Fox and McDonald's Introduction to Fluid Mechanics
9th Edition
ISBN: 9781118912652
Author: Philip J. Pritchard, John W. Mitchell
Publisher: WILEY
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Textbook Question
Chapter 3, Problem 34P
Compare the height due to capillary action of water exposed to air in a circular tube of diameter D = 0.5 mm, and between two infinite vertical parallel plates of gap a = 0.5 mm.
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Chapter 3 Solutions
Fox and McDonald's Introduction to Fluid Mechanics
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- The capillary effect in a glass tube of 3.7 mm diameter, when immersed in (1) water and (2) mercury are 8.2 mm and -3.6 mm respectively. Calculate the value of surface tension in contact with air for water and mercury in N/m. Take, the contact angle for water =00 and mercury =1300.arrow_forwardTwo capillary tubes with 4mm and 2mm inside diameters were inserted into a liquid of density 1.12gcm^-3. Calculate the surface tension of the liquid if the difference between the capillary rises in the tubes is 2cm. Assume contact angle Is zero.arrow_forwardEstimate the capillary depression for mercury in a glass capillary tube 2 mm in diameter. Use σ = 0.514 N/m and θ = 140°.arrow_forward
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- Calculate the capillary rise in cm in a glass tube of 3.0 mm diameter when immersed vertically in mercury. Take the surface tensions for mercury as 0.0725 N/m in contact with air. The specific gravity of mercury is 13.6.arrow_forwardThe surface tensions of mercury and water at 60 degrees Celcius are 0.47N/m and 0.0662 N/m, respectively. What capillary height changes will occur in these two fluids when they are in contact with air in a glass tube of radius 0.30mm? Use θ = 130° for mercury, and 0° for water; y = 132.3 kN/m3 for mercury and 9.650 kN/m3 for water. Provide the given along with its solution.arrow_forwardCompute the capillary rise in the tube of radius 1 mm for a mercury-air-glass interface with theta equal to 130 degrees considering that the temperature is 20 degrees Celsius. Note: surface tension = 0.028 N/m and density = 1000 kg/m^3 A. 15.2 mm B. 21.8 mm C. 22.6 mm D. 148 mmarrow_forward
- A cylindrical vessel of radius r has in its side wall a hole in which is horizontally joined a capillary tube of inner radius r and length l, as shown in the figure. This vessel contains oil of viscosity n. Determine the rate at which the oil level in the vessel falls as a function of height H.arrow_forwardWater is flowing from hole 1cm radius at the bottom of a closed cylindrical container of 2m diameter. If the height of the water in the container is 2 m and the pressure over the surface of water is 3 atm. calculate how much time it took until the container became empty?arrow_forwardU - tube is used to pressure the difference in water channel. p1= 1000 kg/m3. The orange fluid in the U - tube has a density: p2= 2000 kg/m3. The height a = 10 cm and h = 15 cm. If the pressure at point ① is 111 kPa, what is the pressure at point ② ?arrow_forward
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