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flat plate parallel to flow in wind tunnel

thread16-70876

flat plate parallel to flow in wind tunnel

flat plate parallel to flow in wind tunnel

(OP)
Trying to get some friction drag data, but not sure of the best way to suspend the plate in the flow. Any supporting rig will distort data....

- can the supporting rig be tested separately and then subtracted out? Flow field will be different with and without plate installed; and

- what is best way to support?

Thank you for your input.
Replies continue below

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RE: flat plate parallel to flow in wind tunnel

How about a long spike, projecting upstream parallel to the flow?  Mount the downstream end to a faired support.  I've seen it in plenty of photographs, although I haven't run a wind tunnel since my college days.

Air ->          Test Section          support

                                             \  /
                       body_________\/
                                              /\
                                             /  \

Hope this lines up right...

STF

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