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(10 pts.) #5. Oil of kinematic viscosity 50 x 10 ft/s is to be used in...
7.87 A 1:40 scale model of a ship is to be tested in a towing tank. Determine the required kinema...
7.87 A 1:40 scale model of a ship is to be tested in a towing tank. Determine the required kinematic viscosity of the model fluid so that both the Reynolds number and the Froude number are the same for model and prototype. Assume the prototype fluid to be seawater at 60 F. Could any of the liquids with viscosities given in Fig. B.2 in Appendix B be used as the model fluid?
7.87 A 1:40 scale model of a ship...
A hydraulic oil with a kinematic viscosity of 4 x 10-4 m2/s and specific gravity of...
A hydraulic oil with a kinematic viscosity of 4 x 10-4 m2/s and specific gravity of 0.89 flows in a 22 mm diameter pipe at 3 m/s. Determine the head loss (in bar) due to friction for a 95 m long pipe.?
3 x 10-6 m2/s, estimate the i) (1 pes.) The kinematic viscosity Reynolds number for the...
3 x 10-6 m2/s, estimate the i) (1 pes.) The kinematic viscosity Reynolds number for the flow around a particle of size on the order of 1 μ m (= 10° m), assuming the velocity of the flow is on the order of 1 cm/s. Would "creeping flow" be a good approximation to the flow? Recall Re pULIp. し μ/ρ of a fluid is about
Q1. (a) For a flow phenomenon governed mainly by viscous forces, derive the scale factors for...
Q1. (a) For a flow phenomenon governed mainly by viscous forces, derive the scale factors for velocity, force and power in terms of 24, , and I, where subscripts L, p and u are length, density and dynamic viscosity respectively and is the ratio of the value of "x" in the prototype to the value of "x" in the model. [4 marks) (b) Volumetric flow rate (discharge) Q through a circular pipe with diameter D can be measured by measuring...
3 Question 5. (10 pts) Viscosity: Two flat plates are shown in figure on the right....
3 Question 5. (10 pts) Viscosity: Two flat plates are shown in figure on the right. The top plate is located at a distance b above the fixed plate and it is pulled along with constant speed V. The other thin plate is located a distance cb above the fixed plate, where (<e<1. This plate moves with speed V2, which is determined by the viscous shear forces 12 imposed on it by the fluids on its top and bottom. The...
Question 12 10 pts For 0.15 m/s of glycerin at 40°C (sg = 1.26, dyn viscosity...
Question 12 10 pts For 0.15 m/s of glycerin at 40°C (sg = 1.26, dyn viscosity = 0.3 Paos from ApxD) flowing in the chamber outside of the square tubes as shown in the figure. Determine the Reynolds number. Both 200 mm square outside - 400 mm hs - 600 mm NT NE
#2 The following system sends methyl alcohol (sg-0.789, kinematic viscosity 1.27 x 10* ft'/sec.) at a...
#2 The following system sends methyl alcohol (sg-0.789, kinematic viscosity 1.27 x 10* ft'/sec.) at a flowrate of s0 gpm through a cross section given below. The methyl alcohol flows out of the tank at a duct that has the cross section below. In this cross section, the methyl ethyl flows through the outer part of the inner tubes for a distance of 100 feet before it encounters a fluid motor. For this cross section,consider the cross section surface material...
4. (10 pts) A Newtonian liquid of viscosity u and den- sity p flows under the...
4. (10 pts) A Newtonian liquid of viscosity u and den- sity p flows under the impetus of gravity betwecen 2 parallel plates a distance b apart, both being inclined at an angle 0 (Fig. 2). For this laminar, steady flow, the velocity component in the flow direction, u(y), is governed by the momentum equation y -flow b x and the remaining velocity components are v-w 0. If the no-slip boundary condition applies at the walls, ie, u(0) = u(b)...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure of a liquid in order to move it through a piping system. The pump is driven by a motor, which must provide sufficient power to operate the pump at the desired conditions. You wish to find the pressure developed by a pump operating at a flow rate of 300 gpm with an oil having a specific gravity (SG) of 0.8 and a viscosity of...
N5D.4 (e) and (f) both sides of the x component of Newton's second lav v, and take the indefinite integral of both sides.) Rich- N5D.4 We have seen that the drag force between a fluid and an...
N5D.4 (e) and (f)
both sides of the x component of Newton's second lav v, and take the indefinite integral of both sides.) Rich- N5D.4 We have seen that the drag force between a fluid and an object moving through that fluid is proportional to 2 if the object is big and/or fast and/or the fluid is not a m ery viscous but is proportional to löl if the object is small Slo At kin d/or slow and/or the fluid...
7.87 A 1:40 scale model of a ship is to be tested in a towing tank. Determine the required kinematic viscosity of the model fluid so that both the Reynolds number and the Froude number are the same for model and prototype. Assume the prototype fluid to be seawater at 60 F. Could any of the liquids with viscosities given in Fig. B.2 in Appendix B be used as the model fluid?
7.87 A 1:40 scale model of a ship...
3 x 10-6 m2/s, estimate the i) (1 pes.) The kinematic viscosity Reynolds number for the flow around a particle of size on the order of 1 μ m (= 10° m), assuming the velocity of the flow is on the order of 1 cm/s. Would "creeping flow" be a good approximation to the flow? Recall Re pULIp. し μ/ρ of a fluid is about
Q1. (a) For a flow phenomenon governed mainly by viscous forces, derive the scale factors for velocity, force and power in terms of 24, , and I, where subscripts L, p and u are length, density and dynamic viscosity respectively and is the ratio of the value of "x" in the prototype to the value of "x" in the model. [4 marks) (b) Volumetric flow rate (discharge) Q through a circular pipe with diameter D can be measured by measuring...
3 Question 5. (10 pts) Viscosity: Two flat plates are shown in figure on the right. The top plate is located at a distance b above the fixed plate and it is pulled along with constant speed V. The other thin plate is located a distance cb above the fixed plate, where (<e<1. This plate moves with speed V2, which is determined by the viscous shear forces 12 imposed on it by the fluids on its top and bottom. The...
Question 12 10 pts For 0.15 m/s of glycerin at 40°C (sg = 1.26, dyn viscosity = 0.3 Paos from ApxD) flowing in the chamber outside of the square tubes as shown in the figure. Determine the Reynolds number. Both 200 mm square outside - 400 mm hs - 600 mm NT NE
#2 The following system sends methyl alcohol (sg-0.789, kinematic viscosity 1.27 x 10* ft'/sec.) at a flowrate of s0 gpm through a cross section given below. The methyl alcohol flows out of the tank at a duct that has the cross section below. In this cross section, the methyl ethyl flows through the outer part of the inner tubes for a distance of 100 feet before it encounters a fluid motor. For this cross section,consider the cross section surface material...
4. (10 pts) A Newtonian liquid of viscosity u and den- sity p flows under the impetus of gravity betwecen 2 parallel plates a distance b apart, both being inclined at an angle 0 (Fig. 2). For this laminar, steady flow, the velocity component in the flow direction, u(y), is governed by the momentum equation y -flow b x and the remaining velocity components are v-w 0. If the no-slip boundary condition applies at the walls, ie, u(0) = u(b)...
Chemical Engineering Fluid Mechanics 30. The purpose of a centrifugal pump is to increase the pressure of a liquid in order to move it through a piping system. The pump is driven by a motor, which must provide sufficient power to operate the pump at the desired conditions. You wish to find the pressure developed by a pump operating at a flow rate of 300 gpm with an oil having a specific gravity (SG) of 0.8 and a viscosity of...
N5D.4 (e) and (f)
both sides of the x component of Newton's second lav v, and take the indefinite integral of both sides.) Rich- N5D.4 We have seen that the drag force between a fluid and an object moving through that fluid is proportional to 2 if the object is big and/or fast and/or the fluid is not a m ery viscous but is proportional to löl if the object is small Slo At kin d/or slow and/or the fluid...
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