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Simulation Of Micro Heat Pipe

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Old   August 29, 2018, 06:39
Smile Simulation Of Micro Heat Pipe
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Akashdeep Gangrade
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I am doing the same type of problem i am trying to simulate the micro heat pipe in fluent, basically it is a heat pipe with condensation occurring at one end evaporation at other end and capillary forces due to change in curvature of vapour-liquid interface moves the fluid at corners from condenser section to evaporator and vapour move in central region
I have taken a 1000 micrometre pipe with 300mm of both evaporation and condenser section from both end and leaving 400 in between as adiabatic section cross-section of 100 X 100 micrometre
Boundary Conditions- 10KW/m^2 @ evaporator -10KW/m^2
also in another case, i have given 363K at evaporator and 300K at a condenser
I all case these boundary conditions are given at walls
Primary Fluid - water-vapour
Secondary Fluid-water-liquid
I patched water in the evaporator section at the beginning
Piso, momentum second order upwind, volume fraction- modified HRIC
The problem I am facing while a simulation is that the liquid is evaporating in evaporation section but not condensing in condenser section i am using the VOF model with default condensation and evaporation model in fluent 19.0
I am new into all this any type of help is deeply appreciated, if anyone can share the fluent case of evaporation/condensation process it will be of great help
Regards &Thankyou
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evaporation condensation, heat and mass transfer, heatpipe, microchannels, vof multiphase

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