1-88 When a body moves through a fluid it experiencesa resistance to its motion which can be represented by theequation F = }CpV²A where F is a force, p is the densityof the fluid, V is the velocity of the body relative to thefluid, and A is the cross-sectional area of the body. Showthat the drag coefficient Cp is dimensionless.%3D

The force experience a resistance when the body is in fluid is given as, F=12CDρV2A.......(1) Here,…

Answered: 1-88 When a body moves through a fluid…

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

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The pressure drops 4P = P₁ P2 through a long section of round pipe can be written in terms of the shear stress Tw along the wall. Shown in Figure 3 is the shear stress acting by the wall on the fluid. The shaded region is a control volume composed of the fluid in the pipe between axial locations 1 and 2. Using the method of repeating variables, generate a relationship for pressure drop as a function of all other parameters Final ans AP = P μ (₁ AP= {(₂17₂) P₁ CV UPL м = (²1 ²² an! VPL O P.H. L V
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Q1. Honey is a very widely used ingredient in cooking all around the world. Many commercial honey manufacturers heat treat honey to remove harmful bacteria that may be present. The density and viscosity of the honey varies with temperature, as shown in table 1. Temperature K 293 298 303 308 313 318 323 Density kg/m³ 1403 1398 1393 1388 1383 1378 1373 Viscosity Pas 55.66 46.45 37.99 30.28 23.32 17.11 11.65 Table 1: Fluid properties of honey. A particular processing facility heats and sterilises 500 kg of unprocessed honey every 30 minutes. The unpro- cessed honey is stored in large vats, then pumped though pipes into heating units before being pumped through another pipe to be bottled. The pipe carrying the honey from a storage container, which is 11 m tall, to a heating unit is 5 m long and has a diameter of 10 cm. Prior to being heated the honey is kept at 25°C. (a) What is the pressure difference between the top and bottom of a storage vat when it is full? (b) What is the volume flow…
Q5/A 400 m² light-colored swimming pool is located in a normal suburban site, where the measured wind speed at 10 m height is 2 m/s. The water temperature is 25 °C, the ambient air temperature is 10 °C, and relative humidity is 60%. There are no swimmers in the pool, the temperature of the make-up water is 20 °C, and the solar irradiation on a horizontal surface for the day is 15 MJ/m2-d. Neglect heat losses due to evaporation and radiation. How much energy must the solar system supply (Qss) to the pool to keep its temperature to 25 °C? Take: a = Solar absorptance (a = 0.85 for light-colored pools; a = 0.90 for dark colored pools).
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