... developed conditions, as secondary flows are not simply disrupted in the bend but also reversed. In order to compute the bulk temperature in the channel, the computed velocity field was used to weight the experimental fluid temperature measurements. Thus a bulk temperature history could be computed...

... existing methods of temperature measurement. The measurement inaccuracy due to conduction and radiation errors and calibration drift found in thermocouples is significantly reduced; it can measure both stagnation temperature and pressure, halving the instrumentation costs; it has no wiring or transducer...

... if this approach were used. Comparison of SS thermocouple and TLC temperature measurements In order to illustrate the accuracy of the liquid crystal technique, comparisons of the temperatures acquired by the TLC and the thermocouples on the SS are presented in Fig. 11 . The TLC experimental...

... 2009 25 10 2010 25 10 2010 blades cooling engines flow instability flow separation Mach number pressure measurement pulsatile flow temperature measurement turbulence wakes Modern turbo-engine design has been showing a trend toward highly loaded turbine blades in order...

..., that protocol is discussed first. The effect of blade-tip geometry on the temperature measurements was so large that it was necessary to use a different scale in the ordinate of the figure to present group 1 measurements. Group 5, 6, and 7 measurements, all for the modified blade tip with reduced area...

... both the magnitude and profile of total pressure and total temperature measurements. Part I of this paper describes the establishment of the required numerical simulation procedures. The computational domains are limited to the first three blade rows for the first multistage fan and the last three...

... were considered at blowing ratios B of 0.50 and 1.0 with jet pulsing and wake Strouhal numbers of 0.15, 0.30, and 0.60. Wake timing was varied with respect to the pulsing. Temperature measurements were made using an infrared camera, thermocouples, and constant current (cold wire) anemometry. The local...

... considered at blowing ratios of 0.25, 0.50, and 1.0 with a steady freestream and with wake Strouhal numbers of 0.15, 0.30, and 0.60. Temperature measurements were made using an infrared camera, thermocouples, and constant current (cold-wire) anemometry. Hot-wire anemometry was used for velocity measurements...

... in Fig. 7 . Large cooling facility 13 07 2006 16 07 2006 24 03 2008 aerodynamics temperature measurement pressure measurement heat exchangers heat transfer turbines blades computational fluid dynamics The high-pressure turbine stage (vanes, blades...

... 90% cooled and uncooled heat flux Blade 50% net heat flux reduction 50% net heat flux reduction with heat flux turbines blades computational fluid dynamics heat transfer rotors flow measurement pressure measurement temperature measurement aerodynamics Part I...

... understanding of the influence of fluctuations in temperature fields. 17 07 2006 25 09 2006 28 01 2008 heat transfer temperature sensors temperature measurement gas turbines blades Despite the progress in the field of optical measurement techniques for the determination...

... inclined at 35 deg to the surface of a flat plate were considered at blowing ratios of 0.25, 0.5, 1.0, and 1.5 for a variety of pulsing frequencies and duty cycles. Temperature measurements were made using an infrared camera, thermocouples, and cold-wire anemometry. Hot-wire anemometry was used...

... temperature distribution temperature measurement vortices flow separation drag The cycle efficiency of a gas turbine can be enhanced through raising its inlet temperature. However, there is a limitation in increasing the inlet temperature due to the material problem...

... cooling temperature measurement turbines boundary layers rotors Technical advancements in the gas turbine industry require higher turbine rotor inlet temperatures to allow for more efficient operation and engine performance. Inlet temperatures to the rotor...

... in order to increase the accuracy of the surface temperature measurements and, thus, of the film cooling effectiveness data, following the approach described by Martiny et al. ( 23 ). The local film-cooling effectiveness is then based on the local surface temperature, coolant supply total temperature...

... . 12 Axial velocity profiles along spanwise traverse lines at 1.3 diameters above Jet 3, for rotating conditions. Re = 15,000 and Ro = − 0.18 . cooling jets rotational flow flow visualisation gas turbines temperature measurement Until now the design...

.... heat transfer temperature distribution pressure measurement temperature measurement turbulent diffusion pipe flow The production of turbulence in pin arrays is known to be responsible for enhancing heat transfer rates on pins and endwalls. Simoneau and Van Fossen 8 acquired turbulence...

... 2004 heat transfer temperature measurement heat measurement turbines resistance thermometers thin film resistors flow measurement stators The design of a blade cooling scheme for a turbine stage requires the knowledge of the heat transfer coefficient around the considered airfoil...

... carrying a Kiel probe and a fast response Kulite pressure probe for pressure measurements and a thermocouple probe and a cold wire resistance probe for temperature measurements. The results confirm the observation of energy separation in the wake as found by other researchers. The experimental data...

... roughness on heat transfer and pressure loss is determined along with the various interactions among these parameters. 12 12 2003 31 08 2004 heat transfer jets rough surfaces boundary layers infrared imaging temperature measurement First presented at the 2001 International...