Engine oil at 20°C flows in a 20-cm-diameter pipe that is 130m long at a velocity of 1.6 m/s. What is the friction factor?
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Engine oil at 20°C flows in a 20-cm-diameter pipe that is 130m long at a velocity of 1.6 m/s. What is the friction factor?
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- Engine oil at 20 C flows in a 14-cm-diameter pipe at a rate of 900 L/min. The friction factor for this flow isFor a fully developed flow of water in a pipe having diameter 10 cm, velocity 0.1 m/s and kinematic viscosity 10-5 m²/s, the value of Darcy friction factor isPressure Drop of Power-Law Fluid in Laminar FlowA power-law fluid having a density of 1041 kg/m3 is flowing through 14.9 m of a tubing with an inside diameter of 0.0524 m at an average velocity of 0.0728 m/s. The rheological or flow properties of the fluid are K′ = 15.23N·sn′/m2 (0.318 lbf·sn′/ft2) and n′ = 0.40. Calculate the pressure drop and friction loss using Eq. (9.1-10) for laminar flow. Check the generalized Reynolds number to make sure that the flow is laminar. Repeat part (a) but use the friction-factor method
- Water at 10 C flows in a 1.25-cm-diameter pipe at a rate of 1.33 L/min. The hydrodynamic entry length (in meters) isFor fully developed laminar pipe flow in a circular pipe, the velocity profile is given by u(r)= 2(1- r2 / R2) in m/s. Where R is the inner radius of the pipe. Assuming that the pipe diameter is 4 cm. find the maximum and average velocities in the pipe as well as the volume flow rate.Glycerin at 40°C with ?? = 1252 kg/m3 and ?? = 0.27 kg/m·s is flowing through a 6-cm-diameter horizontal smooth pipe with an average velocity of 3.5 m/s. Determine the pressure drop per 10 m of the pipe. What is minor loss in pipe flow? How is the minor loss coefficient KL defined?
- Water flows in a 15-cm-diameter pipe at a velocity of 1.8 m/s. If the head loss along the pipe is estimated to be 16 m, the required pumping power to overcome this head loss isEngine oil at 20°C flows in a 15-cm-diameter pipe at a rate of 800 L/min. The friction factor for this flow is (a) 0.746 (b) 0.533 (c) 0.115 (d) 0.0826 (e) 0.0553The velocity profile in fully developed laminar flow in a circular pipe of inner radius R = 2 cm, in m/s, is given by u(r) = 4(1 − r2/R2). Determine the average and maximum velocities in the pipe and the volume flow rate.
- The velocity profile in fully developed laminar flow in a circular pipe of inner radius R = 4 cm, in m/s, is given by u(r) = 4(1 - r2/R2). Determine the average and maximum velocities in the pipe and the volume flow rate.Consider an air solar collector that is 1 m wide and 4 m long and has a constant spacing of 3 cm between the glass cover and the collector plate. Air flows at an average temperature of 45°C at a rate of 0.12 m3/s through the 1-m-wide edge of the collector along the 4-m-long passageway. Disregarding the entrance and roughness effects and the 90° bend, determine the pressure drop in the collector.Water flows along a tube of diameter d = 6 mm with a velocity w = 0.4 m/s. The temperature of the tube wall t = 50°C. What should the length of the tube be to ensure a water outlet temperature tr2 = 20°C at a water inlet temperature twi = 10°C?