Entrainment by a Jet at a Density Interface in a Thermally Stratified Vessel

Autor:	J. J. Lorenz, P. A. Howard
Rok vydání:	1979
Předmět:	Physics Hydrogen compounds Mechanical Engineering Drop (liquid) Rise rate Thermodynamics Mechanics Condensed Matter Physics Physics::Fluid Dynamics symbols.namesake Mechanics of Materials Thermocouple Thermal Froude number symbols General Materials Science Jet impingement
Zdroj:	Journal of Heat Transfer. 101:538-542
ISSN:	1528-8943 0022-1481
DOI:	10.1115/1.3451024
Popis:	A study was conducted to determine the thermal behavior and upward movement of the density interface resulting from entrainment by an impinging jet in a thermally stratified vessel. Experiments were performed using a cylindrical vessel with water as the test fluid. The upward movement of the interface was detected by vertical strings of closely spaced thermocouples. As the interface passed a given thermocouple location, the temperature was observed to drop abruptly while oscillating in the process. It was found that vigorous entrainment and mixing maintain a relatively sharp temperature “step” in the impingement region. Using the theory of free submerged jets, a correlation was developed for the rise rate of the interface in terms of the Froude number based on local jet impingement parameters.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::3190bc5a83676587eea51bfc7bd6ea44 https://doi.org/10.1115/1.3451024 Zobrazit plný text záznamu