6. Which statement is correct for a hydrodynamically fully developed flow?(a) Ju/ǝx = 0(b) Tm/ax = 0(c) Both (a) and (b).(d) None of the above.

In fluid dynamics, a flow is said to be hydrodynamically fully developed if the velocity profile…

Answered: 6. Which statement is correct for a…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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a.Obtain Bernoulli’s equation for compressible flow considering adiabatic process. b.Define vortex flow. Derive an expression of stream function and velocity potential function for vortex flow. c. What is Venturi meter? Derive an expression for discharge through venturi meter. d. What is Venturi meter? Derive an expression for discharge through venturi meter.
1
please solve all four parts
... height Fire hoses used in major structural fires have an inside diameter of 6.40 cm. Suppose such a hose carries a flow of 43 L/s. The hose rises up 13.3 m along a ladder to a nozzle having an inside diameter of 3.00 cm. What is the starting pressure at the fire truck? Use p=1000 kg/m³ and g =9.8 m/s? Answer in KPa. No label, no unit, number only.
A) A 0.4 m diameter fan running at 970 rev min' is tested when the air temperature is 10 °C and the barometric pressure is 772 mm Hg and the volume flow rate Q=0.7 m s. Find the corresponding volume flow of a geometrically similar fan of 1 m diameter, running at 500 rev min at same conditions. Assume that the fan efficiency is unchanged. Ja
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Q5: Steady, one-dim., comp. flow, A, = 0.016 m?, v, = 120 m-s", P1=2.65 kg-m, pi = 170 kPa A2 = 0.020 m?, v2 = 80 m-s", p2 = 88 kPa Find the force exerted by fluid on the diverging duct?
02 h, are 12m. The pump efficiency is 79%, and the pump is driven by an electric motor. A pump moves water @10°C from a lake into a large, pressurized holding tank as shown. The flow rate, Q. is 375 L/min, and the piping system losses, 1) Sketch the setup (simple schematic is good), 2) label the z datum, and 3) identify and label the boundary conditions (P, V, and z) at 1 and 2 for use in a) the General Energy Equation (GEE). Provide values and units for the boundary conditions. Hint: For identifying good locations for boundary conditions, where are the velocities approximately zero? b) Calculate the head added to the fluid, h,, by the pump. Give your answer in units of m. Hint: Be careful with signs in manipulating the GEE. Show as many steps as you need to get your h, equation correct. Calculate the power added to the fluid by the pump in units of kW. () Determine the required electric motor size to drive the pump in units of HP. Prank = 200 kPa Holding Tank Air 6 m Pump Lake
3. Theoretical Analysis: [With reference to the Bernoulli and Continuity equations, provide a theoretical analysis of how flowrate can be calculated for a level venturi tube. Label each equation in the theoretical analysis with a number. Explain the steps as per the start given below...] As applied to a pipeline, Bernoulli's equation can be stated as follows: P2 -++ Z1 P1 v? +Z2 (1) Pg 2g Pg 2g I. where the subscripts refer to stations 1 &2 respectively. In this case the elevation head is the same for both stations since the venturi tube is horizontal therefore the Z terms in the above equation can be omitted, giving: 二

For a high-fl ow site with a head of 45 ft, it is desired to designa single 7-ft-diameter turbine that develops 4000 bhp at aspeed of 360 r/min and 88-percent effi ciency. It is decidedfi rst to test a geometrically similar model of diameter 1 ft,running at 1180 r/min. (a) What likely type of turbine is inthe prototype? What are the appropriate (b) head and(c) fl ow rate for the model test? (d ) Estimate the powerexpected to be delivered by the model turbine.

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6. Which statement is correct for a hydrodynamically fully developed flow? (a) Ju/ǝx = 0 (b) Tm/ax = 0 (c) Both (a) and (b). (d) None of the above.