Abo Bibliothek: Guest
ICHMT DL Home Aktuelles Jahr Archive Vorstand International Centre for Heat and Mass Transfer

HEAT TRANSFER CHARACTERISTICS ON TIP AND INNER RIM SURFACES OF A BLADEWITH SQUEALER RIM

DOI: 10.1615/ICHMT.2009.HeatTransfGasTurbSyst.40
page 8

Jun Su Park
School of Mechanical Engineering, Yonsei University, Seoul 120-749 Korea

Dong Hyun Lee
School of Mechanical Engineering Yonsei University, Seoul 120-749 Korea

Woo Jin Lee
School of Mechanical Engineering, Yonsei University, Seoul 120-749 Korea

Hyung-Hee Cho
School of Mechanical Engineering, Yonsei University, Seoul 120 749, South Korea

Dong-Ho Rhee
Korea Aerospace Research Institute Daejeon, 305-333, Korea

Shin-Hyung Kang
School of Mechanical and Aerospace Engineering, Seoul National University Seoul, Korea

Abstrakt

Detailed heat/mass transfer coefficients were measured on the tip and inner rim surfaces of a rotor blade with a squealer rim. The blade was a two-dimensional version of a modern first-stage gas turbine rotor blade with a squealer rim. The experimental apparatus was equipped with a linear cascade of three blades, the axial chord length of which was 237 mm and the pitch was 213 mm. Measurements were made at three different tip clearances, of about 1%, 2%, and 3% of the axial chord length, and the rim height was fixed at 6% of the axial chord length. The main flow Reynolds number based on the axial chord was 1.5×105. High heat transfer rates were observed near the leading edge in all cases, due to the reattachment of leakage flow. The peak values moved toward the suction-side edge and the magnitude and area of high heat/mass transfer increased near the leading edge as the tip clearance increased.

ICHMT Digital Library

Bow shocks on a jet-like solid body shape. Thermal Sciences 2004, 2004. Pulsed, supersonic fuel jets - their characteristics and potential for improved diesel engine injection. PULSED, SUPERSONIC FUEL JETS - THEIR CHARACTERISTICS AND POTENTIAL FOR IMPROVED DIESEL ENGINE INJECTION
View of engine compartment components (left). Plots of temperature distributions in centreplane, forward of engine (right). CHT-04 - Advances in Computational Heat Transfer III, 2004. Devel... DEVELOPMENT AND CURRENT STATUS OF INDUSTRIAL THERMOFLUIDS CFD ANALYSIS
Pratt & Whitney's F-135 Joint Strike Fighter Engine under test in Florida is a 3600F class jet engine. TURBINE-09, 2009. Turbine airfoil leading edge stagnation aerodynamics and heat transfe... TURBINE AIRFOIL LEADING EDGE STAGNATION AERODYNAMICS AND HEAT TRANSFER - A REVIEW
Refractive index reconstructed field. (a) Second iteration. (b) Fourth iteration. Radiative Transfer - VI, 2010. Theoretical development for refractive index reconstruction from a radiative ... THEORETICAL DEVELOPMENT FOR REFRACTIVE INDEX RECONSTRUCTION FROM A RADIATIVE TRANSFER EQUATION-BASED ALGORITHM
Two inclusion test, four collimated sources. Radiative Transfer - VI, 2010. New developments in frequency domain optical tomography. Part II. Application with a L-BFGS associated to an inexa... NEW DEVELOPMENTS IN FREQUENCY DOMAIN OPTICAL TOMOGRAPHY. PART II. APPLICATION WITH A L-BFGS ASSOCIATED TO AN INEXACT LINE SEARCH