Download or read book Diesel Spray Structure Investigation by Laser Diffraction and Sheet Illumination written by Ömer L. Gülder and published by . This book was released on 1992 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mixture Formation in Internal Combustion Engines written by Carsten Baumgarten and published by Springer Science & Business Media. This book was released on 2006-09-28 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt: A systematic control of mixture formation with modern high-pressure injection systems enables us to achieve considerable improvements of the combustion pr- ess in terms of reduced fuel consumption and engine-out raw emissions. However, because of the growing number of free parameters due to more flexible injection systems, variable valve trains, the application of different combustion concepts within different regions of the engine map, etc., the prediction of spray and m- ture formation becomes increasingly complex. For this reason, the optimization of the in-cylinder processes using 3D computational fluid dynamics (CFD) becomes increasingly important. In these CFD codes, the detailed modeling of spray and mixture formation is a prerequisite for the correct calculation of the subsequent processes like ignition, combustion and formation of emissions. Although such simulation tools can be viewed as standard tools today, the predictive quality of the sub-models is c- stantly enhanced by a more accurate and detailed modeling of the relevant pr- esses, and by the inclusion of new important mechanisms and effects that come along with the development of new injection systems and have not been cons- ered so far. In this book the most widely used mathematical models for the simulation of spray and mixture formation in 3D CFD calculations are described and discussed. In order to give the reader an introduction into the complex processes, the book starts with a description of the fundamental mechanisms and categories of fuel - jection, spray break-up, and mixture formation in internal combustion engines.

Download or read book Experimental Study of Diesel Spray Characteristics and Atomization written by Chan-Teng Chang and published by . This book was released on 1997 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Recent Advances In Spray Combustion written by Kenneth K. Kuo and published by AIAA. This book was released on 1996 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fuel Injection written by Daniela Siano and published by BoD – Books on Demand. This book was released on 2010-08-17 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fuel Injection is a key process characterizing the combustion development within Internal Combustion Engines (ICEs) and in many other industrial applications. State of the art in the research and development of modern fuel injection systems are presented in this book. It consists of 12 chapters focused on both numerical and experimental techniques, allowing its proper design and optimization.

Download or read book ICLASS 97 written by ILASS. and published by . This book was released on 1997 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Optimization of Direct contact spray coolers written by Mohamed S. El-Morsi and published by . This book was released on 2003 with total page 312 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Diesel Sprays Using Diffraction Based Droplet Sizing written by M. A. Coil and published by . This book was released on 1995 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt: The study of combustion in direct injection Diesel engines demands detailed understanding of the behavior of the injection. Understanding the injection involves characterizing the distribution of fuel particle sizes throughout the spray. This work studied the size distributions of sprays from commercial Diesel injectors under a series of conditions. A diffraction-based diagnostic obtained maps of local fuel droplet size information over the full spray field. Most quantitative techniques currently used in spray research provide quantitative time-ranging data at a single point in the spray field. Spatially resolved information proves more useful in studying transient sprays. The spatially resolved maps of particle size obtained in this experiment showed the reliability of the diagnostic, exhibited the transience of the fine structure of these sprays, and demonstrated the evolution of the sprays with time.

Download or read book Technical Literature Abstracts written by Society of Automotive Engineers and published by . This book was released on 1998 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Insights Into Droplet Behavior Within High Pressure Diesel Sprays written by Calvin C. Hung and published by . This book was released on 1998 with total page 540 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Experimental Investigation of a Fan Spray Using Laser Diffraction and Phase Doppler Instruments written by M. Dannehl and published by . This book was released on 1990 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the experimental work reported here, laser Doppler anemometry was used for "point" measurements of bivariate distributions of velocity and drop size (LDVS), and diffraction sizemetry (DSM) was used for line-of-sight measurements of drop size in sprays of water. Laser light sheet photographs were used to determine the spray geometry. The measurement positions were chosen so that the mean axes of the horizontal spray planes containing the LDVS measurement points coincided with the axis of the DSM laser beam. In this case, experimental results of DSM and LDVS are comparable, if one takes into account the laws of the conversion of drop flux (LDVS results) into a drop concentration (DSM results). Mean diameters as well as cumulative distributions obtained by LDVS at different measurement locations are compared with corresponding DSM results. Advantages and disadvantages of both methods with respect to spray analysis are discussed.

Download or read book Annual Index abstracts of SAE Technical Papers written by and published by . This book was released on 1992 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book International Journal of Fluid Mechanics Research written by and published by . This book was released on 1999 with total page 468 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of Diesel Spray Structure and Spray wall Interactions in a Constant Volume Pressure Vessel written by James A. Schwalb and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advanced Research in Diesel Fuel Sprays Using X rays From The Advanced Photon Source written by C. Powell and published by . This book was released on 2003 with total page 2 pages. Available in PDF, EPUB and Kindle. Book excerpt: The fuel distribution and degree of atomization in the combustion chamber is a primary factor in the formation of emissions in diesel engines. A number of diagnostics to study sprays have been developed over the last twenty years; these are primarily based on visible light measurement techniques. However, visible light scatters strongly from fuel droplets surrounding the spray, which prevents penetration of the light. This has made quantitative measurements of the spray core very difficult, particularly in the relatively dense near- nozzle region [1-3]. For this reason we developed the x-ray technique to study the properties of fuel sprays in a quantitative way [4]. The x-ray technique is not limited by scattering, which allows it to be used to make quantitative measurements of the fuel distribution. These measurements are particularly effective in the region near the nozzle where other techniques fail. This technique has led to a number of new insights into the structure of fuel sprays, including the discovery and quantitative measurement of shock waves generated under some conditions by high-pressure diesel sprays [5]. We also performed the first-ever quantitative measurements of the time-resolved mass distribution in the near-nozzle region, which demonstrated that the spray is atomized only a few nozzle diameters from the orifice [6]. Our recent work has focused on efforts to make measurements under pressurized ambient conditions. We have recently completed a series of measurements at pressures up to 5 bar and are looking at the effect of ambient pressure on the structure of the spray. The enclosed figure shows the mass distributions measured for 1,2, and 5 bar ambient pressures. As expected, the penetration decreases as the pressure increases. This leads to changes in the measured mass distribution, including an increase in the density at the leading edge of the spray. We have also observed a narrowing in the cone angle of the spray core as the pressure increases. This is counter to visible light spray measurements, and current work is underway in an effort to understand this effect.

Download or read book Visualization of Diesel Spray by Laser Sheet Method written by Tetuya Kusakabe and published by . This book was released on 1994 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Study of Diesel Spray Structure and Penetration in a High Pressure and Temperature Quiescent Gas written by S. Y. Tham and published by . This book was released on 1986 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: