Download or read book Combustion Efficiency in a Dual inlet Side dump Ramjet Combustor written by Martin W. Deppe and published by . This book was released on 1994 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dual, axially-in-line, side-dump, liquid-fueled ramjet combustor was designed and tested with varying fuel-air ratios, atomizer types, and air distributions between the two inlets. Particle size distributions produced by the atomizers were measured at the inlet duct plane. When operated in a contra- flow direction, all of the atomizers produced excellent atomization with a Sauter mean diameter less than 14 microns. The dual, in-line inlets provided improved flammability limits and combustion efficiencies at lean fuel-air ratios when compared to single side-dump performance. Direct injection of approximately 20% of the fuel flow into the dome region was found to provide improved lean flammability limits for the single side-dump, but was not required with the dual inlets. The fuel distribution in the inlet duct required for good flammability limits and combustion efficiency was opposite to that required to prevent pressure oscillations, indicating that a dump plane aero-grid will often be necessary. A dump angle of 45 deg resulted in lower than desired combustion efficiencies, apparently due to poor mixing with the air from the aft inlet.
Download or read book Combustion Efficiency in a Dual inlet Side dump Ramjet Combustor written by Martin W. Deppe and published by . This book was released on 1994 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt: A dual, axially-in-line, side-dump, liquid-fueled ramjet combustor was designed and tested with varying fuel-air ratios, atomizer types, and air distributions between the two inlets. Particle size distributions produced by the atomizers were measured at the inlet duct plane. When operated in a contra- flow direction, all of the atomizers produced excellent atomization with a Sauter mean diameter less than 14 microns. The dual, in-line inlets provided improved flammability limits and combustion efficiencies at lean fuel-air ratios when compared to single side-dump performance. Direct injection of approximately 20% of the fuel flow into the dome region was found to provide improved lean flammability limits for the single side-dump, but was not required with the dual inlets. The fuel distribution in the inlet duct required for good flammability limits and combustion efficiency was opposite to that required to prevent pressure oscillations, indicating that a dump plane aero-grid will often be necessary. A dump angle of 45 deg resulted in lower than desired combustion efficiencies, apparently due to poor mixing with the air from the aft inlet.
Download or read book Flow Visualization and Experimental Optimization of Three Inlet side dump Liquid fuel Ramjet Combustors written by Ronald Frank Salyer and published by . This book was released on 1993 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three distinct inlet-side-dump ramjet-combustor geometric configurations were investigated. Non-intrusive watertunnel flow-visualization techniques were utilized to qualitatively determine optimum flame-stabilization dome lengths and fuel-injection locations. The results were in good agreement with the results from previous studies. The optimum dome lengths which provided good fuel distribution and steady mixing all had lengths between 0.31 D and 1.4 D. Fuel injection in a narrow region on the upstream side of the inlet cross section was the only location capable of distributing fuel into the flame- holding region. Multiple injection locations in the inlet were required to distribute fuel uniformly into the main combustion region. The dual, axially-in- line side-dump configuration demonstrated the best potential for increasing performance across a wide range of operating conditions due to the ancillary combustion region between the inlets and the ability to control the size and strength of the region by varying air mass flow through the two inlet dumps.
Download or read book Flow Visualization and Experimental Optimization of Three Inlet side dump Liquid fuel Ramjet Combustors written by Ronald Frank Salyer and published by . This book was released on 1993 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Three distinct inlet-side-dump ramjet-combustor geometric configurations were investigated. Non-intrusive watertunnel flow-visualization techniques were utilized to qualitatively determine optimum flame-stabilization dome lengths and fuel-injection locations. The results were in good agreement with the results from previous studies. The optimum dome lengths which provided good fuel distribution and steady mixing all had lengths between 0.31 D and 1.4 D. Fuel injection in a narrow region on the upstream side of the inlet cross section was the only location capable of distributing fuel into the flame- holding region. Multiple injection locations in the inlet were required to distribute fuel uniformly into the main combustion region. The dual, axially-in- line side-dump configuration demonstrated the best potential for increasing performance across a wide range of operating conditions due to the ancillary combustion region between the inlets and the ability to control the size and strength of the region by varying air mass flow through the two inlet dumps.
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 440 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Turbulent Combustion Modelling in a Side Dump Ramjet Combustor written by X. Montazel and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 1994 with total page 562 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Technologies in Flow Dynamics and Combustion in Propulsion and Power written by Lei Luo and published by Frontiers Media SA. This book was released on 2022-08-05 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Announcements Index written by and published by . This book was released on 1994 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Masters Theses in the Pure and Applied Sciences written by Wade H. Shafer and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 427 pages. Available in PDF, EPUB and Kindle. Book excerpt: Masters Theses in the Pure and Applied Sciences was first conceived, published, and disseminated by the Center for Information and Numerical Data Analysis and Synthesis (CINDAS)* at Purdue University in 1957, starting its coverage of theses with the academic year 1955. Beginning with Volume 13, the printing and dis semination phases of the activity were transferred to University Microfilms/Xerox of Ann Arbor, Michigan, with the thought that such an arrangement would be more beneficial to the academic and general scientific and technical community. After five years of this joint undertaking we had concluded that it was in the interest of all concerned if the printing and distribution of the volumes were handled by an international publishing house to assure improved service and broader dissemination. Hence, starting with Volume 18, Masters Theses in the Pure and Applied Sciences has been disseminated on a worldwide basis by Plenum Publishing Corporation of New York, and in the same year the coverage was broadened to include Canadian universities. All back issues can also be ordered from Plenum. We have reported in Volume 39 (thesis year 1994) a total of 13,953 thesis titles from 21 Canadian and 159 United States universities. We are sure that this broader base for these titles reported will greatly enhance the value of this impor tant annual reference work. While Volume 39 reports theses submitted in 1994, on occasion, certain uni versities do report theses submitted in previous years but not reported at the time.
Download or read book Effects of Fuel injection Parameters in a Side dump Ramjet Combustor written by Tsung-Leo Jiang and published by . This book was released on 1998 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Commemoration Volume 1970 1991 written by International Society for Air Breathing Engines and published by . This book was released on 1991 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book AIAA ASME SAE ASEE 24th Joint Propulsion Conference written by and published by . This book was released on 1988 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Government Reports Annual Index written by and published by . This book was released on 1994 with total page 1374 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Flow Induced Tones in a Side Dump Ramjet Combustor written by Gregory C. Hildebrand and published by . This book was released on 1988 with total page 128 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Mixing and Combustion Studies of Four inlet Side Dump Combustors written by Christopher M. Brophy and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering A Cumulative Index to a Continuing Bibliography supplement 325 written by and published by . This book was released on 1995 with total page 470 pages. Available in PDF, EPUB and Kindle. Book excerpt:
