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Homework Help: Fluid Flow help

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  1. Feb 18, 2016 #1
    1. The problem statement, all variables and given/known data
    A 15 cm. radius cylindrical air duct is used to replenish the air of a room 10 m.*6 m.* 3m. Every 10 minutes. Determine the speed of the air through the duct in m/s. A1=15 V1=? A2=19 V2=0

    2. Relevant equations
    A1V1=A2V2

    3. The attempt at a solution
    3.14*15^2 * ?= 19*0=. 3.14*15^2=706.5
     
  2. jcsd
  3. Feb 19, 2016 #2

    billy_joule

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    Science Advisor

    Your attempt makes no sense. show units and explain your reasoning.

    What is the volume of the room?
    What volume per second must flow through the room to replace that volume every ten minutes?
    To achieve that volumetric flow rate how fast must that air flow through the duct?
     
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