V Wind tunnel test section km/h Model FD Moving belt Drag balance The aerodynamic drag of a new Volvo FH truck is to be predicted at a speed of 85 km/h at an air temperature of 25°C (p=1.184 kg/m³, u=1.849x10-5kg/m-s). Volvo engineers build a 1/2 scale model of the FH to test in a wind tunnel. The temperature of the wind tunnel is also 25°C. The dra force is measured with a drag balance, and the moving belt is used to simulate the moving groun Determine how fast the engineers should run the wind tunnel to achieve similarity between the model and the prototype.

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
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Wind tunnel test section
km/h
Model
FD
Moving belt Drag balance
The aerodynamic drag of a new Volvo FH truck is to be predicted at a speed of 85 km/h at an air
temperature of 25°C (p=1.184 kg/m³, u=1.849x10-5kg/m-s). Volvo engineers build a 1/2 scale
model of the FH to test in a wind tunnel. The temperature of the wind tunnel is also 25°C. The drag
force is measured with a drag balance, and the moving belt is used to simulate the moving ground.
Determine how fast the engineers should run the wind tunnel to achieve similarity between
the model and the prototype.
Transcribed Image Text:Wind tunnel test section km/h Model FD Moving belt Drag balance The aerodynamic drag of a new Volvo FH truck is to be predicted at a speed of 85 km/h at an air temperature of 25°C (p=1.184 kg/m³, u=1.849x10-5kg/m-s). Volvo engineers build a 1/2 scale model of the FH to test in a wind tunnel. The temperature of the wind tunnel is also 25°C. The drag force is measured with a drag balance, and the moving belt is used to simulate the moving ground. Determine how fast the engineers should run the wind tunnel to achieve similarity between the model and the prototype.
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