MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 8 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. |
Consider the diagrams. They give the NVD. The thick line represents the scheme. Which of these schemes is unbounded? |
| A. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10a.png"><img alt="The thick line represents the scheme giving the NVD - option a" class="alignnone size-full wp-image-252281" height="217" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10a.png" width="255"/></a> |
| B. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10b.png"><img alt="The thick line represents the scheme giving the NVD - option b" class="alignnone size-full wp-image-252282" height="221" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10b.png" width="257"/></a> |
| C. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10c.png"><img alt="The thick line represents the scheme giving the NVD - option c" class="alignnone size-full wp-image-252283" height="226" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10c.png" width="255"/></a> |
| D. | <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10d.png"><img alt="The thick line represents the scheme giving the NVD - option d" class="alignnone size-full wp-image-252284" height="223" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10d.png" width="252"/></a> |
| Answer» B. <a href="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10b.png"><img alt="The thick line represents the scheme giving the NVD - option b" class="alignnone size-full wp-image-252282" height="221" src="https://www.sanfoundry.com/wp-content/uploads/2019/11/computational-fluid-dynamics-questions-answers-convection-boundedness-criterion-q10b.png" width="257"/></a> | |
| 2. |
In the region where ( tilde{ phi_c}<0 ,and , tilde{ phi_c}>1, ) ___________ is dominant.(Note: ( tilde{ phi_c} ,and , tilde{ phi_f} ) are the normalized flow variables at the upwind node and the face). |
| A. | conduction |
| B. | convection |
| C. | radiation |
| D. | anti-diffusion |
| Answer» C. radiation | |
| 3. |
For a bounded higher-order scheme, ( tilde{ phi_f}=1 ,when , tilde{ phi_c} )= ____________(Note: ( tilde{ phi_c} ,and , tilde{ phi_f} ) are the normalized flow variables at the upwind node and the face). |
| A. | |
| B. | 0 |
| C. | 1 |
| D. | 0.5 |
| Answer» D. 0.5 | |
| 4. |
In the region where ( tilde{ phi_c}<0 , and , tilde{ phi_c}>1, ) a bounded scheme should have ( tilde{ phi_f} ) as that of the ____________(Note: ( tilde{ phi_c} ,and , tilde{ phi_f} ) are the normalized flow variables at the upwind node and the face). |
| A. | SMART scheme |
| B. | QUICK scheme |
| C. | Downwind scheme |
| D. | Upwind scheme |
| Answer» E. | |
| 5. |
For a scheme to be bounded, its functional relationship should be ____________ |
| A. | quadratic |
| B. | linear |
| C. | smooth |
| D. | continuous |
| Answer» E. | |
| 6. |
A higher-order scheme which is not of high-resolution will have ____________ |
| A. | overshoots |
| B. | undershoots |
| C. | undershoots and overshoots |
| D. | damping ratio |
| Answer» D. damping ratio | |
| 7. |
According to the Godunov s theorem, any linear monotonic scheme will be maximum ____________ |
| A. | first derivative |
| B. | first-order accurate |
| C. | second-order accurate |
| D. | second derivative |
| Answer» C. second-order accurate | |
| 8. |
The numerical convection schemes should be _________ |
| A. | upwind biased |
| B. | downwind biased |
| C. | upwind or downwind depending on the problem |
| D. | considering both upwind and downwind equally |
| Answer» B. downwind biased | |