Quote:
Originally Posted by justpassntime
Why couldn't you use a peanut oil fog machine and a big fan for home wind tunnel testing?
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Each of those would put out turbulent flow, and together it'd be even worse. You can't put that fog through a small wand, so how are you going to target the area -- have it on a stand?
Quote:
Originally Posted by cfg83
Would you have to "scale" the wind speed to the scale of the model or ?!?!?!?
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Yes, if one wanted to get real drag numbers. Look up "Reynolds number."
Quote:
Originally Posted by justpassntime
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Yes, the model would have to be a model. Toys are extremely inaccurate, as proven by the link!