Turbulent Jets

Turbulent Jets PDF Author: N. Rajaratnam
Publisher: Elsevier
ISBN: 0080869963
Category : Science
Languages : en
Pages : 315

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Book Description
Turbulent Jets

Turbulent Jets

Turbulent Jets PDF Author: N. Rajaratnam
Publisher: Elsevier
ISBN: 0080869963
Category : Science
Languages : en
Pages : 315

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Book Description
Turbulent Jets

Turbulent Jets and Plumes

Turbulent Jets and Plumes PDF Author: Joseph Hun-wei Lee
Publisher: Springer Science & Business Media
ISBN: 1461504074
Category : Science
Languages : en
Pages : 391

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Book Description
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.

Turbulent Flows

Turbulent Flows PDF Author: Jean Piquet
Publisher: Springer Science & Business Media
ISBN: 3662035596
Category : Technology & Engineering
Languages : en
Pages : 767

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Book Description
obtained are still severely limited to low Reynolds numbers (about only one decade better than direct numerical simulations), and the interpretation of such calculations for complex, curved geometries is still unclear. It is evident that a lot of work (and a very significant increase in available computing power) is required before such methods can be adopted in daily's engineering practice. I hope to l"Cport on all these topics in a near future. The book is divided into six chapters, each· chapter in subchapters, sections and subsections. The first part is introduced by Chapter 1 which summarizes the equations of fluid mechanies, it is developed in C~apters 2 to 4 devoted to the construction of turbulence models. What has been called "engineering methods" is considered in Chapter 2 where the Reynolds averaged equations al"C established and the closure problem studied (§1-3). A first detailed study of homogeneous turbulent flows follows (§4). It includes a review of available experimental data and their modeling. The eddy viscosity concept is analyzed in §5 with the l"Csulting ~alar-transport equation models such as the famous K-e model. Reynolds stl"Css models (Chapter 4) require a preliminary consideration of two-point turbulence concepts which are developed in Chapter 3 devoted to homogeneous turbulence. We review the two-point moments of velocity fields and their spectral transforms (§ 1), their general dynamics (§2) with the particular case of homogeneous, isotropie turbulence (§3) whel"C the so-called Kolmogorov's assumptions are discussed at length.

Sprayed Concrete Lined Tunnels

Sprayed Concrete Lined Tunnels PDF Author: Alun Thomas
Publisher: CRC Press
ISBN: 0415365465
Category : Technology & Engineering
Languages : en
Pages : 2354

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Book Description
Practising engineers on site, in the design office or in client organizations will find this book an excellent introduction to the design and construction of sprayed concrete lined (SCL) tunnels. The complex behaviour of the early age behaviour of the sprayed concrete requires careful management. This book covers all aspects of SCL tunnelling – from the constituents of sprayed concrete to detailed design and management during construction. Although there is a close interdependence between all the facets of sprayed concrete, few engineers have the right breadth of experience and expertise, and this urgently needs to be transferred to the wider engineering community. Disseminating essential information for tunnelling engineers, Sprayed Concrete Lined Tunnels is key reading for all involved in or studying the process.

Recent Research Advances in the Fluid Mechanics of Turbulent Jets and Plumes

Recent Research Advances in the Fluid Mechanics of Turbulent Jets and Plumes PDF Author: P.A. Davies
Publisher: Springer Science & Business Media
ISBN: 9401109184
Category : Science
Languages : en
Pages : 513

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Book Description
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.

Environmental Hydraulics and Sustainable Water Management, Two Volume Set

Environmental Hydraulics and Sustainable Water Management, Two Volume Set PDF Author: J.H.W. Lee
Publisher: CRC Press
ISBN: 148226286X
Category : Science
Languages : en
Pages : 2342

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Book Description
This two-volume set, with cd-rom, comprises the Proceedings of the 4th International Symposium on Environmental Hydraulics & the 14th Congress of Asia and Pacific Division, International Association of Hydraulic Engineering and Research held in December 2004 in Hong Kong. Volume 1 covers the selected papers presented at the 4th Internation

The Aeronautical Quarterly

The Aeronautical Quarterly PDF Author:
Publisher:
ISBN:
Category : Aerodynamics
Languages : en
Pages : 690

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Book Description


Advances in Water Resources & Hydraulic Engineering

Advances in Water Resources & Hydraulic Engineering PDF Author: Changkuan Zhang
Publisher: Springer Science & Business Media
ISBN: 3540894659
Category : Science
Languages : en
Pages : 2335

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Book Description
"Advances in Water Resources and Hydraulic Engineering - Proceedings of 16th IAHR-APD Congress and 3rd Symposium of IAHR-ISHS" discusses some serious problems of sustainable development of human society related to water resources, disaster caused by flooding or draught, environment and ecology, and introduces latest research in river engineering and fluvial processes, estuarine and coastal hydraulics, hydraulic structures and hydropower hydraulics, etc. The proceedings covers new research achievements in the Asian-Pacific region in water resources, environmental ecology, river and coastal engineering, which are especially important for developing countries all over the world. This proceedings serves as a reference for researchers in the field of water resources, water quality, water pollution and water ecology. Changkuan Zhang and Hongwu Tang both are professors at Hohai University, China.

Ocean Disposal of Wastewater

Ocean Disposal of Wastewater PDF Author: Ian R. Wood
Publisher: World Scientific
ISBN: 9789812796028
Category : Science
Languages : en
Pages : 476

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Book Description
This book offers a comprehensive study on the subject of ocean disposal of treated and untreated sewage waste. The early chapters cover the philosophy of outfall design, properties of sewage from developed towns and an overview of water quality regulations in New Zealand, Great Britain and the U.S. Alternative ways of satisfying these regulations are discussed. The book also provides information required to design outfall pipelines and diffusers.

Journal of the Engineering Mechanics Division

Journal of the Engineering Mechanics Division PDF Author: American Society of Civil Engineers. Engineering Mechanics Division
Publisher:
ISBN:
Category : Mechanics, Applied
Languages : en
Pages : 630

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Book Description