Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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Question
Compressible laminar fl ow, f≈ 64/Re, may occur in capillary
tubes. Consider air, at stagnation conditions of 100°C
and 200 kPa, entering a tube 3 cm long and 0.1 mm in
diameter. If the receiver pressure is near-vacuum, estimate
(a) the average Reynolds number, (b) the Mach number at
the entrance, and (c) the mass flow in kg/h.
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- Air flows steadily from a tank through the pipe inFig. . There is a converging nozzle on the end. Ifthe mass flow is 3 kg/s and the nozzle is choked, estimate(a) the Mach number at section 1 and (b) the pressureinside the tank.arrow_forward4. It is important to remember that the isentropic relations and normal shock relationsare monotonic with Mach number and can be inverted. To illustrate this, consider thefollowing problems, (c) If the temperature jumps from 0 Celsius ahead of a shock to 200 Celsius behinda shock, what is the shock Mach number?(d) If the velocity behind a Mach 5 shock wave is 200 m/s, what is the upstreamvelocity?arrow_forwardA normal shock occurs in a stream of oxygen. The oxygen flows at Ma=1.8 and the upstream pressure and temperature are 40 psia and 85 degrees Fahrenheit. a) Calculate the following on the downstream side of the shock: static pressure, stagnation pressure, static temperature, stagnation temperature, static density, and velocity. b)If the Mach number is doubled to 3.6, what will be the resulting values of the parameters listed in part (a)?arrow_forward
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