Loading...
Please wait, while we are loading the content...
Similar Documents
Ventilated cavity flow over a backward-facing step
| Content Provider | Semantic Scholar |
|---|---|
| Author | Pearce, Bryce W. Brandner, Paul A. Foster, S. J. |
| Copyright Year | 2015 |
| Abstract | Ventilated cavities detaching from a backward facing step (BFS) are investigated for a range of upstream boundary layer thicknesses in a cavitation tunnel. The upstream turbulent boundary layer thickness is varied by artificial thickening of the test section natural boundary layer using an array of transversely injected jets. Momentum thickness Reynolds numbers from 6.6 to 44 x 103 were tested giving boundary layer thickness to step height ratios from 1.25 to 3.8. A range of cavity lengths were obtained by variation of the ventilation flow rate for several freestream Reynolds numbers. Cavity length to step height ratios from 20 to 80 were achieved. Cavity length was found to be linearly dependent on ventilation rate and to decrease with increasing boundary layer thickness and/or Reynolds number. This result may have implications in the practical optimization of these flows which occur in applications such as drag reduction on marine hull forms. |
| Starting Page | 012164 |
| Ending Page | 012164 |
| Page Count | 1 |
| File Format | PDF HTM / HTML |
| DOI | 10.1088/1742-6596/656/1/012164 |
| Alternate Webpage(s) | http://ecite.utas.edu.au/X/6382AFC477F25331E0530300020AFE69 |
| Alternate Webpage(s) | https://doi.org/10.1088/1742-6596%2F656%2F1%2F012164 |
| Volume Number | 656 |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
