Автор |
ZVIRIN, Y. |
Автор |
R HEWITT, G. |
Автор |
KENNING, D. B. R. |
Дата выпуска |
1990 |
dc.description |
AbstractExperiments have been conducted to measure drag (Cg) and heat transfer coefficients (h) and to study the boding nature on heated spheres free-falling in saturated and subcooled water. Simultaneous measurements of the transient sphere velocity and temperature during the fall enabled calculation of cD, heat fluxes and h values. It has been found that the drag decreases with the initial sphere temperature, T0. The measured results, as well as still and motion photography, show that at10⩾ 450° Cfilm boiling pre vaih, with low heat fluxes at the beginning of the transient. In some cases the film collapses, leading to a transition to disturbed-film and micro-bubble regimes, associated with larger heat fluxes and also solid-liquid interactions, with lateral motion of the sphere )“ shoot-off” ) |
Формат |
application.pdf |
Издатель |
Taylor & Francis Group |
Копирайт |
Copyright Taylor and Francis Group, LLC |
Название |
BOILING ON FREE-FALLING SPHERES: DRAG AND HEAT TRANSFER COEFFICIENTS |
Тип |
other |
DOI |
10.1080/08916159008946386 |
Electronic ISSN |
1521-0480 |
Print ISSN |
0891-6152 |
Журнал |
Experimental Heat Transfer |
Том |
3 |
Первая страница |
185 |
Последняя страница |
214 |
Аффилиация |
ZVIRIN, Y.; Faculty of Mechanical Engineering, Technion |
Аффилиация |
R HEWITT, G.; Faculty of Mechanical Engineering, Technion |
Аффилиация |
KENNING, D. B. R.; Faculty of Mechanical Engineering, Technion |
Выпуск |
3 |