| contributor author | Moon, Joo Hyun | |
| contributor author | Choi, Chang Kyoung | |
| contributor author | Allen, Jeffrey S. | |
| contributor author | Lee, Seong Hyuk | |
| date accessioned | 2017-05-09T01:19:49Z | |
| date available | 2017-05-09T01:19:49Z | |
| date issued | 2015 | |
| identifier issn | 0022-1481 | |
| identifier other | ht_137_08_080909.pdf | |
| identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/158521 | |
| description abstract | This study aims to experimentally examine rebounding characteristics of a freefall droplet which impacts on a static droplet with a sphericalcap shape in a low Weber number range. Two wellaligned highspeed cameras were used for visualization of droplet behaviors after impact. From the image analysis, the influence of impact velocity, offset distance and static droplet volume on the rebound characteristics was examined. The results show that the dynamic contact angle and the contact diameter of a static droplet change significantly with time after impact. In particular, a substantial change in dynamic contact angles for different offset distances is also observed. Contact diameters are also varied larger with the increase in the impact velocity. It is thought that occurrence of droplet rebound may be because of airgap formation at the interface inhibiting viscous film drainage, coming from droplet oscillation before impact. | |
| publisher | The American Society of Mechanical Engineers (ASME) | |
| title | A rebounding droplet impacting on a static droplet | |
| type | Journal Paper | |
| journal volume | 137 | |
| journal issue | 8 | |
| journal title | Journal of Heat Transfer | |
| identifier doi | 10.1115/1.4030473 | |
| journal fristpage | 80909 | |
| journal lastpage | 80909 | |
| identifier eissn | 1528-8943 | |
| tree | Journal of Heat Transfer:;2015:;volume( 137 ):;issue: 008 | |
| contenttype | Fulltext | |