Preview Questions Aerodynamics Engineer | Role Specific Skill

Question 1: Which numerical technique is used to minimize errors in transient CFD simulations?

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Explicit time integration

Central differencing

Implicit time integration

Upwind differencing

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: Which parameter is directly adjusted to simulate varying speeds of a car in a wind tunnel?

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Cross-sectional area

Angle of attack

Reynolds number

Wind tunnel air velocity

Question 4: How does aerodynamic lift affect the braking performance of a vehicle at high speeds?

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Increased lift enhances braking performance by reducing friction

Lift does not affect braking performance at high speeds

Excessive lift reduces tire traction, increasing braking distance

Lift reduces braking distance by improving tire grip

Question 5: How is the pressure-velocity coupling handled in CFD using the SIMPLE algorithm?

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By introducing artificial compressibility

By applying direct numerical simulation

By solving a single equation for both variables

By iteratively correcting velocity and pressure fields

Question 6: Why is blockage correction necessary in wind tunnel testing?

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To prevent inaccurate lift measurements

To account for tunnel wall effects on the flow

To improve test duration

To match scale Reynolds numbers