose the temperature will rise in the domain. I do not understand how is that a problem.

[fatima Zmim]

My probleme is the temperature for plate absorber increases all the time (the 06H a.m until 06H p.m)

[fatima Zmim]

it is known that the maximum irradiation throughout the day increases to a mximum value for 1 p.m. So for absorber temperature it is necessary to decrease because the solar irradiation still decrease.My probleme is during the simulation in Ansys fluent the temperature for absorber decrease in 16H p.m   

[Essence]

Hello,

Please share the screenshots of the contours, boundary conditions, Models (Radiation, turbulence/laminar), Methods, Controls panels.