For the capillary-tube viscometer shown, the liquid to be tested is drawn into thetube to the level of the top etched line. The time is then obtained for the liquid todrain to the bottom etched line. The kinematic viscosity, v, in m?/s is thenobtained from the equation v = KR*t where K is a constant, R is the radius ofthe capillary tube in mm, and tis the drain time in seconds. When glycerin, whoseviscosity is 1.4 Pa.s at 20°C and density is 260 kg/m³, is used as a calibrationfluid in a particular viscometer the drain time isdensity of 970 kg/m3 is tested in the same viscometer the drain time is 900 s.What is the dynamic viscosity of this liquid?GlassstrengtheningbridgeEtched lines430 s. When a liquid having aCapillarytube

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Answered: For the capillary-tube viscometer…

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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The physical model of a pipe containing water with kinematic viscosity o = 0.804 × 10-6 ™* has been built in the scale of in a laboratory. i. Find the ratio of velocity of water in the main pipe with kinematic viscosity of 8 = 2.79 x 10-4 m? to the model. ii. Discuss the difference in the velocities of the model and main pipe.
2. Determine the Universal Saybolt Viscosity of water at t=3s. Convert the answer to Poise. 3. Convert the pressure gauge reading of 3bar to absolute pressure in psi and kpa. 4. What is the kinematic viscosity of kerosene in ft/s at u=1.64centiPoise? Density of kerosene is 775ka/m 5. What is the diameter of the other end of the pipe connection with V= 5ft/s if on the other end of the pipe is 3/4" diameter with 3ft/s?
QI A ball made of INOX AISI 365 steel with density of 8.52 gricm3 was used to determine the viscosity of oil with specific gravity of 0.91. In the viscometer, the ball traveled 19 cm in 2.2 seconds. If the diameter of the ball is 2.95 mm, what is the viscosity of the oil in pa.s ? assume that water density is 1000 kg/m'.
The kinematic viscosity of liquid oil (10³) C.S (1 stoke =100 C.S) and relative density = 0.92. Find the viscosity of the fluid oil in c.g.s and SI %3D systems.
Express the group of variables LENGTH , VISCOSITY, DENSITY, VELOCITY as a dimensionless ratio and show all your calculations.
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1. The density of an oil is 850 kg/m3. Find its relative density (or specific gravity) and Kinematic viscosity if the dynamic viscosity is 5 x 10-3 kg/ms. 2. If the viscosity of water at 70 °C is 0.00402 poise and its specific gravity is 0.978 determine its absolute viscosity in Pa-s and its kinematic viscosity in m²/s and in stokes 3. Calculate the Reynolds number, Re for water flow in a circular pipe. The diameter of the pipe is 50 mm, the density of water is 998 kg/m³, the volumetric oil flowrate is 720 L/min, and the dynamic viscosity of water is 1.2 centipoise
A rotating cup viscometer has an inner cylinder diameter of 50.8mm, and the gap between cups is 5.08mm. The inner cylinder length is 63.5mm. The viscometer is used to obtain viscosity data on a Newtonian liquid. When the inner cylinder rotates at 10 rev/min, the torque on the inner cylinder is measured to be 0.01243mN - m. Calculate the viscosity of the fluid. If the fluid density is 850 kg/ m^3, calculate the kinematic viscosity.
If the viscosity of water at 68 oF is 0.01008 poise, then its absolute viscosity expressed in terms of pound-second per square feet (lb-sec/ft^2) must be
Kinematic viscosity /g of water varies with temperature T as shown in the table. Determine the cubic that best fits the data, and use it to compute / at T = 10°,30°, 60°, and 90°C. by interpolation.)
Q1: Apply appropriate solution method using math principles to prove that "the pressure at a point in a fluid has the same magnitude in all directions". Support your answer with sketch. Answer: Px Pz = Pn P are the mean pressures at the three surfaces in the x- and z-directions. Q2: Formulate the issue and identify key variables to prove that [AP = P2 - P, = pg Az = y, Az], where y, and p are the specific weight and density of the fluid, respectively. Az is the vertical distance. Support your answer with sketch. Q3: From fluid mechanics science perspective, define the center of gravity and the center of pressure. Q4: Identify the hydrostatic force acting on the top surface of a submerged rectangular plate by applying principles of engineering for the following cases: 1 tilted plate, (2 vertical plate, and 3 horizontal plate. Support your answer with sketch. Q5: By applying principles of fluid mechanics science, define the "rigid-body" and identify its features. Q6: Formulate the issue…
n = 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.

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