Results 171 to 180 of about 251,736 (207)

The Base Pressure Problem in Transonic Turbine Cascades

Journal of Engineering for Power, 1979
Base pressure data were systematically collected at VKI during recent years on a great variety of cascades operated over a wide range of outlet March numbers. An attempt is made to correlate these data by relating the base pressure to important cascade and flow parameters.
C. H. Sieverding, M. Stanislas, J. Snoek
openaire   +1 more source

Time Resolved DPIV in a Transonic Turbine Cascade

Volume 10: Heat Transfer, Fluid Flows, and Thermal Systems, Parts A, B, and C, 2008
This paper presents an extension of existing Proper Orthogonal Decomposition (POD) based methods for gappy data reconstruction to allow its use with experimental data without a priori knowledge of the ‘True’ solution, and applies it time-resolved DPIV data taken in a transonic turbine cascade.
Samuel Raben, John Charonko, Wing F. Ng, Pavlos P. Vlachos   +3 more
openaire   +1 more source

Performance Measurement of the Second Stage of a Transonic Turbine

Volume 1: Aircraft Engine; Marine; Turbomachinery; Microturbines and Small Turbomachinery, 2001
In November 1999 the turbine test facility at the Institute for Thermal Turbomachinery and Machine Dynamics was completed. This test stand is a cold flow transonic test turbine facility, which is a unique combination of a 2.3 MW axial test turbine and a directly-coupled compressor that generates about the half of the compressed air needed to drive the ...
A. Seyr, G. Kulhanek, F. Neumayer, E. Rossi, W. Sanz   +4 more
openaire   +1 more source

The Trailing Edge Loss of Transonic Turbine Blades

Volume 1: Turbomachinery, 1989
Trailing edge loss is one of the main sources of loss for transonic turbine blades, contributing typically 1/3 of their total loss. Transonic trailing edge flow is extremely complex, the basic flow pattern is understood but methods of predicting the loss are currently based on empirical correlations for the base pressure.
J. D. Denton, L. Xu
openaire   +1 more source

Assessment of the Flow Quality of a Transonic Turbine Cascade

Volume 7: Turbomachinery, Parts A and B, 2009
The assessment of flow quality through a newly constructed transonic turbine cascade is presented. Although the main objective of this research was to investigate the effect of the modification of a vane profile due to repair on pressure loss, only the results for checking the flow periodicity, two-dimensionality of the flow and transonic exit flow ...
R. Woodason, A. Asghar, W. D. E. Allan
openaire   +1 more source

Development of an Experimental Correlation for Transonic Turbine Flow

Journal of Turbomachinery, 1987
Optimization of transonic turbine bladings over a broad range of operating conditions calls for better understanding of the relationship between blade profile loss and cascade geometric parameters. In fact, many of the experimental correlations published to date have failed to take into due consideration transonic effects, while others have considered ...
MARTELLI, FRANCESCO, Boretti A. A.
openaire   +2 more sources

Blade-tip heat transfer in a transonic turbine

Proceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy, 2005
The blade-tips of high-pressure turbine blades in a gas turbine engine are subjected to strong convective heat transfer and continued to present a significant design challenge to manufacturers. This paper is concerned with developing an understanding of the unsteady flow physics that influences the blade-tip heat transfer.
S J Thorpe, S Yoshino, G A Thomas, R W Ainsworth, N W Harvey   +4 more
openaire   +1 more source

Throughflow Calculations for Transonic Axial Flow Turbines

Journal of Engineering for Power, 1978
The development of a streamline curvature throughflow program to predict the flow through the low pressure stages of large steam turbines is described. The program can also be used for gas turbines. Difficulties encountered in dealing with transonic flow and multiple high pressure ratio stages are discussed.
openaire   +1 more source

Flowfield measurements in a transonic turbine

1995
Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1995. ; Includes bibliographical references (p. 134-135). ; by Emmanuel Michel d'Hoop. ; M.S.
openaire   +1 more source

Studies on Transonic Turbine with Film-Cooled Blades

1977
Abstract : In the third year of the contract, further advances were made towards the goal of gathering the heat transfer and aerodynamics flow data necessary for a good understanding of the performance of film-cooled, highly-loaded, transonic turbine blading.
J. F. Louis, R. F. Topping, F. Hajjar, N. Adams   +3 more
openaire   +1 more source