| contributor author | Zhang, Wei | |
| contributor author | Samtaney, Ravi | |
| date accessioned | 2017-11-25T07:16:38Z | |
| date available | 2017-11-25T07:16:38Z | |
| date copyright | 2017/1/9 | |
| date issued | 2017 | |
| identifier issn | 0098-2202 | |
| identifier other | fe_139_12_121202.pdf | |
| identifier uri | http://138.201.223.254:8080/yetl1/handle/yetl/4234107 | |
| description abstract | We perform global linear stability analysis on low-Re flow past an isolated cylinder with rounded corners. The objective of the present work is to investigate the effect of cylinder geometry (corner radius) on the stability characteristics of the flow. Our investigation sheds light on new physics that the flow can be stabilized by partially rounding the cylinder in the critical and weakly supercritical flow regimes. The flow is first stabilized and then gradually destabilized as the cylinder varies from square to circular geometry. The sensitivity analysis reveals that the variation of stability is attributed to the different spatial variation trends of the backflow velocity in the near- and far-wake regions for various cylinder geometries. The results from the stability analysis are also verified with those of the direct simulations, and very good agreement is achieved. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | Effect of Corner Radius in Stabilizing the Low-Re Flow Past a Cylinder | |
| type | Journal Paper | |
| journal volume | 139 | |
| journal issue | 12 | |
| journal title | Journal of Fluids Engineering | |
| identifier doi | 10.1115/1.4037494 | |
| journal fristpage | 121202 | |
| journal lastpage | 121202-11 | |
| tree | Journal of Fluids Engineering:;2017:;volume( 139 ):;issue: 012 | |
| contenttype | Fulltext | |