Results 11 to 20 of about 251,736 (207)

On the challenge of five-hole-probe measurements at high subsonic Mach numbers in the wake of transonic turbine cascades

Journal of the Global Power and Propulsion Society, 2018
Five-hole-probes are common use in turbomachinery flow investigations, even though, inserting a probe into a flow field inevitably induces perturbations to the flow which can falsify the measurement results, especially when exposed to transonic flows ...
Marcel Boerner, Martin Bitter, Reinhard Niehuis   +2 more
doaj   +2 more sources

Optimisation of aero and industrial gas turbine design for the environment [PDF]

, 2009
The aspects of gas turbine design that are explored herein are focussed on reduction or elimination of carbon dioxide (CO2) emissions and reduction of noise. There are 3 separate but related investigations. 1.
Jackson, Anthony J. B.
core   +7 more sources

Effect of humidity on transonic flow [PDF]

, 2008
An experimental investigation of the effects of humidity-induced condensation on shock/boundary-layer interaction has been conducted in a transonic wind-tunnel test.
Gault, R.I., Raghunathan, S., Huang, J.C., Benard, E.   +3 more
core   +9 more sources

Periodic transonic flow and control [PDF]

, 2008
The current understanding of periodic transonic flow is reviewed briefly. The effects of boundary-layer transition, non-adiabatic wall conditions and modifications to the aerofoil surface geometry at the shock interactions on periodic transonic flow are ...
Quest, J., Early, J.M., Tulita, C., C. Tulita, Raghunathan, Srinivasan, Benard, Emmanuel, Raghunathan, S., Quest, Juergen, E. Benard, S. Raghunathan, Benard, E., Tulita, Catalin, J. Quest, Early, Juliana M., J.M. Early   +14 more
core   +1 more source

Unsteady Simulation of a Transonic Turbine Stage with Focus on Turbulence Prediction

International Journal of Turbomachinery, Propulsion and Power, 2021
The flow in a transonic turbine stage still poses a high challenge for the correct prediction of turbulence using an eddy viscosity model. Therefore, an unsteady RANS simulation with the k-ω SST model, based on a preceding study of turbulence inlet ...
Wolfgang Sanz, David Scheier
doaj   +1 more source

Numerical analysis of dynamic wind turbine airfoil characteristics in transonic flow [PDF]

Wind Energy Science
Modern large wind turbine rotors can encounter airflow at inflow Mach numbers of around 0.3 and Reynolds numbers of the order of 10 million at the blade tip.
M. C. Vitulano, M. C. Vitulano, D. De Tavernier, G. De Stefano, D. von Terzi   +4 more
doaj   +1 more source

Studies in transonic flow

, 1983
This thesis is divided into, two distinct parts. Part I describes the design and development of an intermittent cryogenic wind-tunnel, in which the cold conditions are generated by the expansion of high pressure gas.
Mohan, S. R.
core   +7 more sources

Experimental study of transonic flow over a wind turbine airfoil [PDF]

Wind Energy Science
For the largest wind turbines currently being designed, operation close to cut-out conditions can lead to the tip airfoil experiencing transonic flow conditions.
A. Aditya, M. C. Vitulano, D. De Tavernier, F. Schrijer, B. van Oudheusden, D. von Terzi   +5 more
doaj   +1 more source

Structural and Aerodynamical Parametric Study of Truss-Core ‎Gas Turbine Rotor Blade [PDF]

Journal of Applied and Computational Mechanics, 2021
Improvement of turbine blades is currently the prime area of research dedicated to the development of more efficient gas turbines. This study examines the structural performance of the gas turbine rotor and stator blades with the implementation of Kagome
Dulat Akzhigitov, Tamerlan Srymbetov, Abilkhairkhan Aldabergen, Christos Spitas   +3 more
doaj   +1 more source

Causes and Solution of Aperiodicity of Supersonic Flow Field Downstream of a Profile Cascade

Communications, 2012
The paper deals with problems of transonic flow field periodicity downstream of a profile cascade with finite number of blades. The origin of phenomena generating this aperiodicity in transonic wind tunnel is described.
Martin Luxa, Jaroslav Synac, Pavel Safarik, David Simurda   +3 more
doaj   +1 more source