engineering recuitment GATE CE 2023-24 Test Series Fluid Mechanics Dimensional and Model Analysis Similarity
A 1 : 6 scale model of a passenger car is tested in a wind tunnel. The prototype velocity is 60 km/hr. The model drag is 250 N. The air in the model and prototype can be assumed to have the same properties. Which of the following statements are true?
1
The drag force on the prototype is 250 N
2
Power required to overcome the drag in the prototype is 4.167 kW
3
The drag force on the prototype is 0.25 N
4
The power required to overcome the drag in the prototype is 4.167 W