Hi!
I'm in a team developing an A/C kit and wanted to use myskills(limited, but some) in flow works to learn how design changesincrease vs decreases in the ducting. The evaporator is made of alot of thin fins and tubes and I hoped that I could place a blockin its housing and apply a porous material to the block.
I did this....
I modeled the evaporator (as it is in reality) and its hosing.
I then applied 2 boundary conditions, one ambient and one staticflow
I cloned the project (3 times) and sat different flow for eachconfig to 50 ft³/minute, 150 ft³/minute, 250ft³/minute, and 350 ft³/minute
I batch run the 4 configurations.
To create a new porous material in the Engineering Database Icontinued as follow....
I set item properties:
Porosity to 0.5
Permeability to Unidirectional
Resistance Calculation formula to Pressure Drop, Flowrate,Dimensions
Pressure drop vs. flowrat to Volume Flow Rate
Lengt to 3.5 in (Length of the modeled evaporator)
Area to 36 in² (Total area for the evaporator modeled)
Use calibration viscosity to be unchecked
Then I created Tables and Curve:
I edited in the flow for each config 50 ft³/minute, 150ft³/minute, 250 ft³/minute, and 350 ft³/minute andthe pressure drop I got for each configuration into the table.
Now I though I had it right and to prove it I created 4 newconfigurations (flow for each config to 50 ft³/minute, 150ft³/minute, 250 ft³/minute, and 350 ft³/minute)where I replaced the evaporator with a modeled block and appliedthe porous material I just had created to it.
But not, the pressure drop trough the evaporator vs the dummy didnot came out to be even close.
So, before I try this some more I hoped for some comments and ideasfrom this forum.
Best Regards
Emil Andersson
Designer/Drafter
SolidworksFlow Simulation
I'm in a team developing an A/C kit and wanted to use myskills(limited, but some) in flow works to learn how design changesincrease vs decreases in the ducting. The evaporator is made of alot of thin fins and tubes and I hoped that I could place a blockin its housing and apply a porous material to the block.
I did this....
I modeled the evaporator (as it is in reality) and its hosing.
I then applied 2 boundary conditions, one ambient and one staticflow
I cloned the project (3 times) and sat different flow for eachconfig to 50 ft³/minute, 150 ft³/minute, 250ft³/minute, and 350 ft³/minute
I batch run the 4 configurations.
To create a new porous material in the Engineering Database Icontinued as follow....
I set item properties:
Porosity to 0.5
Permeability to Unidirectional
Resistance Calculation formula to Pressure Drop, Flowrate,Dimensions
Pressure drop vs. flowrat to Volume Flow Rate
Lengt to 3.5 in (Length of the modeled evaporator)
Area to 36 in² (Total area for the evaporator modeled)
Use calibration viscosity to be unchecked
Then I created Tables and Curve:
I edited in the flow for each config 50 ft³/minute, 150ft³/minute, 250 ft³/minute, and 350 ft³/minute andthe pressure drop I got for each configuration into the table.
Now I though I had it right and to prove it I created 4 newconfigurations (flow for each config to 50 ft³/minute, 150ft³/minute, 250 ft³/minute, and 350 ft³/minute)where I replaced the evaporator with a modeled block and appliedthe porous material I just had created to it.
But not, the pressure drop trough the evaporator vs the dummy didnot came out to be even close.
So, before I try this some more I hoped for some comments and ideasfrom this forum.
Best Regards
Emil Andersson
Designer/Drafter
SolidworksFlow Simulation
