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Drag on plate 1

Drag on plate 1

Drag on plate 1

Where I can find the drag on a plate moving at velocity V1 in a direction which is perpendicular to an air moving at V2. The air speed V2 is parallel to the plate while the plate moves to the side at velocity V1. What I am looking for is the drag resisting the V1.
If the air has zero velocity the drag was

DRAG = 0.5*ro*V1*V1*PLATE AREA*Cd.

How the parallel V2 affects the drag.

RE: Drag on plate 1

The airflow is oblique, so the plate develops "lift".  It might be simpler to solve for the resultant airflow speed and direction, solve for the lift and drag in that set of axes, and then convert them into your original set of co-ordinates.
                                         /|   lift'
             ^Lift                    /
-----> \   |            =         ._
------> \   ->Drag             |\        drag'
-------> \                            \

Well, something like that - drawing with text isn't the easiest.

Steven Fahey, CET
"Simplicate, and add more lightness" - Bill Stout

RE: Drag on plate 1


So simple!

32 years have past from the last time I calculated lift and drag (while I was an student in the aeronautics department).

I have found the free program FoilSim from NASA and with your help I can calculate the resisting induced lift.


RE: Drag on plate 1

Well, SparWeb, I'm impressed...

Not only did you provide a simple and concise answer to his question, but you even managed a little diagram in ASCII.



Joseph K. Mooney
Director, Airframe Structures - FAA DER
Delta Engineering Corporation

RE: Drag on plate 1

But not worth a star?    just fishing....

Drawing in ASCII takes patience and insanity - in equal measures.

Steven Fahey, CET
"Simplicate, and add more lightness" - Bill Stout

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