... to be an influential flow parameter for heat transfer in rotating cavities with radial flow-through. Therefore, this paper focuses on deducing the core rotation ratio and the estimation of its local distribution using telemetric pressure measurements. The local core rotation ratio depends on the radial pressure...

... with turbine flowmeter and pressure measuring instruments was utilized to investigate the leakage flow of the staggered labyrinth seal at eight pressure ratios and five rotational speeds. The repeatability of the experimental data was demonstrated by three times measurements at different pressure ratios...

... 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...

... conditions. To the best knowledge of the authors, this is the first publication, which presents comprehensive experimental unsteady pressure measurements during forced response, for high-speed radial compressors. The experimental data were obtained for both resonance and off-resonance conditions...

... are presented for a single orifice located in an isothermal duct at ambient test conditions. Attached to the duct are two loudspeakers that provide pressure fluctuations incident onto the orifice. Unsteady pressure measurements enable the acoustic power absorbed by the orifice to be determined...

... to the design and development of gas turbine engines. As far back as 1971, Fischer ( 1 ) identified six major areas in engine development where unsteady pressure measurement plays a crucial role. Even today, the objectives could be as varied as studying engine noise ( 2 ), detecting and controlling thermo...

... of this design is to gain the capability of performing measurements at the temperature conditions typically found at high pressure turbine exit (1100–1400 K) and in the long term at combustor exit (2000 K or higher). 10 04 2008 10 04 2008 29 12 2008 pressure measurement pressure sensors...

..., and sensor mounting direction is discussed. The program of work reported in this paper focuses on experimental issues associated with rotating pressure measurement. The combined effect of centrifugal load and pressure on integrally temperature compensated silicon pressure sensors is presented. Experimental...

.... Amann , C. , 1985 , “ Cylinder-Pressure Measurement and Its Use in Engine Research ,” SAE Paper No. 852067. Powell , B. K. , Lawson , G. P. , and Hogh , G. , 1987 , “ Advanced Real Time Powertrain System Analysis ,” ASME Paper No. 87-ICE-46. Hata , Y. , Ikeura , K...

... designs were used, which enabled testing of two-, four-, and six-bladed see-through labyrinth seals with different geometries using the same sets of seal blades. Leakage and cavity pressure measurements were made on each of 23 seal configurations with a in. ( 101.6 mm ) diameter journal. Tests were...

.../S0022112071002088 , 49 , pp. 319 – 326 . 12 06 2006 28 06 2006 porous materials foams convection hydrodynamics pressure measurement temperature measurement Cast or foamed materials, such as porous carbon foam, typically have an open, interconnected void structure that enables...

.... 14 01 2005 26 09 2005 combustion diesel engines engine cylinders thermodynamics piezoelectric transducers pressure measurement capacitive sensors crankcases Selection of the proper ignition criterion is of crucial importance for a credible analysis of in-cylinder pressure...

...-average pressure (this should be the same as the time-average pressure measured by the Validyne transducers), a revolution-periodic pressure, and a revolution-aperiodic pressure. The revolution-periodic pressure is then decomposed into blade-periodic and blade-aperiodic components. The blade-periodic...

... compounds porous materials composite materials air pollution control pressure measurement Reduction of pollutant emissions is one of the most important goals of combustion research today. Many new technologies aimed at reducing nitric oxides NO x , carbon monoxide (CO...

...C. Cao; J. W. Chew; P. R. Millington; S. I. Hogg A combined computational fluid dynamics (CFD) and experimental study of interaction of main gas path and rim sealing flow is reported. The experiments were conducted on a two stage axial turbine and included pressure measurements for the cavity...

... rotors seals (stoppers) pressure measurement flow measurement gas turbines conservation laws aerodynamics compressible flow force flow instability Turbines can be broadly classified into shrouded and unshrouded turbines. Shrouded turbines have seals at rotor tips and/or stator hubs...

... measured in field engines to predict engine-out emissions. Because of the potential cost and reliability improvements, research in this area has increased significantly during the last decade, 2 3 4 . combustion chemical analysis chemical variables measurement pressure measurement air...

.... Benvenuti. 03 June 2002 01 Dec 2001 01 Mar 2002 18 11 2003 internal combustion engines aircraft testing aerospace engines combustion fuel pressure sensors pressure measurement chemiluminescence flames nozzles In the ACIACOC project, European manufacturers...

... temperature measurement pressure measurement Data analysis seeks to determine the health of an engine and, when a performance deficiency is found, to identify the cause(s) for that deficiency. Overall performance measures such as specific fuel consumption and exhaust gas temperature (EGT) are used...

... internal combustion engines ignition combustion pressure measurement pressure transducers The autoignition of the end-gas mixture during knocking operation causes a local pressure increase in the combustion chamber, leading to the creation of traveling pressure waves. As the waves reflect...