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A one-third scale model of an airplane is to be tested in water. The airplane has a velocity of 900 kmph in air at-50°C. The water temperature in the test section is 10°C. The properties of air at 1 atm and -50°C are as given below: p= 1.582 kg/m³ and μ = 1.474 x 10-5 kg/m.s. The properties of water at 1 atm and 10°C are as given below: p = 999.7 kg/m³ and μ = 1.307 x 10-³ kg/m.s. In order to achieve similarity between the model and the prototype, the water velocity on the model should be A 97 km/hr B 186 km/hr C 263 km/hr D 379 km/hr

A one-third scale model of an airplane is to be tested in water. The airplane has a velocity of 900 kmph in air at-50°C. The water temperature in the test section is 10°C. The properties of air at 1 atm and -50°C are as given below: p= 1.582 kg/m³ and μ = 1.474 x 10-5 kg/m.s. The properties of water at 1 atm and 10°C are as given below: p = 999.7 kg/m³ and μ = 1.307 x 10-³ kg/m.s. In order to achieve similarity between the model and the prototype, the water velocity on the model should be A 97 km/hr B 186 km/hr C 263 km/hr D 379 km/hr

Structural Analysis
Structural Analysis
6th Edition
ISBN:9781337630931
Author:KASSIMALI, Aslam.
Publisher:KASSIMALI, Aslam.
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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A one-third scale model of an airplane is to be tested in water. The airplane has a velocity of 900 kmph in air at-50°C. The water temperature in the test section is 10°C. The properties of air at 1 atm and - 50°C are as given below: p = 1.582 kg/m³ and μ = 1.474 x 10-5 kg/m.s. The properties of water at 1 atm and 10°C are as given below: p = 999.7 kg/m³ and μ = 1.307 x 10-3 kg/m.s. In order to achieve similarity between the model and the prototype, the water velocity on the model should be A 97 km/hr B 186 km/hr C 263 km/hr D 379 km/hr
Transcribed Image Text:A one-third scale model of an airplane is to be tested in water. The airplane has a velocity of 900 kmph in air at-50°C. The water temperature in the test section is 10°C. The properties of air at 1 atm and - 50°C are as given below: p = 1.582 kg/m³ and μ = 1.474 x 10-5 kg/m.s. The properties of water at 1 atm and 10°C are as given below: p = 999.7 kg/m³ and μ = 1.307 x 10-3 kg/m.s. In order to achieve similarity between the model and the prototype, the water velocity on the model should be A 97 km/hr B 186 km/hr C 263 km/hr D 379 km/hr
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