Preview Questions Aerodynamics Engineer | Role Specific Skill

Question 1: Why is achieving laminar flow around the vehicle body advantageous for performance?

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Enhances yaw stability

Reduces drag

Minimizes lift

Increases drag

Question 2: In fluid dynamics, what is the effect of a "compression wave" on the airflow around an automotive vehicle at supersonic speeds?

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It increases the drag due to shock wave formation

It increases the efficiency of the vehicle's fuel system

It reduces drag by compressing the air to higher densities

It stabilizes the airflow by reducing turbulence

Question 3: What is the primary limitation of open-loop wind tunnel testing for automotive aerodynamics?

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It requires very high-resolution models to work accurately

It does not simulate real-world driving conditions

It cannot simulate external environmental conditions

It cannot account for the effect of vehicle handling on aerodynamic forces

Question 4: What is the main disadvantage of using CFD instead of physical wind tunnel testing?

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Requires more physical prototypes

Limited ability to model simple flows

Inaccurate results

High computational cost

Question 5: In a transient CFD simulation, what does a large time step size typically result in?

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Reduced mesh dependency

Faster convergence

Increased accuracy

Loss of stability

Question 6: What type of data is obtained from surface pressure sensors during aerodynamic testing?

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Heat flux

Pressure distribution

Material strain

Flow velocity