Preview Questions Aerodynamics Engineer | Role Specific Skill

Question 1: What is the main limitation of using a rolling road in automotive wind tunnel testing?

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Limited ability to simulate real tire-road interactions

Complexity in maintaining steady flow

High computational demand

Difficulty in simulating crosswind conditions

Question 2: How does the "turbulence intensity" affect the accuracy of CFD results in vehicle aerodynamics at high speeds?

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Higher turbulence intensity causes numerical instability

Higher turbulence intensity improves boundary layer resolution

Higher turbulence intensity results in more accurate results

Higher turbulence intensity reduces drag

Question 3: What effect does using a wind tunnel with an open test section have on the results compared to a closed test section?

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It requires complex flow simulation techniques

It reduces boundary layer effects

It produces more realistic results

It has a higher turbulence intensity in the airflow

Question 4: In the context of CFD, what does mesh convergence refer to when simulating automotive aerodynamics?

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The flow behaves similarly across mesh densities

The solution does not change with mesh refinement

The solution accuracy improves with finer meshes

The turbulence model becomes irrelevant with finer meshes

Question 5: What is the effect of turbulence intensity in high-speed CFD simulations for vehicle aerodynamics?

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It decreases drag and increases vehicle stability

It reduces computational cost

It leads to higher drag and instability in wake regions

It has no effect on simulation outcomes

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