Analytical Description of the Breakup of Liquid Jets in Air
| Author | : Institute for Computer Applications in Science and Engineering |
| Publisher | : |
| Total Pages | : 36 |
| Release | : 1993 |
| Genre | : |
| ISBN | : |
Analytical Description Of The Breakup Of Liquid Jets In Air
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Analytical Description of the Breakup of Liquid Jets in Air
| Author | : National Aeronautics and Space Administration (NASA) |
| Publisher | : Createspace Independent Publishing Platform |
| Total Pages | : 34 |
| Release | : 2018-06-30 |
| Genre | : |
| ISBN | : 9781722092191 |
A viscous or inviscid cylindrical jet with surface tension in a vacuum tends to pinch due to the mechanism of capillary instability. Similarity solutions are constructed which describe this phenomenon as a critical time is encountered, for two physically distinct cases: inviscid jets governed by the Euler equations and highly viscous jets governed by the Stokes equations. In both cases the only assumption imposed is that at the time of pinching the jet shape has a radial length scale which is smaller than the axial length scale. For the inviscid case, we show that our solution corresponds exactly to one member of the one-parameter family of solutions obtained from slender jet theories and the shape of the jet is locally concave at breakup. For highly viscous jets our theory predicts local shapes which are monotonic increasing or decreasing indicating the formation of a mother drop connected to the jet by a thin fluid tube. This qualitative behavior is in complete agreement with both direct numerical simulations and experimental observations. Papageorgiou, Demetrios T. Unspecified Center NAS1-19480; RTOP 505-90-52-01...
Breakup of Liquid Sheets and Jets
| Author | : S. P. Lin |
| Publisher | : Cambridge University Press |
| Total Pages | : 287 |
| Release | : 2003-08-21 |
| Genre | : Technology & Engineering |
| ISBN | : 1139439782 |
This book, first published in 2003, is an exposition of what we knew about the physics underlying the onset of instability in liquid sheets and jets. Wave motion and breakup phenomena subsequent to the onset of instability are carefully explained. Physical concepts are established through rigorous mathematics, accurate numerical analyses and comparison of theory with experiment. Exercises are provided for students, and these help familiarize the reader with the required mathematical tools. This book further provides a rational basis for designing equipment and processes involving the phenomena of sheet and jet breakup. Researchers interested in transition to turbulence, hydrodynamic stability or combustion will find this book a highly useful resource, whether their background lies in engineering, physics, chemistry, biology, medicine or applied mathematics.
Handbook of Atomization and Sprays
| Author | : Nasser Ashgriz |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 922 |
| Release | : 2011-02-18 |
| Genre | : Technology & Engineering |
| ISBN | : 1441972641 |
Atomization and sprays are used in a wide range of industries: mechanical, chemical, aerospace, and civil engineering; material science and metallurgy; food; pharmaceutical, forestry, environmental protection; medicine; agriculture; meteorology and others. Some specific applications are spray combustion in furnaces, gas turbines and rockets, spray drying and cooling, air conditioning, powdered metallurgy, spray painting and coating, inhalation therapy, and many others. The Handbook of Atomization and Sprays will bring together the fundamental and applied material from all fields into one comprehensive source. Subject areas included in the reference are droplets, theoretical models and numerical simulations, phase Doppler particle analysis, applications, devices and more.
Atomization and Sprays
| Author | : Arthur H. Lefebvre |
| Publisher | : CRC Press |
| Total Pages | : 284 |
| Release | : 2017-03-27 |
| Genre | : Technology & Engineering |
| ISBN | : 1498736262 |
The second edition of this long-time bestseller provides a framework for designing and understanding sprays for a wide array of engineering applications. The text contains correlations and design tools that can be easily understood and used in relating the design of atomizers to the resulting spray behavior. Written to be accessible to readers with a modest technical background, the emphasis is on application rather than in-depth theory. Numerous examples are provided to serve as starting points for using the information in the book. Overall, this is a thoroughly updated edition that still retains the practical focus and readability of the original work by Arthur Lefebvre.
Jet in Supersonic Crossflow
| Author | : Mingbo Sun |
| Publisher | : |
| Total Pages | : 284 |
| Release | : 2019 |
| Genre | : Aerodynamics, Supersonic |
| ISBN | : 9789811360268 |
Based on research into jets in supersonic crossflow carried out by the authors’ team over the past 15 years, this book summarizes and presents many cutting-edge findings and analyses on this subject. It tackles the complicated mixing process of gas jets and atomization process of liquid jets in supersonic crossflow, and studies their physical mechanisms. Advanced experimental and numerical techniques are applied to further readers’ understanding of atomization, mixing, and combustion of fuel jets in supersonic crossflow, which can promote superior fuel injection design in scramjet engines. The book offers a valuable reference guide for all researchers and engineers working on the design of scramjet engines, and will also benefit graduate students majoring in aeronautical and aerospace engineering.
Fluid Dynamics at Interfaces
| Author | : Wei Shyy |
| Publisher | : Cambridge University Press |
| Total Pages | : 482 |
| Release | : 1999-09-28 |
| Genre | : Science |
| ISBN | : 9780521642668 |
In this book experts discuss research and applications in interfacial fluid dynamics.
Scaling, Self-similarity, and Intermediate Asymptotics
| Author | : G. I. Barenblatt |
| Publisher | : Cambridge University Press |
| Total Pages | : 412 |
| Release | : 1996-12-12 |
| Genre | : Mathematics |
| ISBN | : 9780521435222 |
Scaling laws reveal the fundamental property of phenomena, namely self-similarity - repeating in time and/or space - which substantially simplifies the mathematical modelling of the phenomena themselves. This book begins from a non-traditional exposition of dimensional analysis, physical similarity theory, and general theory of scaling phenomena, using classical examples to demonstrate that the onset of scaling is not until the influence of initial and/or boundary conditions has disappeared but when the system is still far from equilibrium. Numerous examples from a diverse range of fields, including theoretical biology, fracture mechanics, atmospheric and oceanic phenomena, and flame propagation, are presented for which the ideas of scaling, intermediate asymptotics, self-similarity, and renormalisation were of decisive value in modelling.
