... chemical kinetics fuel combustion modeling jet engines ignition flame speed species profiles To reach the emissions reduction targets as defined in the Paris Agreement, different challenges need to be tackled in many sectors. In this regard, the aviation sector is challenged by the increasing...

... from the basic engine operability and emissions studies of the alternative fuel blends. 23 06 2011 30 06 2011 06 03 2012 06 03 2012 air pollution control biofuel combustion environmental testing jet engines pyrolysis The Department of Defense (DOD) established...

... of a High Fidelity Aero-Thermodynamic Turbofan Engine Simulation,” ASME Turbo Expo, Jun. 6-10, Vancouver, Canada, Paper No. GT2011-46661). 22 06 2011 05 08 2011 06 03 2012 06 03 2012 aerodynamics flow simulation gas turbines jet engines reduced order systems thermodynamics...

...E. Naderi; N. Meskin; K. Khorasani In this paper, a nonlinear fault detection and isolation (FDI) scheme that is based on the concept of multiple model approach is proposed for jet engines. A modular and a hierarchical architecture is proposed which enables the detection and isolation of both...

...Klaus Brun; Marybeth Nored; Rainer Kurz Significant interest exists in the military and commercial aerospace industry to better predict and improve the durability of gas turbine jet engines that are operating in hostile desert environments, specifically, jet engines that see significant inlet sand...

... , “ Soft-Body Impact on Jet Engine Components Made-Up of Composites ,” International SAMPE Technical Conference , Cincinnati, OH . SAMPE, Covina, CA. 19 Kermanidis , T. , Labeas , G. , Sunaric , M. , Johnson , A. F. , and Holzapfel , M. , 2006 , “ Bird Strike Simulation...

...S. Borguet; O. Léonard Least-squares-based methods are very popular in the jet engine community for health monitoring purpose. Their isolation capability can be improved by using a prior knowledge on the health parameters that better matches the expected pattern of the solution i.e., a sparse one...

... the nonlinear control issues based on this model. Control validations are provided in Sec. 5 . Finally the paper is summarized in Sec. 6 . 01 07 2010 30 01 2011 17 05 2011 17 05 2011 aerospace engines aircraft control closed loop systems feedback jet engines...

... 2010 03 05 2011 03 05 2011 aeroacoustics flow simulation gas turbines jet engines jets noise abatement nozzles supersonic flow velocimeters There is a growing need to significantly reduce the noise generated by high-performance, supersonic military aircraft. The noise...

... 07 2010 07 04 2011 07 04 2011 combustion cooling gas turbines jet engines Mach number pressure measurement pressure sensors probes time series Accurate hot gas path measurements (including combustion diagnostics) are recognized as a major need for the assessment...

... continuously over the last years. A consequence of these increasing operating conditions are increased bearing temperatures. A state of the art jet engine high speed ball bearing has been modified with an oil channel in the outer diameter of the bearing. This oil channel provides direct cooling of the outer...

... between the low and high compressors in a typical jet engine and an airfoil simulating the engine strut connecting the inner and outer surfaces. Test results showed ice formed on the airfoil and other surfaces in the test section at air temperatures warmer than freezing. However, when both the air...

... to 5.44% for the maneuvers analyzed. 12 04 2010 19 04 2010 12 11 2010 12 11 2010 aerospace propulsion aircraft testing boundary layers computational fluid dynamics cooling distortion jet engines mass transfer military aircraft nozzles supersonic flow thermal energy...

... turbine in an intercooled core with lean-burn combustion technology. 07 04 2010 11 04 2010 14 09 2010 14 09 2010 aerodynamics combustion design engineering energy consumption heat transfer jet engines risk management Public awareness and political concern over...

... the engine model parameters is independently verified by successful estimation of parameters by nonlinear least-squares estimation. 22 12 2009 26 03 2010 24 08 2010 24 08 2010 fault diagnosis jet engines least squares approximations parameter estimation wavelet transforms...

... on the intercooler external side, and thus, to guarantee that enough air passes through the internal bypass channel. Cross sectional drawings of optimal engines 22 06 2009 04 11 2009 10 08 2010 10 08 2010 compressors design engineering heat transfer jet engines...

... 18 08 2009 07 06 2010 07 06 2010 ceramics gas turbines heat exchangers jet engines power generation reliability silicon compounds Miniature gas turbines producing less than 10 kW of power are of interest for various military and civilian applications, including...

... of fracture are illustrated for a representative gas turbine engine disk geometry. 14 05 2009 05 06 2009 26 05 2010 26 05 2010 fatigue cracks gas turbines jet engines nucleation Federal Aviation Administration , 2001 , “ Advisory Circular—Damage Tolerance for High...

... 03 2010 aircraft gas turbines jet engines Monte Carlo methods thermodynamics environment economics innovative turbofans multidisciplinary design optimization Aviation forms a vital part of the transportation system required for today’s globalized economy. Furthermore...

... ,” Combust. Flame 0010-2180 , 99 ( 2 ), pp. 192 – 200 . 10.1016/0010-2180(94)90122-8 08 04 2009 24 07 2009 27 01 2010 27 01 2010 combustion ignition jet engines ignition delay combustion characteristics gaseous fuel jets hydrogen natural gas methane...