Fundamentals of Aerodynamics
6th Edition
ISBN: 9781259129919
Author: John D. Anderson Jr.
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 19, Problem 19.5P
Repeat Problem 19.4 for the case of all turbulent flow.
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Example 1:
A pipe 1 m diameter and 15 km long transmits water of velocity of 1 m/sec.
The friction coefficient of pipe is 0.005.
Calculate the head loss due to friction?
1. A flow rate 450 L/s (water at 20°C) is carried in a 50-cm-diameter pipeline (ductile
iron new) for a distance of 1.5 km. Compute the friction head loss from (a) the Hazen-
Williams, and (b) Manning Equations.
Water at room temperature with a mass flow rate of 2 kg / s flows through a system of 2 pipes connected in series. The first piece of pipe is 10 m long 1 in. Sch. 40, the second piece of pipe is 15 m long 2 in. Sch 40 is made of commercial steel tubing. Piping system is horizontal. Calculate the pressure loss across both pipes and the pump power required to flow water through this piping system, ignoring the energy loss of the fitting. CREATE THE KNOWN AND UNKNOWN BY DRAWING THE SHAPE OF THE ORGANIZATION AND WRITE YOUR ASSUMPTIONS IN DETAIL
Chapter 19 Solutions
Fundamentals of Aerodynamics
Ch. 19 - The wing on a Piper Cherokee general aviation...Ch. 19 - For the case in Problem 19.1, calculate the...Ch. 19 - For the case in Problem 19.1, calculate the...Ch. 19 - Consider Mach 4 flow at standard sea level...Ch. 19 - Repeat Problem 19.4 for the case of all turbulent...Ch. 19 - Prob. 19.6PCh. 19 - Prob. 19.7P
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- A local ventilation system (a hood and duct system) is used to remove air and contaminants from a pharmaceutical lab (Fig. 1). The inner diameter (ID) of the duct is 129 mm, its average roughness is 0.15 mm, and its total length is L = 24.5 m. There are three elbows along the duct, each with a minor loss coefficient of 0.21. Literature from the hood manufacturer lists the hood entry loss coefficient as 3.3 based on duct velocity. When the damper is fully open, its loss coefficient is 1.8. The minor loss coefficient through the 90° tee is 0.36. Finally, a one-way valve is installed to prevent contaminants from a second hood from flowing “backward” into the room. The minor loss coefficient of the (open) one-way valve is 6.6. The performance data of the fan fit a parabolic curve of the form Havailable = H0 - aV2, where shutoff head H0 = 60.0 mm of water column, coefficient a = 2.50 x 10-7 mm of water column per (Lpm)2 ,available head Havailable is in units of mm of water column, and…arrow_forwardWhat is the theorical fan power needed to develop a pressure of 7.5 cm water gage W.G. supplied to air moving at 6.0 meter/min through a round duct of 880 mm in diameter?arrow_forwardIn the design of a 500m long water pipeline it is proposed to keep head loss, hf, less than 6m for a flow of 0.50 m's1. The pipeline must also be able to withstand water hammer pressures under rapid valve closure condition at the discharge end. Two types of pipes- PVC and steel - each 50 cm in diameter are available. Which pipe will you recommend? 1. The Darcy friction coefficient, 2, can be estimated from Figure 1. The value of the roughness height for steel pipe is 0.00015m, while the PVC pipe can be considered hydraulically smooth. The thickness of each pipe is 1 cm and the Modulus of Elasticity, E, for steel is 200x10° Nm2 and for PVC is 1.7×10®N%?. The Bulk Modulus of Elasticity, K, for water is 2x10°Nm2. The working pressures for the steel and PVC pipes are 2 MPa and 1 MPa respectively. 0,1 0,09|Laminar flow f IN aica Transition 0,08 Laminar Critica! flow Complete turbulence, rough pipes Zone 20ne 0,05 0.07 0,04 0,06 0,03 0,05 0,02 0,015 Lio 0,04 0,01 0.008 Re, 0,006 0,03 0,004…arrow_forward
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