Nonlinear Optical Diagnostics Of Diesel Spray Final Report August 3 1987 July 31 1991

Download or read book Nonlinear Optical Diagnostics of Diesel Spray. Final Report, August 3, 1987--July 31, 1991 written by and published by . This book was released on 2005 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The mechanisms of fuel spray development within engines, particularly processes including atomization, vaporization, and mixing of the fuel and air, are critical in the design and optimization of diesel engines. During the four years of DOE support, significant progress has been made toward furthering the understanding of nonlinear optical effects in fuel sprays and single liquid droplets with radius (a) much larger than the laser wavelength ([lambda][sub input]), i.e., droplets with with large size parameters x = 2[pi]a/[lambda][sub input]. The authors have attempted to apply nonlinear optical spectroscopy to determine the chemical composition of the droplet, the droplet morphology (size, shape, and index of refraction), and the physical properties of the droplet (surface tension and bulk viscosity). This research can be divided into two parts: (1) understanding of nonlinear optical effects: and (2) application of nonlinear optical spectroscopy and imaging to fuel droplets and sprays.