Falling Water Stream

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 Code Number :   2C20.90?

Disclaimer:

Reprinted by permission of Dick Berg, University of Maryland, for use on this website.

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Condition :   Good  
Principle :   Bernoulli's Principle  
Area of Study :  Heat & Fluids   
Equipment :   Old fashioned faucet, 0-150 VDC power supply, water pump on electric motor, bucket of water, and stand for bucket, and plastic wash tub.

Procedure :   Turn on the water pump to a speed where water flows smoothly out of the faucet.  NOTE:  all the air needs to be out of the line for this to work properly.  Adjust the speed so that the water flows smoothly and constricts as it falls downward.
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   References

A. Tan, "The Shape of Streamlined Tap Water Flow", TPT, Vol. 23, # 8, Nov. 1985, p. 494.

David H. Martin, "Misunderstanding Bernoulli", TPT, Vol. 21, # 1, Jan. 1983, p. 37.

Mario Iona, "Beyond Bernoulli", TPT, Vol. 21, # 5, May 1983, p. 282.

David H. Martin, "The Author Replies", TPT, Vol. 21, # 5, May 1983, p. 282.

 

4.19:  Jearl Walker, "Bernoulli Effect," The Flying Circus of Physics with Answers.

6.7:  Robert Ehrlich, "Narrowing of a Descending Water Stream," Why Toast Lands Jelly-Side Down.

Robert Ehrlich,  "Ping-Pong Ball Near a Water Stream,"  Turning the World Inside Out, p. 105.

Robert Ehrlich,  "Straw Atomizer,"  Turning the World Inside Out, p. 109-110.



Mail Questions and Comments to:  Dale Stille