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2. (20 pts) Chapter 7 Dimensional Analysis, Similitude and Modeling The drag of a sonar transducer...
2. (20 pts) Chapter 7 Dimensional Analysis. Similitude and Modeling The drag of a sonar transducer...
2. (20 pts) Chapter 7 Dimensional Analysis. Similitude and Modeling The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data....
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cd is related to the...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data....
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cd is related to the...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data....
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cp is related to the...
Problem 7-C: The aerodynamic drag of a new sports car is to be predicted at a...
Problem 7-C: The aerodynamic drag of a new sports car is to be predicted at a speed of 70.0 mi/h at an air temperature of 25°C. Automotive engineers build a one-fourth scale model of the car to test in a wind tunnel. The temperature of the wind tunnel air is also 25°C. The drag force is measured with a drag balance, and the moving belt is used to simulate the moving ground (from the car's frame of reference) Determine how...
human-powered torpedo is being designed for purpose of this competitions. The next year engineering students modeling is to determine the skin friction drag of the torpedo which is acting on L-4...
human-powered torpedo is being designed for purpose of this competitions. The next year engineering students modeling is to determine the skin friction drag of the torpedo which is acting on L-4 carea (perimeter times the length). The overall length of the prototype torpedo 4.5 m and the diameter D m. Prototype Specification requires the torpedo to travel fully in freshwater water (a lake) at T 20 C with velocity V-2.50m/s. The one-fourth el is used for testing in their universitys...
Fluid Mechanics QUESTION 3 State 2 applications of dimensional analysis. (a) (2 marks) (b) The drag force, Fo acting...
Fluid Mechanics
QUESTION 3 State 2 applications of dimensional analysis. (a) (2 marks) (b) The drag force, Fo acting on a ship is considered to be a function of the fluid density (p) viscosity (H). exavitlg). ship velocity (V), and characteristic length (). Using Buckingham П theorem, determine a set ofsuitable dimensionless numbers to describe the relationship.Fo f(p.H.g.V (4 marks) A 1:60 scale model of a ship is used in a water tank to simulate a ship speed of 10...
Chapter 2: Dimensional Analysis Exercise!l 2019 1. Amirul Asyraf's team is to design a human-powe...
how to do this?
Chapter 2: Dimensional Analysis Exercise!l 2019 1. Amirul Asyraf's team is to design a human-powered submarine for a design competition The overall length of the prototype submarine is 2.24 m, and its student designers hope that it can travel fully submerged through water at 0.560 m/s, The water is freshwater (a lake) at T-15°C. The design team builds a one-eighth scale model to test in ther university's wind tunnel. A shield surrounds the drag balance strut...
(40 pts) The drag force exerted on an automobile running at a constant speed of 30...
(40 pts) The drag force exerted on an automobile running at a constant speed of 30 m/s is to be determined by running flow tests on a 1/6 scale model in a water tunnel. The drag force is known to be a function of the characteristic length, L, describing the vehicle frontal section, the vehicle speed relative to the fluid, V, and the fluid density and viscosity. Dimensional analysis has shown the following dimensionless relationship: Cp = º(Re), where FD...
5. A spherical thermocouple bead of diameter D = 0.002 m (i.e. 2 mm) on the...
5. A spherical thermocouple bead of diameter D = 0.002 m (i.e. 2 mm) on the tip of a wire is used to measure tempera- ture of a low-speed, hot gas flow in a duct (Fig. 2). The gas' approach speed is U. = 2 m/sec and its respective density and viscosity are p = 1 kg/m3 and v = 2 x 10-5 m2/s. The coefficient of drag for such moderate flows is well- approximated by the curve fit Cp...
2. (20 pts) Chapter 7 Dimensional Analysis. Similitude and Modeling The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cd is related to the...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cd is related to the...
The drag of a sonar transducer is to be predicted, based on wind tunnel test data. The prototype, a 1-ft diameter sphere, is to be towed at 5 knots (i.e. 8.44 ft/s) in seawater at 40°F. The model is 6 in. in diameter and the drag of the model is measured to be 0.6 lbf for wind tunnel air temperature at 70°F 1) (5 pts) Use Buckingham Pi Theorem to prove that the drag coefficient Cp is related to the...
Problem 7-C: The aerodynamic drag of a new sports car is to be predicted at a speed of 70.0 mi/h at an air temperature of 25°C. Automotive engineers build a one-fourth scale model of the car to test in a wind tunnel. The temperature of the wind tunnel air is also 25°C. The drag force is measured with a drag balance, and the moving belt is used to simulate the moving ground (from the car's frame of reference) Determine how...
human-powered torpedo is being designed for purpose of this competitions. The next year engineering students modeling is to determine the skin friction drag of the torpedo which is acting on L-4 carea (perimeter times the length). The overall length of the prototype torpedo 4.5 m and the diameter D m. Prototype Specification requires the torpedo to travel fully in freshwater water (a lake) at T 20 C with velocity V-2.50m/s. The one-fourth el is used for testing in their universitys...
Fluid Mechanics
QUESTION 3 State 2 applications of dimensional analysis. (a) (2 marks) (b) The drag force, Fo acting on a ship is considered to be a function of the fluid density (p) viscosity (H). exavitlg). ship velocity (V), and characteristic length (). Using Buckingham П theorem, determine a set ofsuitable dimensionless numbers to describe the relationship.Fo f(p.H.g.V (4 marks) A 1:60 scale model of a ship is used in a water tank to simulate a ship speed of 10...
how to do this?
Chapter 2: Dimensional Analysis Exercise!l 2019 1. Amirul Asyraf's team is to design a human-powered submarine for a design competition The overall length of the prototype submarine is 2.24 m, and its student designers hope that it can travel fully submerged through water at 0.560 m/s, The water is freshwater (a lake) at T-15°C. The design team builds a one-eighth scale model to test in ther university's wind tunnel. A shield surrounds the drag balance strut...
(40 pts) The drag force exerted on an automobile running at a constant speed of 30 m/s is to be determined by running flow tests on a 1/6 scale model in a water tunnel. The drag force is known to be a function of the characteristic length, L, describing the vehicle frontal section, the vehicle speed relative to the fluid, V, and the fluid density and viscosity. Dimensional analysis has shown the following dimensionless relationship: Cp = º(Re), where FD...
5. A spherical thermocouple bead of diameter D = 0.002 m (i.e. 2 mm) on the tip of a wire is used to measure tempera- ture of a low-speed, hot gas flow in a duct (Fig. 2). The gas' approach speed is U. = 2 m/sec and its respective density and viscosity are p = 1 kg/m3 and v = 2 x 10-5 m2/s. The coefficient of drag for such moderate flows is well- approximated by the curve fit Cp...
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