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Old   August 5, 2011, 20:26
Default Question about Axisymmetric solver.
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Hi all

I'm doing a study with a 2D axisymmetric setting. In this study, there is a particular zone that acts as an energy source. This semicircular zone is intended to be rotated about the axis to model a spherical region of plasma.

Now, I have defined an energy source term within that zone, and I know the total energy deposited per second within the sphere (7W), and I know that this small region has a radius of 0.25 mm.

Now, calculating the volumetric heating as simply Power/Volume results in a figure of the order 10^10 W/m3

Now, my question is this: I'm unsure if I should be calculating the volumetric heating based upon the volume, as I've done above, or if I should simply calculate it over the semicircular area, which is then integrated around the axis BY FLUENT automatically - I have no idea what Fluent would actually do, so I'm hoping someone who's experienced in axisymmetric solution can advise me on this.

Thanks in advance.
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Old   August 8, 2011, 10:17
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jsm
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Hi,

You need to give the full source as like 3D analysis. No need to convert the source to axi symmetric analysis.
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Old   August 8, 2011, 17:13
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OK, awesome. That means I've done it right then. Thanks.
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