Swirl Flows
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Swirl Flows
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Author : Ashwani K. Gupta
language : en
Publisher: Routledge
Release Date : 1984
Swirl Flows written by Ashwani K. Gupta and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with Science categories.
Swirling Flows And Flames
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Author : Toufik Boushaki
language : en
Publisher: BoD – Books on Demand
Release Date : 2019-06-26
Swirling Flows And Flames written by Toufik Boushaki and has been published by BoD – Books on Demand this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019-06-26 with Science categories.
Swirl flows are used in a wide range of industrial applications. In non-reacting cases, examples of applications include vortex amplifiers and reactors, heat exchangers, jet pumps, and cyclone separators. In reacting cases, swirlers are widely used in combustion systems, such as gas turbines, industrial furnaces, boilers, gasoline and diesel engines, and many other practical heating devices. Effects of using swirl on flow and combustion are significant and varied, and concern, for example, aerodynamics, mixing, flame stability, intensity of combustion, and pollutant emissions. The purpose of this book is to present recent research efforts to understand and characterize swirling flows of different types and in different applications. These include gaseous, liquid, and solid fuels in order to enhance combustion systems and their energy efficiency. Swirl flows are very complex and the studies proposed in this project are based on different means, including theoretical calculations, numerical modeling, and experimental measurements.
Swirl Flows
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Author : Anand Kumar Gupta
language : en
Publisher:
Release Date : 1984
Swirl Flows written by Anand Kumar Gupta and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1984 with categories.
Swirling Flows And Flames
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Author : Toufik Boushaki
language : en
Publisher:
Release Date : 2019
Swirling Flows And Flames written by Toufik Boushaki and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2019 with Physics categories.
Swirl flows are used in a wide range of industrial applications. In non-reacting cases, examples of applications include vortex amplifiers and reactors, heat exchangers, jet pumps, and cyclone separators. In reacting cases, swirlers are widely used in combustion systems, such as gas turbines, industrial furnaces, boilers, gasoline and diesel engines, and many other practical heating devices. Effects of using swirl on flow and combustion are significant and varied, and concern, for example, aerodynamics, mixing, flame stability, intensity of combustion, and pollutant emissions. The purpose of this book is to present recent research efforts to understand and characterize swirling flows of different types and in different applications. These include gaseous, liquid, and solid fuels in order to enhance combustion systems and their energy efficiency. Swirl flows are very complex and the studies proposed in this project are based on different means, including theoretical calculations, numerical modeling, and experimental measurements.
Investigation Of Swirl Flows Applied To The Oil And Gas Industry
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Author : Meher Surendra Ravuri Venkata Krish
language : en
Publisher:
Release Date : 2010
Investigation Of Swirl Flows Applied To The Oil And Gas Industry written by Meher Surendra Ravuri Venkata Krish and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010 with categories.
Understanding how swirl flows can be applied to processes in the oil and gas industry and how problems might hinder them, are the focus of this thesis. Three application areas were identified: wet gas metering, liquid loading in gas wells and erosion at pipe bends due to sand transport. For all three areas, Computational Fluid Dynamics (CFD) simulations were performed. Where available, experimental data were used to validate the CFD results. As a part of this project, a new test loop was conceived for the investigation of sand erosion in pipes. The results obtained from CFD simulations of two-phase (air-water) flow through a pipe with a swirl-inducing device show that generating swirl flow leads to separation of the phases and creates distinct flow patterns within the pipe. This effect can be used in each of the three application areas of interest. For the wet gas metering application, a chart was generated, which suggests the location of maximum liquid deposition downstream of the swirling device used in the ANUMET meter. This will allow taking pressure and phase fraction measurements (from which the liquid flow rate can be determined) where they are most representative of the flow pattern assumed for the ANUMET calculation algorithms. For the liquid loading application, which was taken as an upscaling of the dimensions investigated for the wet gas metering application, the main focus was on the liquid hold-up. This parameter is defined as the ratio of the flowing area occupied by liquid to the total area. Results obtained with CFD simulations showed that as the water rate increases, the liquid hold-up increases, implying a more effective liquid removal. Thus, it was concluded that the introduction of a swirler can help unload liquid from a gas well, although no investigation was carried out on the persistance of the swirl motion downstream of the device. For the third and final application, the erosion at pipe bends due to sand transport, the main focus was to check the erosion rate on the pipe wall with and without the introduction of a swirler. The erosion rate was predicted by CFD simulations. The flow that was investigated consisted of a liquid phase with solid particles suspended in it. The CFD results showed a significant reduction in erosion rate at the pipe walls when the swirler was introduced, which could translate into an extended working life for the pipe. An extensive literature review performed on this topic, complemented by the CFD simulations, showed the need for a dedicated multiphase test loop for the investigation of sand erosion in horizontal pipes and at bends. The design of a facility of this type is included in this thesis. The results obtained with this work are very encouraging and provide a broad perspective of applications of swirl flows and CFD for the oil and gas industry.
Swirling Flow Problems At Intakes
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Author : J. Knauss
language : en
Publisher: Routledge
Release Date : 2017-11-01
Swirling Flow Problems At Intakes written by J. Knauss and has been published by Routledge this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-11-01 with Technology & Engineering categories.
Fundamentals of vortex intake flow; Results theoretical & experimental work; Prediction of critical submergence; Modeling of vortices & swirling flows; Design; Intake structures; Pump sumps; Vortex-flow intakes. This volume forms an essential reference work for anyone involved in intakes, either as a practising design engineer or research worker. Water Power & Dam Constr., July 1988.The book is essential reading for postgraduate students & researchers alike and a very valuable aid to design engineers. Hydrol.Sc.Jrl., 33(3), 1988.
Turbulent Annular Swirl Flows
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Author : C. J. Scott
language : en
Publisher:
Release Date : 1973
Turbulent Annular Swirl Flows written by C. J. Scott and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1973 with categories.
The report presents a brief summary of the swirl research done at the University of Minnesota up to the present and retails the characteristics of a new apparatus under construction and evaluation since July, 1970. The purpose of this apparatus is to study turbulent transport properties in non-decaying, swirling, annular vortex flows. By generating fully-developed, axial and tangential velocity profiles, coupled with fully developed temperature profiles, using an adiabatic, rotating inner wall and a stationary constant-heat-flux, outer wall, experimental values of the eddy diffusivities for momentum and heat were obtained. These transport coefficients are found to be influenced differently by the swirl distribution. (Modified author abstract).
Internal Flow
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Author : E. M. Greitzer
language : en
Publisher: Cambridge University Press
Release Date : 2007-02-26
Internal Flow written by E. M. Greitzer and has been published by Cambridge University Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2007-02-26 with Technology & Engineering categories.
This book describes the analysis and behaviour of internal flows encountered in propulsion systems, fluid machinery (compressors, turbines and pumps) and ducts (diffusers, nozzles and combustion chambers). The focus is on phenomena that are important in setting the performance of a broad range of fluid devices. The authors show that even for complex processes one can learn a great deal about the behaviour of such devices from a clear understanding and rigorous use of basic principles. Throughout the book they illustrate theoretical principles by reference to technological applications. The strong emphasis on fundamentals, however, means that the ideas presented can be applied beyond internal flow to other types of fluid motion. The book equips students and practising engineers with a range of new analytical tools. These tools offer enhanced interpretation and application of both experimental measurements and the computational procedures that characterize modern fluids engineering.
Mathematical Theory Of Steady Compressible Swirl Flows With Closed Streamlines At High Reynolds Numbers
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Author : Karl G. Guderley
language : en
Publisher:
Release Date : 1967
Mathematical Theory Of Steady Compressible Swirl Flows With Closed Streamlines At High Reynolds Numbers written by Karl G. Guderley and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1967 with Inviscid flow categories.
The paper presents a theory of axi-symmetric steady compressible swirl flows in which the stream lines are closed, under the assumption that the Reynolds number is large. In principle the flow field is determined by the equations for an inviscid flow; but, if the stream lines are closed, additional conditions arise which are primarily determined by the dissipative terms. They arise by purely mathematical arguments as the solvability conditions for the approximation of the next order in a development with respect to the reciprocal of the Reynolds number. These conditions can be interpreted in physical terms. Various transformations are carried out, to prepare the equations for numerical work. The mathematical structure of the operators occurring in the solvability conditions and its relation to the parameters which are suggested by physical considerations is studied in detail. The solution for the potential vortex is compatible with this approach only if the viscosity coefficient is constant with the Prandtl number is 1/2. (Author).
An Experimental Study Of Confined Swirl Flows
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Author : Randall Gordon Finstad
language : en
Publisher:
Release Date : 1988
An Experimental Study Of Confined Swirl Flows written by Randall Gordon Finstad and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1988 with Combustion chambers categories.