Elements Of Electromagnetics
7th Edition
ISBN: 9780190698614
Author: Sadiku, Matthew N. O.
Publisher: Oxford University Press
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A certain liquid at 20 deg.C has a viscosity of 0.000651 Pa.s. What shear stress is required to deform this fluid at the shear rate of 4900 per second?
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- Can i get the answer as an image i cant see the hold write up Tried using my laptop same issuearrow_forwardn = Xe()r -------Equation 1 where X = 1.7419 and (E/R) = -0.018 are constants for a given fluid. You are required to carry out appropriate calculations on the effect of changes in temperature given in table A by using equation 1 for Ethanol on the viscosity of a fluid. Table A NO Temperature viscocity n T°C cP 10 3 20 30 5 40 6. 50 7 60 8 70 In addition to this, calculate other constraints such as the variety of shear stress (T) and force due to fluid viscosity, when the two layers of different compressible Newtonian fluids are contained between two flat plates separated by a distance of 0.05m and fluid moving with the velocity of 2m/s in the horizontal direction. Assume the shear area between the fluid layers is 0.5m². To do this you required to explain, with examples, the effects of temperature and shear forces on Newtonian and non-Newtonian fluid. Also, explain the operation and constraints of different viscometers that quantify viscosity in fluids. 2.arrow_forwardQuestion 1: Define and state the viscosity equation for a Coutte flow. Question 2: Develop and algebraic equation for viscosity of a liquid as a function of temperature. Calculate the kinematic viscosity of water at T = 303 K. Question 3: If a liquid water at 300C is flowing in a pipe and the pressure drops to the vapor pressure, what happens in the water and why, explain?arrow_forward
- Cell culture media is flowing through a cylindrical tube at a volumetric flow rate of 12 ml/s. The tube has a diameter of 0.8 cm and length of 12cm. Assume the viscosity of the media is 1.2 cP (0.0012 Pa s). a. What is the shear rate at the wall of the tube ? b. What is the shear rate at the centerline of the tube ? c. What is the shear stress at the wall of the tube ?arrow_forwardQuestion 3 As part of a processing of biofuels, water is pumped into a circular tank with a diameter Dt, as shown in Figure Q3. The flowrate into the tank is Q₁ and the flowrate out is Q2. When the vessel is heated, water evaporates. The average velocity at which the vapour rises across the entire tank is vevap- You may assume that water has a density of Pw, and vapour has a density of P₁. Acceleration due to gravity is g. a) Find an expression for the rate of change of the mass of water in the tank.arrow_forwardPls show proper steps with explanation.arrow_forward
- Make comments on relationship viscosity-shear rate for shear thinning shear thickening and Newtonian fluids.arrow_forward4.2. A Bingham liquid requires 100 Pa yield stress to flow. If the shear rate was found to be 5 Hz at a corresponding shear stress of 200 Pa, what is the liquid's plastic viscosity?arrow_forwardA gas whose viscosity is 0.98 centipoise flows through a tube 1.0 mm in diameter and 200 mm long. Find the volume in cubic centimetre of the gas which passes through the tube every 10 secs at a pressure of 2 atm.arrow_forward
- From the viscosity expriment: · Calculate the value of the viscosity coefficient and its propagated error where ( slope =122 cm-1 · s-land its error = 15.42 cm~1.s-1) (ps = 7.86g/cm3 and PL = 0.88 g/cm3)arrow_forwardQ3: A very lange thin plate is centered in a gap of width Co.06 m) with different oils of unknown viscosities above & below , one viscosity is twice the other. When the p late is pulled at a velocity of Co-3 mls.), the resulting force on one square meter of the plate due fo the viscous shear on both sides is C29 N). Calculate the viscosities of the oils.arrow_forward
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