Loading...
Please wait, while we are loading the content...
Similar Documents
Bubble dynamics in vibrated liquids under normal and simulated low gravity environments
| Content Provider | Semantic Scholar |
|---|---|
| Author | Kana, Daniel D. |
| Copyright Year | 1967 |
| Abstract | Bubble dynamics in vibrated liquids is studied both analytically and experimentally for normal and simulated low gravity conditions. Attention is focused on migration of bubbles to various locations within the tank when axisymmetr ic dynamic p res su re conditions exist . A theory is developed to predict finite size bubble behavior, including na tura l frequencies of coupled axisymmetr ic modes of the sys tem as well as average induced buoyancy force imparted t o the bubble through the vibration. with experimental observations fo r a captive bubble in a ver t ical ly oriented tank and with results of a previous theory in which only sma l l bubbles a r e allowed. It is found that smal l bubble theory is no longer valid for bubbleto-tank radius ra t ios grea te r than 0.05. Calculated resu l t s a r e compared Additional experimental observations a r e performed in a horizontally oriented tank in which a captive bubble experiences ze ro gravity force in the horizontal direction. Longitudinal excitation of the sys tem in this condition readily causes bubble migration to various points in the tank, even for very low acceleration inputs. input conditions. bubble migration under orbital conditions. Similar bubble behavior i s displayed under random It is concluded that low noise level accelerations can cause |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | https://www.ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/19670021172.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
