Computing the RCS of a cylinder

Andy92
Andy92 New Altair Community Member
edited October 2020 in Community Q&A

 

Hi, I would like to compute the RCS of a hollow, metal cylinder closed at both ends over the frequency range 16 GHz to 26 GHz. One of the cylinder ends is curved (very shallow paraboloid) and is lying on its side. It has a radius of 152.4mm and height 304.8mm. I would like to compute the monostatic RCS  when plane waves are incident on one of the ends of the cylinder, in the attached model i've used a loop plane wave source with theta = 90 degrees and phi from -45 to +45 degrees. 

 

Over the frequency range I'm interested in, I believe I need to switch to using an asymptotic solver like PO as the memory requirements for MoM are large. I'm unsure if any preconditioners or other solver settings would be necessary, and also what the most appropriate mesh size should be. If anyone has any advice on the most appropriate solver and it's settings it would be greatly appreciated!

 

 

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Answers

  • Mel
    Mel Altair Community Member
    edited September 2020

    You have the model setup correctly already.

    A 'coarse' mesh is perfect for PO with a plane wave as the source.

     

    If the model is symmetrical you can save time by not computing from 0 to +45 degrees.

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