Preview Questions Aerodynamics Engineer | Role Specific Skill

Question 1: What impact does increasing the aspect ratio of a vehicle's rear spoiler have on aerodynamic performance in wind tunnel testing?

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It decreases the lift-to-drag ratio

It has no significant impact on overall performance

It makes the model more unstable at high speeds

It increases rear downforce while reducing drag

Question 2: How does the no-slip condition affect fluid flow near solid boundaries?

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Reduces temperature gradients

Eliminates turbulence

Creates a uniform velocity profile

Generates vorticity

Question 3: When simulating the airflow over a vehicle in CFD, which of the following is the most significant source of error in the results?

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Inaccurate time step in transient simulations

Over-simplification of vehicle shape

Poor mesh quality in high-gradient regions

Incorrect initial velocity boundary conditions

Question 4: How does the aspect ratio of a vehicle's body influence aerodynamic drag?

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Higher aspect ratio increases drag

Drag decreases exponentially with aspect ratio

Higher aspect ratio reduces drag

Aspect ratio has no effect on drag

Question 5: In wind tunnel testing, what does a Reynolds number scaling mismatch between the model and full-scale vehicle indicate?

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Accuracy of aerodynamic testing

Inconsistent drag coefficients

Inadequate wall effects simulation

Excessive turbulence in testing

Question 6: When considering vehicle handling, how does aerodynamic lift affect cornering performance at high speeds?

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Increased lift improves cornering by reducing tire friction

Lift is negligible in vehicle handling performance

Excess lift decreases traction, reducing cornering stability

Lift has no effect on cornering at high speeds