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Old 06-07-2020, 08:23 PM   #14 (permalink)
JulianEdgar
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Quote:
Originally Posted by cr45 View Post
At this moment in time I use mine for doing engine port flow measurements using a venturi and hence the 2psi works well.

For car aero measurements - particularly at the front of the car - I was wondering if there would be any merit in using a pitot tube protruding in front of the car to get a static reading to be used as one input to the differential manometer. This would be a substitute for the pressure box. How far the pitot would need to protrude in front of the car to get a clean static pressure is the question.
That's a very interesting idea - one I'd certainly not thought of.

The two issues I can see though is that I think the static port would need to be a long way ahead of the car (eg 1+ metres) and such a support could change flow patterns on the car.

But, depending on how quiet your roads are, I think both are not major deficiencies. I'll give it a go today and report back.
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