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E-book
Author Akhmetov, D.G. (Darvin Gazizovich)

Title Vortex rings / by D.G. Akhmetov
Published Berlin ; London : Springer, 2009

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Description 1 online resource
Contents Cover -- Contents -- Introduction -- 1 Theoretical Models of Vortex Rings -- 1.1 Vortex Rings -- 1.2 Equations of Motion. Vorticity, Circulation, and Stream Function -- 1.3 Vorticity Distribution and Velocity Field of a Vortex Ring -- 1.4 Integral Characteristics of a Vortex Ring -- 1.5 Circular Line Vortex of Zero Cross-Section -- 1.6 Vortex Ring with Finite Cross-Section (Lamb8217;s Model) -- 1.7 Hill8217;s Spherical Vortex -- 1.8 Family of Steady Vortex Rings -- 1.9 Translational Velocity of a Vortex Ring -- 2 Hydrodynamic Structure of a Vortex Ring -- 2.1 Experimental Procedure -- 2.2 Hot-Wire Anemometry: Method for Measuring Two-Dimensional Velocity Field -- 2.3 Estimations of Measurement Accuracy of Two-Dimensional Velocity Field with Hot-Wire Probes -- 2.4 Velocity Field of Vortex Ring -- 2.5 Stream Function and Structure of Stream Lines -- 2.6 Vorticity Distribution. Vortex Core. Circulation -- 2.7 Dynamic Characteristics of a Vortex Ring -- 2.8 Other Investigations of Vortex Ring Structure -- 2.9 Comments on Experimental Methods of Studying Velocity Flow Field -- 3 Structure and Parameters of a Family of Vortex Rings Formed on Outflow of a Submerged Jet -- 3.1 Experimental Procedure -- 3.2 Criteria Determining Vortex Ring Formation Process -- 3.3 Basic Properties of Vortex Rings -- 3.4 Vortex Ring Parameters as Functions of Jet Length -- 3.5 Dependence of Vortex Ring Parameters on the Jet Reynolds Number -- 3.6 Dependence of Vortex Ring Parameters on the Nozzle Angle of Taper -- 3.7 Comparison between Some Conclusions from Theoretical Models of Vortex Rings and Experiment -- 4 Vortex Ring Formation -- 4.1 Vortex Ring Generation by Impulsive Motion of a Circular Disc -- 4.2 Vortex Ring Formation on Outflow of a Submerged Jet -- 5 Motion of Turbulent Vortex Rings -- 5.1 Statement of the Problem -- 5.2 Laws of Motion of a Turbulent Vortex Ring -- 5.3 Structure of a Turbulent Vortex Ring -- 6 Practical Implementation of Vortex Rings: Extinction of Fires at Gushing Gas and Oil Wells -- 6.1 Origination and Characteristics of Powerful Gas and Oil Gushers -- 6.2 Combustion of Gas and Oil Gushers. Conditions of Stabilization and Flame-Out -- 6.3 Determination of Flow Rate of Burning Underexpanded Gas Gushers -- 6.4 Physical Grounds for Extinguishing of a Diffusion Plume by an Air Vortex Ring -- 6.5 Principles of Scale Modeling and Calculation of Amount of Fire Extinguishing Agents -- 6.6 Extinguishing of Real Well Fires by a Vortex Ring -- References -- Index
Summary This book presents a comprehensive coverage of the wide field of vortex rings. The book presents the results of systematic experimental investigations, theoretical foundation, as well as the practical applications of vortex rings, such as the extinction of fires at gushing gas and oil wells. All the basic properties of vortex rings as well as their hydrodynamic structures are presented. Special attention is paid to the formation and motion of turbulent vortex rings
Bibliography Includes bibliographical references and index
Notes Print version record
Subject Vortex-motion.
SCIENCE -- Waves & Wave Mechanics.
Ingénierie.
Vortex-motion
Form Electronic book
ISBN 9783642050169
3642050166