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Combustor Lbo Design Model Evaluation
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Book Synopsis Combustor LBO design model evaluation, (Final rept. 11 Sep 87-31 May 94), Pratt and Whitney, West Palm Beach, FL. Government Engines and Space Propulsion by : G. Sturgess
Download or read book Combustor LBO design model evaluation, (Final rept. 11 Sep 87-31 May 94), Pratt and Whitney, West Palm Beach, FL. Government Engines and Space Propulsion written by G. Sturgess and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combustor LBO Design Model Evaluation by : G. Sturgess
Download or read book Combustor LBO Design Model Evaluation written by G. Sturgess and published by . This book was released on 1995 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-term goals of the Air Force are to develop high-performance gas turbine combustors, and the design systems that can produce them. One aspect of an advanced combustor design system is the ability to calculate flame stability under fuel-lean conditions. Towards satisfying this latter desire the program had three principal objectives: (1) design, conduct and analyze experiments that establish a fundamental understanding of lean blowout, (2) provide a data base for evaluating and refining computer models of gas turbine combustion, and, (3) devise a calculation procedure for lean blowout. Two laboratory and one rig-standard combustors were successfully designed, fabricated and operated. A novel procedure using excess nitrogen as a diluent for simulating sub-atmospheric pressures was calibrated and verified. The sequence of events leading to lean blowout was identified, and observed to be common in all the combustors. Advanced diagnostic techniques were applied to enhance understanding of blowout. Some advanced mathematical modeling was shown to be inadequate for calculating blowout. A hybrid calculation procedure was devised that successfully modeled the influences on blowout of many important operating conditions and design variables. In this manner the program objectives were met.
Book Synopsis Combustor LBO Design Model Evaluation by : G. Sturgess
Download or read book Combustor LBO Design Model Evaluation written by G. Sturgess and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Long-term goals of the Air Force are to develop high-performance gas turbine combustors, and the design systems that can produce them. One aspect of an advanced combustor design system is the ability to calculate flame stability under fuel-lean conditions. Towards satisfying this latter desire the program had three principal objectives: (1) design, conduct and analyze experiments that establish a fundamental understanding of lean blowout, (2) provide a data base for evaluating and refining computer models of gas turbine combustion, and, (3) devise a calculation procedure for lean blowout. Two laboratory and one rig-standard combustors were successfully designed, fabricated and operated. A novel procedure using excess nitrogen as a diluent for simulating sub-atmospheric pressures was calibrated and verified. The sequence of events leading to lean blowout was identified, and observed to be common in all the combustors. Advanced diagnostic techniques were applied to enhance understanding of blowout. Some advanced mathematical modeling was shown to be inadequate for calculating blowout. A hybrid calculation procedure was devised that successfully modeled the influences on blowout of many important operating conditions and design variables. In this manner the program objectives were met.
Book Synopsis Combustor design model evaluation (Final rept. 1 Oct. 87-31 Jan. 96), Allison Engine Co., Indian apolis, IN. by : M. S. Anand
Download or read book Combustor design model evaluation (Final rept. 1 Oct. 87-31 Jan. 96), Allison Engine Co., Indian apolis, IN. written by M. S. Anand and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Combustor Design Model Evaluation by : M. S. Anand
Download or read book Combustor Design Model Evaluation written by M. S. Anand and published by . This book was released on 1996 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the program was to evaluate, develop and validate more accurate computer-based analytical models for combustor flows to be used in combustor design. The joint velocity-scalar probability density function (pdf) method, which overcomes several key deficiencies of conventional turbulent combustion models and offers greater accuracy for combustor design calculations, is the focus of the program. Significant progress has been made under this program towards the development of the pdf method as a combustor design tool. Several new models and algorithms used in the pdf method have been developed. The method and the models have been validated in detail for a variety of flows, including swirling, recirculating and reacting flows, involving the essential features of gas turbine combustor flows. The validation was performed using available benchmark quality data, as well as data from specifically designed experiments which were performed at Wright Laboratory. A baseline pdf based combustor design system has been developed.
Book Synopsis Combustor Design Model Evaluation by : M. S. Anand
Download or read book Combustor Design Model Evaluation written by M. S. Anand and published by . This book was released on 1996 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of the program was to evaluate, develop and validate more accurate computer-based analytical models for combustor flows to be used in combustor design. The joint velocity-scalar probability density function (pdf) method, which overcomes several key deficiencies of conventional turbulent combustion models and offers greater accuracy for combustor design calculations, is the focus of the program. Significant progress has been made under this program towards the development of the pdf method as a combustor design tool. Several new models and algorithms used in the pdf method have been developed. The method and the models have been validated in detail for a variety of flows, including swirling, recirculating and reacting flows, involving the essential features of gas turbine combustor flows. The validation was performed using available benchmark quality data, as well as data from specifically designed experiments which were performed at Wright Laboratory. A baseline pdf based combustor design system has been developed.
Book Synopsis Design and Development of a Research Combustor for Lean Blowout Studies by : G. J. Sturgess
Download or read book Design and Development of a Research Combustor for Lean Blowout Studies written by G. J. Sturgess and published by . This book was released on 1990 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: In a modern aircraft gas turbine combustor, the phenomenon of lean blow-out (LBO) is of major concern. To understand the physical processes involved in LBO, a research combustor was designed and developed specifically to reproduce recirculation patterns and LBO processes that occur in a real gas turbine combustor. A total of eight leading design criteria were established for the research combustor. This paper discusses the combustor design constraints, aero-thermochemical design, choice of combustor configurations, combustor sizing, mechanical design, combustor light-off, and combustor acoustic considerations that went into the final design and fabrication. Tests on this combustor reveal a complex sequence of events such as flame lift-off, intermittency, and onset of axial flame instability leading to lean blowout. The combustor operates satisfactorily and is yielding benchmark quality data for validating and refining computer models for predicting LBO in real engine combustors.
Download or read book AIAA 90-1835 - AIAA 90-1881 written by and published by . This book was released on 1990 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 34th Aerospace Sciences Meeting & Exhibit by :
Download or read book 34th Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 1996 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 35th Aerospace Sciences Meeting & Exhibit by :
Download or read book 35th Aerospace Sciences Meeting & Exhibit written by and published by . This book was released on 1997 with total page 428 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit by :
Download or read book 32nd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit written by and published by . This book was released on 1996 with total page 614 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Paper written by and published by . This book was released on 1997 with total page 714 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Government Reports Announcements & Index by :
Download or read book Government Reports Announcements & Index written by and published by . This book was released on 1996 with total page 708 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ASME Technical Papers written by and published by . This book was released on 2001 with total page 472 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 20th AIAA Advanced Measurement and Ground Testing Technology Conference by :
Download or read book 20th AIAA Advanced Measurement and Ground Testing Technology Conference written by and published by . This book was released on 1998 with total page 594 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference by :
Download or read book 30th AIAA/ASME/SAE/ASEE Joint Propulsion Conference written by and published by . This book was released on 1994 with total page 730 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Design of Modern Turbine Combustors by : A. M. Mellor
Download or read book Design of Modern Turbine Combustors written by A. M. Mellor and published by . This book was released on 1990 with total page 578 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lower pollutant emissions and broader multifuel flexibility are driving forces for advancing aircraft, vehicular, and industrial engine performance and versatility. Both are inherently connected with the design of the fuel injector and combustor system. The traditional concerns, improving durability and fuel economy over the life of the engine, remain additional requirements.**This volume offers a comprehensive treatment of modern practice aimed both at those in the field and newcomers interested in research and development for gas turbine combustors. Detailed description and assessment of a range of combustor design models and methods**Specification and evolution of fuels and fuel injectors**System models for fuel effects on engines and airframes**Evaluation of laser-based measurement techniques for combustor flow field studies
