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where AP, is the frictional pressure...
Question 7 (1 point) The pressure drop per unit length of a smooth-walled pipe, through which water at 15.6 C is flowing, is to be determined with a 1:3 scale model. The velocity of the water is 0.1...
Question 7 (1 point) The pressure drop per unit length of a smooth-walled pipe, through which water at 15.6 C is flowing, is to be determined with a 1:3 scale model. The velocity of the water is 0.1 m/s. The model fluid is ethyl alcohol at 20 C. What is the required velocity of ethyl alcohol to maintain dynamic similarity. (Water: density 999 Kg/mA3, Dynamic viscosity-1.12E-3 N.s/mA2- Alcohol: density 789 Kg/mA3, Dynamic viscosity -1.19E-3 N.s/m*2) Discussion: Why would you use...
The drag force Fp on a smooth sphere falling in water depends on the sphere speed...
The drag force Fp on a smooth sphere falling in water depends on
the sphere speed V, the sphere density P. the density p and dynamic
viscosity of water, the sphere diameter Dand the gravitational
acceleration g. Using dimensional analysis with p. V and D as
repeating variables, determine suitable dimensionless groups to
obtain a reneral relationship between the drag force and the other
variables. If the same sphere were to fall through air, determine
the ratio of the drag...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - A...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - Ap/L. Determine an expression for the pressure roughness) horizontal pipe energy Ap ( L pV2 gradient for a pipe of diameter - d, flowing with a mean velocity - V. pVd'd d (b) If for a 75mm diameter pipe flowing with water at 0.25m/s the measured pressure drop is 120Pa/m What will be the...
Question 4 Oil flows with a velocity of 4 m/s through a 30 mm diameter tube....
Question 4 Oil flows with a velocity of 4 m/s through a 30 mm diameter tube. A model of this system is to be developed using standard air as the model fluid. The air velocity is to be 2 m/s. What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype? Kinematic viscosity of air = 16 x 105 m2/s, Kinematic viscosity of oil 1,2 x 103 m2/s 0.45 mm 0.8 mm...
7. (10 points) The pressure drop, AP, for flow through an orifice plate is a function...
7. (10 points) The pressure drop, AP, for flow through an orifice plate is a function of the orifice diameter d, the pipe diameter D, fluid density, p, fluid viscosity, H, and average velocity, v. Use the method of repeating variables to determine the appropriate dimensionless relationship.
how to find the reynold number and friction number? Test section: Rough pipe Test section diameter:...
how
to find the reynold number and friction number?
Test section: Rough pipe Test section diameter: 0.0254m Area 5.067x10-4m2 Water temperature : 27°C Pipe Length : 1m Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Theoretical value: Roughness: 0.0015 mm Flowrate, o (m^3/h) 1.4 Velocity(m/s) Reynold number, Re 0.767 Friction factor 1.2 0.658 1.0 0.548
how to find the reynold number and friction number? Test section: Rough pipe Test section diameter:...
how
to find the reynold number and friction number?
Test section: Rough pipe Test section diameter: 0.0254m Area 5.067x10-4m2 Water temperature : 27°C Pipe Length : 1m Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Theoretical value: Roughness: 0.0015 mm Flowrate, o (m^3/h) 1.4 Velocity(m/s) Reynold number, Re 0.767 Friction factor 1.2 0.658 1.0 0.548
Oil flows with a velocity of 4 m/s through a 30 mm diameter tube. A model...
Oil flows with a velocity of 4 m/s through a 30 mm diameter tube. A model of this system is to be developed using standard air as the model fluid The air velocity is to be 2 m/s What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype? Kinematic viscosity of air = 1.6 x 10-5 m2/s, Kinematic viscosity of oil = 1.2 x 10-3 m2/s 0.45 mm 0.8 mm 4.5...
Question The pressure drop Ap, along a straight pipe of diameter D has been experimentally studied,...
Question The pressure drop Ap, along a straight pipe of diameter D has been experimentally studied, and it is observed that for laminar flow of a given fluid and pipe, the pressure drop varies directly with the distance I, between pressure taps. Assume that Ap is a function of D and I, the velocity V, and the fluid viscosity H. Use dimensional analysis to deduce how pressure drop varies with pipe diameter. [Hint: Use the method of repeating variables, Ap...
Encircle the correct answer for the following questions: • What is the hydraulic diameter of a...
Encircle the correct answer for the following questions: • What is the hydraulic diameter of a rectangular air ventilation duet whose cross section is 1 m by 25 cm? (a) 25 cm (b) 40 cm (c) 100 cm (d) 75 cm (e) 50 cm Oil = 0.1kg/ms, specific gravity= 0.9] flows through a 50-m-long smooth 8-cm-diameter pipe. The maximum pressure drop for which laminar flow is expected is approximately • • (a) 40 kPa (b) 50 kPa (c) 60 kPa...
Question 7 (1 point) The pressure drop per unit length of a smooth-walled pipe, through which water at 15.6 C is flowing, is to be determined with a 1:3 scale model. The velocity of the water is 0.1 m/s. The model fluid is ethyl alcohol at 20 C. What is the required velocity of ethyl alcohol to maintain dynamic similarity. (Water: density 999 Kg/mA3, Dynamic viscosity-1.12E-3 N.s/mA2- Alcohol: density 789 Kg/mA3, Dynamic viscosity -1.19E-3 N.s/m*2) Discussion: Why would you use...
The drag force Fp on a smooth sphere falling in water depends on
the sphere speed V, the sphere density P. the density p and dynamic
viscosity of water, the sphere diameter Dand the gravitational
acceleration g. Using dimensional analysis with p. V and D as
repeating variables, determine suitable dimensionless groups to
obtain a reneral relationship between the drag force and the other
variables. If the same sphere were to fall through air, determine
the ratio of the drag...
3. (a) For the flow of a real fluid (p, u) in a rough (e measures losses lead to a pressure gradient along the pipe - Ap/L. Determine an expression for the pressure roughness) horizontal pipe energy Ap ( L pV2 gradient for a pipe of diameter - d, flowing with a mean velocity - V. pVd'd d (b) If for a 75mm diameter pipe flowing with water at 0.25m/s the measured pressure drop is 120Pa/m What will be the...
Question 4 Oil flows with a velocity of 4 m/s through a 30 mm diameter tube. A model of this system is to be developed using standard air as the model fluid. The air velocity is to be 2 m/s. What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype? Kinematic viscosity of air = 16 x 105 m2/s, Kinematic viscosity of oil 1,2 x 103 m2/s 0.45 mm 0.8 mm...
7. (10 points) The pressure drop, AP, for flow through an orifice plate is a function of the orifice diameter d, the pipe diameter D, fluid density, p, fluid viscosity, H, and average velocity, v. Use the method of repeating variables to determine the appropriate dimensionless relationship.
how
to find the reynold number and friction number?
Test section: Rough pipe Test section diameter: 0.0254m Area 5.067x10-4m2 Water temperature : 27°C Pipe Length : 1m Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Theoretical value: Roughness: 0.0015 mm Flowrate, o (m^3/h) 1.4 Velocity(m/s) Reynold number, Re 0.767 Friction factor 1.2 0.658 1.0 0.548
how
to find the reynold number and friction number?
Test section: Rough pipe Test section diameter: 0.0254m Area 5.067x10-4m2 Water temperature : 27°C Pipe Length : 1m Density at 27°C: 996.59 kg/m3 Dynamic viscosity at 27°C: 0.8509x10-3 Pas Theoretical value: Roughness: 0.0015 mm Flowrate, o (m^3/h) 1.4 Velocity(m/s) Reynold number, Re 0.767 Friction factor 1.2 0.658 1.0 0.548
Oil flows with a velocity of 4 m/s through a 30 mm diameter tube. A model of this system is to be developed using standard air as the model fluid The air velocity is to be 2 m/s What tube diameter is required for the model if dynamic similarity is to be maintained between model and prototype? Kinematic viscosity of air = 1.6 x 10-5 m2/s, Kinematic viscosity of oil = 1.2 x 10-3 m2/s 0.45 mm 0.8 mm 4.5...
Question The pressure drop Ap, along a straight pipe of diameter D has been experimentally studied, and it is observed that for laminar flow of a given fluid and pipe, the pressure drop varies directly with the distance I, between pressure taps. Assume that Ap is a function of D and I, the velocity V, and the fluid viscosity H. Use dimensional analysis to deduce how pressure drop varies with pipe diameter. [Hint: Use the method of repeating variables, Ap...
Encircle the correct answer for the following questions: • What is the hydraulic diameter of a rectangular air ventilation duet whose cross section is 1 m by 25 cm? (a) 25 cm (b) 40 cm (c) 100 cm (d) 75 cm (e) 50 cm Oil = 0.1kg/ms, specific gravity= 0.9] flows through a 50-m-long smooth 8-cm-diameter pipe. The maximum pressure drop for which laminar flow is expected is approximately • • (a) 40 kPa (b) 50 kPa (c) 60 kPa...
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