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To study the velocity profile of motor-oil flow in a circular pipe, it was proposed to conduct a test using water (instead of oil). The oil-conducting pipe diameter is 0.4 m and the expected average velocity is about 1.5 m/s. For the properties of these two fluids, use the values listed in Table. 1.1.
(a) Suppose the same diameter pipe is used for the test with the water. What is the average water velocity for the two flows to be similar?
(b) Would you change the pipe diameter, too, for the test with the water?
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