STATISTICAL AND SPECTRAL PROPERTIES OF TRACER CONCENTRATION IN ROUND BUOYANT JETS

被引：72

作者：

PAPANICOLAOU, PN

LIST, EJ

机构：

[1] California Inst of Technology,, Pasadena, CA, USA, California Inst of Technology, Pasadena, CA, USA

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 1987年 / 30卷 / 10期

关键词：

D O I：

10.1016/0017-9310(87)90086-X

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

Spatial growth, temperature decay, and turbulence structure have been studied experimentally in axially-symmetric buoyant jets in transition to plumes and in fully developed plume flows. Temperature records obtained with fast response thermistors located in these flows form the basis for the study. The results obtained support previous asymptotic arguments pertaining to the rate of decay of mean temperature and r. m. s. temperature fluctuations. Spectral energy distributions in jets and plumes show that the evolution from buoyant jets to plumes is characterized by a significant shift in the wave number distribution of from buoyant jets to plumes is characterized by a significant shift in the wave number distribution of from buoyant jets to plumes is characterized by a significant shift in the wave number distribution of temperature variance density.

引用

页码：2059 / 2071

页数：13

共 36 条

[1]

ABRAHAM G, 1960, P ASCE J HYD DIV, V86, P1

[2] CONDITIONALLY SAMPLED MEASUREMENTS IN A HEATED TURBULENT JET [J].