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Homework Help: Why does shower curtain flutter inward?

  1. Oct 21, 2005 #1
    why does the shower curtain(in most showers) tend to flutter inward during a shower?

    well, i know its not due to water temperature because convection due to hot and cold air is not the primary answer.. so.. i think its because the adhesive forces between the [curtain - water molecule - shower tub] is greater than that of adhesive forces in the water molecules, thus, curtain tends to flutter inward to the shower tub.
    please correct me if im wrong. thanks alot!
  2. jcsd
  3. Oct 21, 2005 #2


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    You had the right word - convection! Air inside the shower can move fairly rapidly (accelerated by the stream of water droplets) which lowers the pressure by Bernoulli's Principle. The pressure difference pushes the curtain inward.
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