The flow rate w is input as a real constant so mu is

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Unformatted text preview: y and Sons, Inc., New York, NY, 1960, pg. 224, ex. 4. Analysis Type(s): Thermal (pressure) Analysis (ANTYPE = 0) Element Type(s): Coupled Thermal-Fluid Pipe Elements (FLUID116) Input Listing: vm124.dat Test Case Water (density ρ, viscosity µ) flows from a large reservoir into a long piping system. Determine the Reynold’s number Re and the flow rate w for pipes of friction factor f and diameter d. The loss coefficients for the sharpedged entrance and 90° elbow are K1 and K2, respectively. Material Properties ρ = 1.94 lb-sec2/ft4 µ = 2.36 x 10-5 lb-sec/ft2 Geometric Properties H = 20 ft 1 = 20 ft 2 = 70 ft 3 = 10 ft d = 0.25 ft Loading K1 = 0.5 K3 = 0.9 f = 0.028 for 105 < Re < 106 g = 32.2 ft/sec2 Analysis Assumptions and Modeling Notes The reservoir head is given by (H - 3) = 10 ft. This is applied as a pump head within a short (0.01 ft, to minimize friction) horizontal element. The acceleration input accounts for the vertical flow. The exit pressure and the water surface pressure is de...
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