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Keywords: temperature distribution
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Journal Articles
Computational Analysis of Conjugate Heat Transfer and Particulate Deposition on a High Pressure Turbine Vane
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2012, 134(4): 041020.
Published Online: July 25, 2011
... transfer calculations were performed to determine the temperature distribution and heat transfer coefficient in the region close to the film cooling hole and in the regions further downstream of a row of film cooling holes. Computational and experimental results were compared to understand the effect...
Journal Articles
Heat Transfer for the Blade of a Cooled Stage and One-Half High-Pressure Turbine—Part I: Influence of Cooling Variation
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031014.
Published Online: July 15, 2011
... suction surface, but small changes are observed for the pressure surface. In addition to the cooling study, a novel method of calculating the adiabatic wall temperature is demonstrated. The derived adiabatic wall temperature distribution shows very similar trends to the Stanton number distribution...
Journal Articles
Transient Thermal Field Measurements in a High Aspect Ratio Channel Related to Transient Thermochromic Liquid Crystal Experiments
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. May 2012, 134(3): 031002.
Published Online: July 14, 2011
...Sean C. Jenkins; Igor V. Shevchuk; Jens von Wolfersdorf; Bernhard Weigand Measurements of transient fluid temperature distributions were made in a high aspect ratio (4:1) internally ribbed two-pass channel relating to the measurement of heat transfer using the transient thermochromic liquid crystal...
Journal Articles
Aerothermal Investigation of a Rib-Roughened Trailing Edge Channel With Crossing Jets—Part II: Heat Transfer Analysis
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2011, 133(3): 031024.
Published Online: December 7, 2010
... aerodynamics cavitation channel flow finite volume methods heat transfer jets Navier-Stokes equations temperature distribution State-of-the-art gas turbine engines are designed to operate at turbine inlet temperatures over 1850 K. Since modern alloys can withstand temperatures up to about 1350 K...
Journal Articles
Film Cooling Performance of Converging-Slot Holes With Different Exit-Entry Area Ratios
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. January 2011, 133(1): 011020.
Published Online: September 23, 2010
.... , 2009 , “ A Method for Processing Transient Heat Transfer Measurements in the Presence of Nonuniform Initial Wall Temperature ,” ASME Paper No. GT2009-59001. Liu , C. L. , Zhu , H. R. , and Bai , J. T. , 2009 , “ Study on Influence of Intial Wall Temperature Distribution...
Journal Articles
Heat Transfer Coefficients of Film Cooling on a Rotating Turbine Blade Model—Part I: Effect of Blowing Ratio
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041005.
Published Online: July 1, 2009
... ) was either 0 rpm or 800 rpm; the film cooling blowing ratios ranged from 0.4 to 2.0, and two averaged density ratios of 1.02 and 1.53 were employed with air and carbon dioxide ( CO 2 ) as the coolant, respectively. Thermochromic liquid crystal was used to measure the solid surface temperature distributions...
Journal Articles
Superposition Predictions of the Reduction of Hot Streaks by Coolant From a Film-Cooled Guide Vane
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. October 2009, 131(4): 041002.
Published Online: June 30, 2009
... distributions due to coolant injection and measured temperature distributions of hot streaks. These predictions were compared to the measured hot streak reduction to determine the accuracy of the superposition technique. Results showed that the superposition predictions generally underpredicted the reduction...
Journal Articles
Developments in Hot-Streak Simulators for Turbine Testing
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Research Papers
J. Turbomach. July 2009, 131(3): 031009.
Published Online: April 9, 2009
... Isentropic Light Piston Turbine Test Facility, is presented. 12 09 2007 23 07 2008 09 04 2009 aerodynamics blades combustion combustion equipment heat exchangers life testing mechanical testing reliability temperature distribution turbines Turbine inlet temperature...
Journal Articles
Large Eddy Simulation of Flow and Heat Transfer in a Channel Roughened by Square or Semicircle Ribs
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2005, 127(2): 263–269.
Published Online: May 5, 2005
... 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...
Journal Articles
Cooling the Tip of a Turbine Blade Using Pressure Side Holes—Part I: Adiabatic Effectiveness Measurements
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. April 2005, 127(2): 270–277.
Published Online: May 5, 2005
... cooling boundary layers turbines temperature distribution The performance of a turbine engine is a strong function of the
maximum gas temperature at the rotor inlet. Because turbine airfoils are exposed to
hot gas exiting the combustion chambers, the materials...
Journal Articles
Turbulent Augmentation of Internal Convection Over Pins in Staggered-Pin Fin Arrays
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 183–190.
Published Online: February 9, 2005
.... 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...
Journal Articles
A New Method to Calculate the Coolant Requirements of a High-Temperature Gas Turbine Blade
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 191–199.
Published Online: February 9, 2005
... where H is the blade length. He succeeded in obtaining full analytical solutions for the temperature distributions T b y and T cl y which we do not reproduce here. But his subsequent approximations to these solutions, using a spanwise mean value of X , X...
Journal Articles
The Transient Liquid Crystal Technique: Influence of Surface Curvature and Finite Wall Thickness
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 175–182.
Published Online: February 9, 2005
... as follows: (7) Θ = Θ S + Θ T where Θ S denotes the steady-state temperature distribution of the problem and Θ T describes the transient part. The steady-state part is given by (8) Θ S = A ln r ˜ + B with (9) A = Θ c...
Journal Articles
Influence of Stator Clocking on the Unsteady Three-Dimensional Flow in a Two-Stage Turbine
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2005, 127(1): 156–163.
Published Online: February 9, 2005
... that the influence of the clocking at the outlet is focused on the temperature distribution. Eulitz, F., Engel, K., and Gebing, H., 1996, “Numerical Investigation of the Clocking Effects in a Multistage Turbine,” ASME paper no. 96-GT-26, Birminghan, UK. Reinmoeller, U., Stephan, B., Schmidt, S., and Niehuis...
Journal Articles
A Novel Liquid Crystal Image Processing Technique Using Multiple Gas Temperature Steps to Determine Heat Transfer Coefficient Distribution and Adiabatic Wall Temperature
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2004, 126(4): 587–596.
Published Online: December 29, 2004
...Abd Rahim Abu Talib; Andrew J. Neely; Peter T. Ireland; Andrew J. Mullender This paper presents a novel experimental technique, which combines thermochromic liquid crystals with multiple steps in gas temperature, to determine heat transfer coefficient and adiabatic wall temperature distributions...
Journal Articles
A Transient Infrared Thermography Method for Simultaneous Film Cooling Effectiveness and Heat Transfer Coefficient Measurements From a Single Test
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2004, 126(4): 597–603.
Published Online: December 29, 2004
... Review Chair: A. J. Strazisar. 13 June 2004 01 October 2003 01 March 2004 29 12 2004 heat transfer infrared imaging temperature distribution jets turbines “Film cooling is the introduction of secondary fluid (coolant) at one or more discrete locations along...
Journal Articles
The Effects of High Mainstream Turbulence and Turbine Vane Film Cooling on the Dispersion of a Simulated Hot Streak
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. January 2004, 126(1): 203–211.
Published Online: March 26, 2004
... temperature distribution gas turbines film flow cooling boundary layer turbulence Nonuniform temperature profiles, or “hot streaks” exiting the combustor in a gas turbine engine play a large role in failures of the first stage nozzle guide vanes and rotor blades due to thermal loading. Since...
Journal Articles
Heat Transfer and Friction Factors for Flows Inside Circular Tubes With Concavity Surfaces
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. October 2003, 125(4): 665–672.
Published Online: December 1, 2003
... different concavity array densities were tested using tube bulk flow Reynolds numbers from 20,000 to 90,000. Liquid-crystal thermography was used to measure the temperature distributions on the outside of the concavity tubes. Using the average heat transfer coefficient for the fully developed region...
Journal Articles
Development and Evaluation of a High-Resolution Turbine Pyrometer System
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2002, 124(3): 439–444.
Published Online: July 10, 2002
...Torsten Eggert; Bjoern Schenk; Helmut Pucher Optical pyrometers provide many advantages over intrusive measuring techniques in determining the spatial and time varying temperature distribution of fast rotating components in gas turbines. This paper describes the development and evaluation...
Journal Articles
A Study of Convective Heat Transfer in a Model Rotor–Stator Disk Cavity
Available to Purchase
Journal:
Journal of Turbomachinery
Publisher: ASME
Article Type: Technical Papers
J. Turbomach. July 2001, 123(3): 621–632.
Published Online: March 1, 2001
... 5 to 8.6 × 10 5 , and the nondimensional secondary air flow rate, c w , ranged from 1504 to 7520. The secondary air was supplied at the cavity hub. All experiments were carried out at the same mainstream air flow rate, Re m = 5.0 × 10 5 . The cavity fluid temperature distribution was measured...
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