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Rectangular transition duct/pipe

Rectangular transition duct/pipe

Rectangular transition duct/pipe

(OP)
Hello everyone!
I have an interesting problem I am facing with modeling.  I am running a 32" pipe into a blower wich then transitions to a rectangular duct.  Its not a long piece of ducting, however it does contain a spring hanger and a +y restraint a few feet after, before returning to circular pipe. Is it possible to model this and with good /acceptable accuracy?  Thanks,
Rich

RE: Rectangular transition duct/pipe

The best way to do this is to use the "Structural Modeler" and create a "User Defined Shape/Cross-Section".  Then include this in your piping model.

You can't approximate a rectangular cross-section in with a pipe (circular cross-section).  You need to model (accurately) both the area and the inertia.  You can only get one of these right with a circular cross-section, not both.

Richard Ay
COADE, Inc.

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