Result dependent boundary condition

KoBra · August 29, 2020, 19:04

Hello everyone,

i want to do an thermal transient simulation in Ansys where the boundary condition on an solid part is an heat flow, which is depending on the temperature on the same surface. So in reality the system measures the temperature on the surface (T) and changes the heat flow depending on it to regulate it on 60°C:

Q = Constant [W/K] * (60 [°C] -T)

So the system has to change the heat flow in each time iteration depending on its design.

Is someone common with such simulations? The preferred solution for me would be one in Ansys Thermal-transient Analysis tool but CFX is also ok.

Thanks in Advance
Konstantin

evcelica · September 10, 2020, 22:06

Seriously? The form of that equation doesn't look familiar to you?
I'll give you a hint: It's one of the 3 forms of heat transfer.
I'm really surprised there were 136 views when I posted this, and yet no answer for you.
Let me know if you need more hints, but you should really be able to get this.

August 29, 2020, 19:04	Result dependent boundary condition	#1
KoBra New Member Konstantin Join Date: Aug 2020 Posts: 1 Rep Power: 0	Hello everyone, i want to do an thermal transient simulation in Ansys where the boundary condition on an solid part is an heat flow, which is depending on the temperature on the same surface. So in reality the system measures the temperature on the surface (T) and changes the heat flow depending on it to regulate it on 60°C: Q = Constant [W/K] * (60 [°C] -T) So the system has to change the heat flow in each time iteration depending on its design. Is someone common with such simulations? The preferred solution for me would be one in Ansys Thermal-transient Analysis tool but CFX is also ok. Thanks in Advance Konstantin

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September 10, 2020, 22:06		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,190 Rep Power: 24	Seriously? The form of that equation doesn't look familiar to you? I'll give you a hint: It's one of the 3 forms of heat transfer. I'm really surprised there were 136 views when I posted this, and yet no answer for you. Let me know if you need more hints, but you should really be able to get this.