Sample interview questions: What are the challenges associated with simulating turbulent flows?
Sample answer:
Challenges associated with simulating turbulent flows:
- Modeling turbulence accurately: Turbulence is a complex phenomenon that is governed by a wide range of scales, from large eddies to small-scale fluctuations. Accurately capturing all of these scales in a simulation is computationally expensive and challenging.
- Resolving the smallest scales: Turbulent flows exhibit a wide range of length scales, from large eddies down to very small scales. Accurately capturing the smallest scales is essential for obtaining accurate simulations, but this can be very computationally expensive.
- Dealing with nonlinearities: Turbulence is a highly nonlinear phenomenon, meaning that small changes in the initial conditions can lead to large changes in the flow field. This makes it difficult to predict the behavior of turbulent flows and to obtain accurate simulations.
- Ensuring numerical stability: … Read full answer
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