Download or read book Experimental Investigation of the Breakup of a Round Liquid Jet in a Shock induced Crossflow written by and published by . This book was released on 2015 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation of Jet Breakup at Low Weber Number written by Sucharitha Rajendran and published by . This book was released on 2012 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation on the disintegration of circular liquid jets, ejected into a stagnant ambient atmosphere at low Weber number, is presented in this thesis. The process of breakup of the liquid jet was captured using a real-time image processing high-speed digital camera system. In order to understand the influence of inertial, surface tension, and viscous forces on the process of breakup, a range of Weber numbers from 5 to 110 was experimentally tested. A syringe pump was used to provide a constant flow rate and produce a jet at a given Weber number. The effects of surface tension and viscosity were investigated by using two viscous liquids (ethylene glycol and propylene glycol) apart from water. Nozzle diameters from 0.279 mm to 1.753 mm were used to study its influence on the liquid jet breakup. Results show that the jet breakup patterns for water at lower Weber numbers follow a different behavior than that for higher Weber numbers. In the former case, the breakup length depends not only on Weber number, but also quite significantly, on nozzle exit diameter. Moreover the functional dependence of jet breakup length in this range (We
Download or read book Primary Breakup of a Liquid Jet in a Transverse Shock induced Flow written by A. Ateshkadi and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breakup of a Liquid Jet in a Transverse Flow of Gas written by Bruce J. Clark and published by . This book was released on 1964 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Jet in Supersonic Crossflow written by Mingbo Sun and published by Springer. This book was released on 2019-02-18 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Liquid Breakup in Dense Sprays written by and published by . This book was released on 2006 with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt: Experiments were conducted on deformation and breakup properties of turbulent round liquid jets in uniform gaseous crossflows. Pulsed shadowgraph and holograph observations were obtained for turbulent round liquid jets injected normal to air crossflow in a shock tube. The onset of turbulent primary breakup approached the jet exit, approximating breakup conditions at large Weber numbers. Ligament diameters increased with increasing distance from the jet exit, becoming comparable to the radial integral scale of the liquid turbulence near the end of the liquid column. The correlation between drop Sauter mean diameters and streamwise distance along the liquid jet was not affected by the crossflow, suggesting that turbulent primary breakup dominated aerodynamic effects near the liquid surface. Drop velocities after turbulent primary breakup in croseflow were independent of drop size, with streanwise drop velocities comparable to mean streanwise liquid velocities and cross stream drop velocities somewhat larger than the characteristic velocity of the liquid jet in the cross stream direction. Breakup of the liquid column as a whole approximated the total times of breakup of drops subjected to shock wave disturbances in the shear breakup regime. The mean drop mass flux over the downstream projected area of the liquid column due to turbulent primary breakup at the liquid surface could be correlated by a surface efficiency factor that was small at the onset of breakup but increased to a value near unity as the end of the liquid column was approached.
Download or read book Breakup of Turbulent Round Liquid Jets in Uniform Gaseous Crossflow written by Ramprakash Sankarakrishnan and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Theoretical and Experimental Investigation of Shock type Velocity Instability of a Liquid Jet written by Brian B. Dunne and published by . This book was released on 1955 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breakup Characteristics of a Liquid Jet in Subsonic Crossflow written by Yogish Gopala and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis describes an experimental investigation of the breakup processes involved in the formation of a spray created by a liquid jet injected into a gaseous crossflow. This work is motivated by the utilization of this method to inject fuel in combustors and afterburners of airplane engines. This study aims to develop better understanding of the spray breakup processes and provide better experimental inputs to improve the fidelity of numerical models. This work adresses two key research areas: determining the time required for a liquid column to break up in the crossflow (i.e., primary breakup time) and the effect of injector geometry on spray properties. A new diagnostic technique, the liquid jet light guiding technique that utilizes ability of the liquid jet to act as a waveguide for laser light was developed to determine the location where the liquid column breaks up, in order to obtain the primary breakup time. This study found that the liquid jet Reynolds number was an important factor that governed the primary breakup time and improved the existing correlation. Optical diagnostic techniques such as Phase Doppler Particle Analyzer, Liquid Jet Light Guiding Technique, Particle Image Velocimetry and Imaging techniques were employed to measure the spray properties that include spray penetration, droplet sizes and velocities, velocity field on the surface of the liquid jet and the location of the primary breakup time. These properties were measured for two injectors: one with a sharp transition and the other with a smooth transition. It was found that the spray created by the injector with a sharp transition forms large irregular structures while one with smooth transition produces a smooth liquid jet. The spray transition creates a spray that penetrates deeper into the crossflow, breakup up earlier and produces larger droplets. Additionally, this study reports the phenomenon of the liquid jet splitting into two or more jets in sprays created by the injector with a smooth transition.
Download or read book Jet in Supersonic Crossflow written by Mingbo Sun and published by . This book was released on 2019 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Download or read book Break Up of a Round Liquid Jet in a Low Weber Number Cross Flow written by Ozgur Ali Pulat and published by . This book was released on 2007 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 974 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1987 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Experimental Investigation of the Breakup of Water Drops Falling Into a Horizontal Air Jet written by A. H. von Flotow and published by . This book was released on 1977 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Breakup of Various Liquid Jets by Shock Waves and Applications to Resonant Combustion written by Gerald Morrell and published by . This book was released on 1964 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Rate of Liquid Jet Breakup by a Transverse Shock Wave written by Gerald Morrell and published by . This book was released on 1963 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AIAA Journal written by American Institute of Aeronautics and Astronautics and published by . This book was released on 2004 with total page 954 pages. Available in PDF, EPUB and Kindle. Book excerpt:
