Study of Vertical Plane Turbulent Jets and Plumes
Author | : B. R. Ramaprian |
Publisher | : |
Total Pages | : 434 |
Release | : 1983 |
Genre | : Jets |
ISBN | : |
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Author | : B. R. Ramaprian |
Publisher | : |
Total Pages | : 434 |
Release | : 1983 |
Genre | : Jets |
ISBN | : |
Author | : P.A. Davies |
Publisher | : Springer Science & Business Media |
Total Pages | : 513 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 9401109184 |
Challenging problems involvrllg jet and plume phenomena are common to many areas of fundamental and applied scientific research, and an understanding of plume and jet behaviour is essential in many geophysical and industrial contexts. For example, in the field of meteorology, where pollutant dispersal takes place by means of atmospheric jets and plumes formed either naturally under conditions of convectively-driven flow in the atmospheric boundary layer, or anthropogenically by the release of pollutants from tall chimneys. In other fields of geophysics, buoyant plumes and jets are known to play important roles in oceanic mixing processes, both at the relatively large scale (as in deep water formation by convective sinking) and at the relatively small scale (as with plume formation beneath ice leads, for example). In the industrial context, the performances of many engineering systems are determined primarily by the behaviour of buoyant plumes and jets. For example, (i) in sea outfalls, where either sewage or thermal effluents are discharged into marine and/or freshwater environments, (ii) in solar ponds, where buoyant jets are released under density interfaces, (iii) in buildings, where thermally-generated plumes affect the air quality and ventilation properties of architectural environments, (iv) in rotating machinery where fluid jet~ are used for cooling purposes, and (v) in long road and rail tunnels, where safety and ventilation prcedures rely upon an understanding of the behaviour of buoyant jets. In many other engineering and oceanographic contexts, the properties of jets and plumes are of great importance.
Author | : Wolfgang Rodi |
Publisher | : Elsevier |
Total Pages | : 193 |
Release | : 2014-05-09 |
Genre | : Technology & Engineering |
ISBN | : 1483189872 |
The Science & Applications of Heat and Mass Transfer: Reports, Reviews, & Computer Programs, Volume 6: Turbulent Buoyant Jets and Plumes focuses on the formation, properties, characteristics, and reactions of turbulent jets and plumes. The selection first offers information on the mechanics of turbulent buoyant jets and plumes and turbulent buoyant jets in shallow fluid layers. Discussions focus on submerged buoyant jets into shallow fluid, horizontal surface or interface jets into shallow layers, fundamental considerations, and turbulent buoyant jets (forced plumes). The manuscript then examines a turbulence model for buoyant flows and its application to vertical buoyant jets, including mathematical model, calculation of vertical buoyant jets, and explanation of velocity and temperature spreading in pure jets and pure plumes. The publication is a dependable reference for scientists and readers interested in turbulent buoyant jets and plumes.
Author | : Mark R. Loewen |
Publisher | : |
Total Pages | : 0 |
Release | : 1984 |
Genre | : Interference (Aerodynamics) |
ISBN | : |
The problem of a vertical plane jet-plume in shallow water was investigated experimentally and analytically. The four distinct regions of flow are the jet-plume region, surface impingement region, internal hydraulic jump region and the stratified counterflow region. Only the first three were studied in detail. The experiments concentrated on the surface impingement and internal hydraulic jump regions. Velocity profiles and dye photographs were compiled for six runs. An additional 13 runs were done in which only dye photographs were taken. The velocity profiles and scale.data were then analyzed and plotted. The analytical portion of the study consisted of three parts. The first was the development of the plane jet-plume equations. The second part was a control volume type of analysis of the surface impingement region. This yielded an equation for the impingement depth of the surface layer. The third part was a momentum analysis of the internal hydraulic jump region. Two distinct equations were developed. The experimental data was compared to the predictions of the theoretical equations. The variations of the velocity and length scales were compared to the case of a plane non-buoyant surface discharge.
Author | : Ching Jen Chen |
Publisher | : Pergamon |
Total Pages | : 104 |
Release | : 1980 |
Genre | : Technology & Engineering |
ISBN | : |
Author | : B. R. Ramaprian |
Publisher | : |
Total Pages | : 378 |
Release | : 1983 |
Genre | : Jets |
ISBN | : |
Author | : Joseph Hun-wei Lee |
Publisher | : Springer Science & Business Media |
Total Pages | : 391 |
Release | : 2012-12-06 |
Genre | : Science |
ISBN | : 1461504074 |
Jets and plumes are shear flows produced by momentum and buoyancy forces. Examples include smokestack emissions, fires and volcano eruptions, deep sea vents, thermals, sewage discharges, thermal effluents from power stations, and ocean dumping of sludge. Knowledge of turbulent mixing by jets and plumes is important for environmental control, impact and risk assessment. Turbulent Jets and Plumes introduces the fundamental concepts and develops a Lagrangian approach to model these shear flows. This theme persists throughout the text, starting from simple cases and building towards the practically important case of a turbulent buoyant jet in a density-stratified crossflow. Basic ideas are illustrated by ample use of flow visualization using the laser-induced fluorescence technique. The text includes many illustrative worked examples, comparisons of model predictions with laboratory and field data, and classroom tested problems. An interactive PC-based virtual-reality modelling software (VISJET) is also provided. Engineering and science students, researchers and practitioners may use the book both as an introduction to the subject and as a reference in hydraulics and environmental fluid mechanics.
Author | : Ching Jen Chen |
Publisher | : |
Total Pages | : 94 |
Release | : 1976 |
Genre | : Fluid dynamics |
ISBN | : |
Author | : Flemming Bo Pedersen |
Publisher | : Springer |
Total Pages | : 296 |
Release | : 1986 |
Genre | : Science |
ISBN | : |
Author | : N. Rajaratnam |
Publisher | : Elsevier |
Total Pages | : 315 |
Release | : 1976-01-01 |
Genre | : Science |
ISBN | : 0080869963 |
Turbulent Jets