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temperature gradient boundary condition

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I am trying to implement a boundary condition where the temperature gradient in the normal direction to the wall is -1. how do i do it. i am using heat transfer in fluid physics and laminar flow physics. and in a wall i have to set temperature gradient in the normal direction to the wall to -1. is there any way i can do that?


1 Reply Last Post Jun 11, 2018, 8:54 a.m. EDT

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Posted: 6 years ago Jun 11, 2018, 8:54 a.m. EDT
Updated: 6 years ago Jun 11, 2018, 8:54 a.m. EDT

Hello,

Use a "Heat Flux" bundary condition. You can find it by right-clicking the Heat Transfer in Fluid node. Select a boundary and it will impose the following condition :

is the temperature gradient, also called heat flux. You can assigned the value you wish in the field q0.

Hope it helps !

Hello, Use a "Heat Flux" bundary condition. You can find it by right-clicking the Heat Transfer in Fluid node. Select a boundary and it will impose the following condition : - \textbf{n} \cdot \textbf{q} = q_0 \textbf{q} is the temperature gradient, also called heat flux. You can assigned the value you wish in the field q0. Hope it helps !

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