[mjkey]

Hey Guys,

I'm trying to model the temperature in a car.

Basically the geometry i have is the inside fluid domain of the car. Or you can just treat it as a room.

I'm thinking of using the convection wall boundary condition. Setting a heat transfer coefficient and free stream temperature to 323.15K. Now I have air entering into the car at 300.15K. I want to know how to set an initial temperature in the domain, say 313.15K. Can someone please tell me how to do this?

To clarify, once the simulation begins, I want to fluid domain inside the car to be 313.15K and as the air flow into the car, I'm want the domain to gradually decrease(or whatever will happen) with mixing.

Thanks Guys!

[A CFD free user]

Originally Posted by mjkey

Hey Guys,

I'm trying to model the temperature in a car.

Basically the geometry i have is the inside fluid domain of the car. Or you can just treat it as a room.

I'm thinking of using the convection wall boundary condition. Setting a heat transfer coefficient and free stream temperature to 323.15K. Now I have air entering into the car at 300.15K. I want to know how to set an initial temperature in the domain, say 313.15K. Can someone please tell me how to do this?

To clarify, once the simulation begins, I want to fluid domain inside the car to be 313.15K and as the air flow into the car, I'm want the domain to gradually decrease(or whatever will happen) with mixing.

Thanks Guys!

It's an easy thing. Only initialize your solution in "solution initialization" submenu in solution menu or use patch option near to it. In patch, you can impose initial values for your variables (depends on which governing equations you use in your model), say, temperature in the whole domain or any zone you like.