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Physics
Classical Physics
Load on leaf blower as function of outlet shape
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[QUOTE="Swamp Thing, post: 6852401, member: 5126"] Would a leaf blower see a different load (in terms of back pressure and flow) depending on whether the outlet tube ends in, say a 1" nozzle, versus a flared out horn of 6" diameter? I am not thinking of viscosity effects here, but rather of Bernoulli type considerations. In the case of the horn, I believe Bernoulli leads to a sub-atmospheric pressure in the narrow part of the tube where it exits the blower proper. (Is that correct?) But I am not sure about the nozzle: Would the jet of air after leaving the nozzle effectively form a "virtual horn" spreading to a larger effective diameter, or would the physical tip of the nozzle see atmospheric pressure right away? [/QUOTE]
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Classical Physics
Load on leaf blower as function of outlet shape
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