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Simon Neuner

Solar Radiation Modeling in AcuConsole

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Dear Experts,

I have a solar panel, which consists of different layers (solids). The panel is exposed to a irradiance of 800 W/m^2 from straight above:

grafik.png.e8e0459c099562accbfa1c515c7ea0b4.png

 

I have a question regarding the definition of the surfaces under Solar Radiation Surface (Default, Inward, Outward, Both Sides) for the case shown above.

 

If I define all surfaces (side-, top & bottom surfaces and also surfaces between different layers) as DEFAULT, I get the following results in Hyperview for the solar flux:

grafik.png.51e21d1ce13366d094d05aec4938f72a.png

 

If I define all surfaces as BOTH SIDES, I get the following results in Hyperview for the solar flux:

grafik.png.6a41a084a4ca9d231c2c67622b4c150d.png

 

How can I decide which option is the right for my usecase to model the physics correctly.

 

Furthermore, what exactly is designated with solar_heat_flux in Hyperview? Is it the radiation intensity or another quantity?

 

And what are the "best" options for Solar Radiation Parameters for num.rays, num. diffuse sub rays, max. ray reflections, min.ray energy?

 

Thanks in advance!

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I would avoid using the "default" wall approach and defining everything explicitly in HWCFD or HyperMesh. 

 

Also try visualizing in AcuFieldView as HyperView cannot handle all CFD results. 

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