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The thin-plate orifice in Fig causes a large pressure drop. For 20°C water flow at 500 gal/min, with pipe D =10 cm and orifice d =6 cm, p1 -p2 ˜145 kPa
The steady plane flow in the figure has the polar velocity components v? = Or and vr = 0. Determine the circulation G around the path shown.
The Stokes-Oseen formula for drag on a sphere at low velocity V is: F = 3pµ DV + 9p/16pV2D2 Where D = sphere diameter, µ = viscosity, and ? = density.
The Stokes number, St, used in particle-dynamics studies, is a dimensionless combination of five variables: acceleration of gravity g, viscosity µ
The pump-turbine system in Fig draws water from the upper reservoir in the daytime to produce power for a city
The quarter circle gate BC in Fig. is hinged at C. Find the horizontal force P required to hold the gate stationary. The width b into the paper is 3 m
The Rankine body or revolution in Fig is 60 cm long and 30 cm in diameter. When it is immersed in the low-pressure water tunnel as shown, cavitation
The rectangular channel flow in Fig expands to a cross-section 50% wider. Beginning at points a and b, sketch and label the water-surface profiles
The rectangular channel in Fig contains a V-notch weir as shown. The intent is to meter flow rates between 2.0 and 6.0 m3/s with an upstream hook
The simply supported 1040 carbon steel rod of Fig is subjected to a cross flow stream of air at 20°C and 1 atm, for what stream velocity U will the rod
The sluice gate in Fig can control and measure flow in open channels. At sections 1 and 2, the flow is uniform and the pressure is hydrostatic
The small boat is driven at steady speed Vo by compressed air issuing from a 3-cm-diameter hole at Ve = 343 m/s and pe = 1 atm, Te = 30°C.
The small turbine in Fig extracts 400 W of power from the water flow. Both pipes are wrought iron. Compute the flow rate Q m3/h. Sketch the EGL and HGL
The speed of propagation Cof a capillary wave in deep water is known to be a function only of density , wavelength ?, and surface tension Y.
The radio antenna on a car begins to vibrate wildly at 8 Hz when the car is driven at 45 mi/h over a rutted road which approximates a sine wave of amplitude
The size d of droplets produced by a liquid spray nozzle is thought to depend upon the nozzle diameter D, jet velocity U, and the properties of the liquid
The particle in Fig is moving in sea-level standard air. From the two disturbance spheres shown, estimate
The period of oscillation T of a water surface wave is assumed to be a function of density ?, wavelength ?, depth h, gravity g, and surface tension Y
The period T of vibration of a beam is a function of its length L, area moment of inertia I, modulus of elasticity E, density ?, and Poisson's ratio s
The pipe bend of Fig. has D1 = 27 cm and D2 = 13 cm. When water at 20°C flows through the pipe at 4000 gal/ min, p1 = 194 kPa (gage). Compute the torque
The pump of Fig is used to deliver 0.7 m3/s of methanol at 20°C through 95 m of cast-iron pipe. What is the proper pipe diameter?
The pump in Fig draws gasoline at 20°C from a reservoir. Pumps are in big trouble if the liquid vaporizes (cavitates) before it enters the pump.
The pump in Fig creates a 20°C water jet oriented to travel a maximum horizontal distance. System friction head losses are 6.5 m.
The pressure in the air gap is 8000 Pa gage.The tank is cylindrical. Calculate the net hydrostatic force
The power P generated by a certain windmill design depends upon its diameter D, the air density ?, the wind velocity V, the rotation rate O