MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Computational Fluid Dynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The flux limiter (r) of the second-order upwind scheme is __________ |
| A. | r<sup>2</sup> |
| B. | ( frac{1}{2}r ) |
| C. | 2r |
| D. | r |
| Answer» E. | |
| 2. |
Find the normalized functional relationship between f and C for a uniform grid while using the second-order upwind scheme? |
| A. | ( tilde{ phi_f}= frac{1}{2} tilde{ phi_C} ) |
| B. | ( tilde{ phi_f}=- frac{1}{2} tilde{ phi_C} ) |
| C. | ( tilde{ phi_f}= frac{3}{2} tilde{ phi_C} ) |
| D. | ( tilde{ phi_f}=- frac{3}{2} tilde{ phi_C} ) |
| Answer» D. ( tilde{ phi_f}=- frac{3}{2} tilde{ phi_C} ) | |
| 3. |
What is the first term in the truncation error of the second-order upwind scheme?(Note: P is the flow variable at the central node). |
| A. | (- frac{3}{8}( Delta x)^2 phi_P ) |
| B. | (- frac{3}{8}( Delta x) phi_P ) |
| C. | (- frac{3}{8}( Delta x)^2 phi_P ) |
| D. | (- frac{3}{8}( Delta x) phi_P ) |
| Answer» B. (- frac{3}{8}( Delta x) phi_P ) | |
| 4. |
The second-order upwind scheme is ___________ than the general upwind scheme. |
| A. | less diffusive |
| B. | more diffusive |
| C. | less accurate |
| D. | less stable |
| Answer» B. more diffusive | |
| 5. |
The value at the face in the second order upwind scheme is calculated using _____________ |
| A. | interpolation |
| B. | extrapolation |
| C. | weighted average |
| D. | geometric mean |
| Answer» C. weighted average | |
| 6. |
The Second Order Upwind (SOU) scheme uses ____________ |
| A. | asymmetric linear profile |
| B. | symmetric linear profile |
| C. | asymmetric quadratic profile |
| D. | symmetric quadratic profile |
| Answer» B. symmetric linear profile | |