Just getting started with FW. Went through the tutorial andit all made sense.
...now I have a problem.
I am simulating an aluminum heatsink under natural convection. Theassembly consists of an empty enclosure with a hole on the bottomand another on the top, directly above it.
Inside is the heatsink. The channels between the fins are alignedvertically, in other words, if air flow from bottom to top it willflow between the fins. The holes are larger than the heatsink. Theheatsource is applied to the surface opposite where the fins are.
I've setup lids on both openings. Both lids are configured aspressure openings at Environment Pressure.
I've enabled Gravity for the simulation.
The goal is max heatsink temperature.
OK, that's the setup. Here's the problem:
When I display the flow trajectory along the Y axis (vertical)FlowWorks says that air is flowing downward rather than theopposite. The heatsink has over 200W going into it...it'd beimpossible for natural convection to flow downward.
Obviously there's something wrong with my configuration. Anysecrets to setting-up a simple natural convection simulation?
Thanks,
-Martin
SolidworksSimulation
...now I have a problem.
I am simulating an aluminum heatsink under natural convection. Theassembly consists of an empty enclosure with a hole on the bottomand another on the top, directly above it.
Inside is the heatsink. The channels between the fins are alignedvertically, in other words, if air flow from bottom to top it willflow between the fins. The holes are larger than the heatsink. Theheatsource is applied to the surface opposite where the fins are.
I've setup lids on both openings. Both lids are configured aspressure openings at Environment Pressure.
I've enabled Gravity for the simulation.
The goal is max heatsink temperature.
OK, that's the setup. Here's the problem:
When I display the flow trajectory along the Y axis (vertical)FlowWorks says that air is flowing downward rather than theopposite. The heatsink has over 200W going into it...it'd beimpossible for natural convection to flow downward.
Obviously there's something wrong with my configuration. Anysecrets to setting-up a simple natural convection simulation?
Thanks,
-Martin
SolidworksSimulation
