Conductive Heat Transfer of Regenerator Block in Gamma Stirling Engine Model

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Ahmed
Ahmed 2024-6-11
评论： Yifeng Tang 2024-6-11
The conductive heat transfer block is set to planar, when i try to change it to cylndrical for more realistic model as the regenerator is in fact cylindrical.
My inputs are as follows:
Inner Diameter = geometry.displacer_piston.radius
Outer Diameter = geometry.displacer_piston.radius + geometry.displacer_piston.glass_thickness
Length = regenerator.geometry.length
Conductivity (K) = regenerator.conductionHeater.k
For both of the conductive blocks, when i do that the engine simply fails to operate.
I used temperature sensors and in original model the temperature between heater and ambient are about 1550 but when i do the cylindrical modification it starts at that difference then decrease to zero as time move on
I want to understand why am i doing wrong.

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