A piston having a diameter 0.15 m and a length of 0.25 m as shown in figure (1.2) slides downward with a velocity (V) through a vertical pipe. The downward motion is resisted by an oil film between the piston and the pipe wall. The film thickness is 5*10 m, and the cylinder weighs 2.22 N. Estimate V if the oil viscosity is 0.016 N.s/m². Assume the velocity distribution in the gap is linear. 2. Figure (1.1) W

A piston having a diameter 0.15 m and a length of 0.25 m as shown in figure (1.2) slides downward with a velocity (V) through a vertical pipe. The downward motion is resisted by an oil film between the piston and the pipe wall. The film thickness is 5*10 m, and the cylinder weighs 2.22 N. Estimate V if the oil viscosity is 0.016 N.s/m². Assume the velocity distribution in the gap is linear. 2. Figure (1.1) W

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

See similar textbooks

Similar questions

An incompressible fluid (kinematic viscosity, 7.4 x10-7 m²/s, specific gravity, 0.88) is held between two parallel plates. If the top plate is moved with a velocity of 0.5 m/s while the bottom one is held stationary, the fluid attains a linear velocity profile in the gap of 0.5 mm between these plates; the shear stress in Pascals on the surface of top plate is (a) 0.651 x 10-3 (c) 6.51 (b) 0.651 (d) 0.651 x 103
QA An incompressible fluid (kinematic viscosity, 7.4 x10-7 m2/s, specific gravity, 0.88) is held between two parallel plates. If the top plate is moved with a velocity of 0.5 m/s while the bottom one is held stationary, the fluid attains a linear velocity profile in the gap of 0.5 mm between these plates; the shear stress in Pascals on the surface of top plate is (a) 0.651 x 10-3 (c) 6.51 (b) 0.651 (d) 0.651 x 103
Create the simulation model of the 3-tank system shown in Figure. S= 0,25 m2 SO=0,00065 m2 H=0,2 m Q1=0,008 m/s Q2-0,005m/s Simulate the course of the liquid level positions for different initial conditions and evaluate the steady state values. Case a: Case c: h10=1,2m h20=1m h30-0,7m Case b: h10-0,8m h20=1m h10-1,2m h20-1m h30=0,7m h30-0,1m
Answer with True or False of the following question: (7M 1. Water flows steadily down a vertical pipe of constant cross section. Neglecting friction, according to Bernoulli's equation, velocity decreases with height. 2. A liquid in an open right circular cylinder is given rigid body rotation about the axis of the cylinder. The pressure distribution in any vertical plane is uniform. 3. A curved surface is submerged in a static liquid. The horizontal component of pressure force on it is equal to the pressure force on a vertical projection of the surface. 4. A U-tube manometer measures the difference in total energy between two points.
FLUID MECHANICS: Find the flow rate of water through the system shown for the turbine to produce 20 kW. Neglect friction in your calculations ANSWER SHOULD BE: Q=10.75m3/s
Water flows through a Venturi meter, as shown in the figure. The pressures of the water at locations a and b in the pipe support columns of water that differ in height by L = 12 in. The atmospheric pressure is 14.7 Ibf/in?, the specific volume of water is 0.01604 ft/lb, and the acceleration of gravity is g = 32.0 ft/s?. Patm = 14.7 Ibr/in.? g = 32.0 ft/s² Water v = 0.01604 ft/lb Determine the difference in pressure between points a and b, in Ibf/in2?. Does the pressure increase or decrease from point a to point b? Sten 1
Water flows through a Venturi meter, as shown in the figure. The pressures of the water at locations a and b in the pipe support columns of water that differ in height by L = 12 in. The atmospheric pressure is 14.7 Ibf/in?, the specific volume of water is 0.01604 ft3/lb, and the acceleration of gravity is g = 32.0 ft/s?. Patm = 14.7 Ibf/in.? g = 32.0 ft/s² Water v = 0.01604 ft³/lb Determine the difference in pressure between points a and b, in Ibf/in?. Does the pressure increase or decrease from point a to point b?
338 B/s O 1: 56% E 3:01 Question: Gasoline is flowing through this 180° pipe bend. The pipe cross-sectional area is 18 in?. Take the pipe weight as 5 Kg. Flow rate is 0.5 liters/s. Pressure at section-1 6 psia, pressure at section-2 is 4 psia. Calculate the anchoring force required to hold this pipe and also show its direction, referenced to proper 2-dimensional a cartesian coordinate system. (2 1
In an oil pool, a small steel ball is released from the surface (y=0) without initial velocity. The strength of the resistance force exerted by the oil against the movement of the ball is directly proportional to the speed of the ball (Fd = k*V , k: constant). Neglect the buoyant force exerted by the oil. (m = 0.2kg, k = 0.843550 kg/s, g = 9.81 m/s^2). a-) What is the limit speed of ball ( Vlim)? b-) What is the time it takes for the speed of the ball to reach 99% of the limit speed after it is released from the surface? c-) What is the depth at which the ball's velocity reaches 99% of the limit velocity after it is released from the surface?
A Closed tank of water with Length, I = 20 ft Height, h = 10.45 ft %3D Width, w = 5.6 ft Pgage = 0 kPa at the top before acceleration is accelerating at an angle of 38° with respect to the horizontal, where the x component of the acceleration is parallel to that of the length of the tank at a rate of 6.35 ft/s² . If the tank is 76% %3D full, calculate the pressure at the bottom of the left side of the tank and the force acting at the top of the tank during acceleration. Take note that the tank is fixed such that it remains parallel to the horizontal during acceleration
1) A cylindrical capsule filled by liquid with SG = 1.5 is falling inside a pipe, as depicted in the figure. The small space between the capsule and the pipe is lubricated with an oil film that has viscosity (u =0.1 x 10-3Pa.s).. Find the steady Pipe Oil film rate of descent of a capsule with diameter d = 50 mm, and length / = 100 mm sliding inside a vertical smooth pipe that has inside diameter D = 52 mm. Assume that the capsule is concentric with the pipe as it falls. Capsule 2) A Plate is dragging between two walls by a velocity of 0.054 m/s. The space between plate and lower wall is 30 mm and filled with oil while the space between the plate and the upper wall is 20 mm and filled with water. The velocity distribution in oil between plate and lower wall is given by: u = 60(0.06y – y?), where y is measured in m and u in m/s. determine the force p that is required to maintain the velocity of plate when the area of plate is 1 m2. Upper wall D2 Water Plate P. D1 Oil Lower wall
A fuel tank in wing has dimensions in Fig. 1, where the width is equal to the height and the tank is half full. The aircraft undergoes lateral acceleration due to non-zero sideslip, but level flight with level wings. The aircraft is flying at an altitude of 20000ft in ISA+0. The velocity of the aircraft is V=160m/s, with a radius of 5000m. The tanks vents to a port that is 250Pa above the freestream static pressure. The fuel has a specific gravity of 0.825. Use g=9.80665m/s². Calculate the absolute pressure at point A. h W Lateral direction Point A 1₁ Figure 1. Fuel tank undergoing lateral acceleration