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Solved: Consider two identical fans, one at sea level and
Chapter 3, Problem 5P(choose chapter or problem)
Consider two identical fans, one at sea level and the other on top of a high mountain, running at identical speeds. How would you compare (a) the volume flow rates and (b) the mass flow rates of these two fans?
Questions & Answers
QUESTION:
Consider two identical fans, one at sea level and the other on top of a high mountain, running at identical speeds. How would you compare (a) the volume flow rates and (b) the mass flow rates of these two fans?
ANSWER:Step 1 of 2
The volume flow rate Q of a fluid is defined as the volume of fluid that is passing through a given cross sectional area per unit time. Q =
The volume of a portion of the fluid in a pipe can be written as V = Ad , where A is the cross sectional area of the fluid and d is the width of that portion of fluid.
After substituting this formula for volume V into the volume flow rate ,we get
Q = =
where
= speed of the fluid.