Results 11 to 20 of about 70,445 (357)

Numerical Study of Transonic Axial Flow Rotating Cascade Aerodynamics – Part 1: 2D Case [PDF]

open access: yesINCAS Bulletin, 2014
The purpose of this paper is to present a 2D study regarding the numerical simulation of flow within a transonic highly-loaded rotating cascade from an axial compressor.
Irina Carmen ANDREI
doaj   +1 more source

Transonic Buffet Active Control with Local Smart Skin

open access: yesActuators, 2022
Transonic flight has high economic benefits, but the appearance of transonic buffet limits the flight envelope. The shock control bump currently used for transonic buffet suppression tends to degrade the aerodynamic performance of the non-buffeting state.
Kai Ren   +3 more
doaj   +1 more source

Advanced Compressor Loss Correlations, Part II: Experimental Verifications

open access: yesInternational Journal of Rotating Machinery, 1997
Reliable efficiency calculation of high-subsonic and transonic compressor stages requires a detailed and accurate prediction of the flow field within these stages.
M. T. Schobeiri
doaj   +1 more source

On an Exact Step Length in Gradient-Based Aerodynamic Shape Optimization—Part II: Viscous Flows

open access: yesFluids, 2021
This study presents an extension of a previous study (On an Exact Step Length in Gradient-Based Aerodynamic Shape Optimization) to viscous transonic flows. In this work, we showed that the same procedure to derive an explicit expression for an exact step
Farzad Mohebbi   +2 more
doaj   +1 more source

Transonic dislocation propagation in diamond

open access: yesScience, 2023
The motion of line defects (dislocations) has been studied for more than 60 years, but the maximum speed at which they can move is unresolved. Recent models and atomistic simulations predict the existence of a limiting velocity of dislocation motion between the transonic and subsonic ranges at which the self-energy of dislocation diverges, though they ...
Katagiri, Kento   +26 more
openaire   +5 more sources

Advanced Compressor Loss Correlations, Part I: Theoretical Aspects

open access: yesInternational Journal of Rotating Machinery, 1997
Reliable efficiency calculation of high-subsonic and transonic compressor stages requires a detailed and accurate prediction of the flow field within these stages.
M. T. Schobeiri
doaj   +1 more source

Multidimensional transonic shock waves and free boundary problems

open access: yesBulletin of Mathematical Sciences, 2022
We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics.
Gui-Qiang G. Chen, Mikhail Feldman
doaj   +1 more source

Flow Characteristics and Loss Models of the Transonic Radial Turbine

open access: yesApplied Sciences, 2022
A hydrogen turbo hybrid power system has the significant advantages of zero carbon emissions, high efficiency and high reliability. The need to increase the power density of hydrogen turbo hybrid power systems and improve the adaptability of turbines ...
Cheng Zhu, Weilin Zhuge, Yangjun Zhang
doaj   +1 more source

Tip gap size effects on thermal performance of cavity-winglet tips in transonic turbine cascade with endwall motion

open access: yesJournal of the Global Power and Propulsion Society, 2017
The thermal performance of two cavity-winglet tips with endwall motion is investigated in a transonic high pressure turbine cascade, which operates at an engine representative exit Mach number of 1.2 and an exit Reynolds number of 1.7 × 106.
Fangpan Zhong, Chao Zhou
doaj   +1 more source

A Unified Asymptotic Theory of Supersonic, Transonic, and Hypersonic Far Fields

open access: yesAxioms, 2022
The problems of steady, inviscid, isentropic, irrotational supersonic plane flow passing a body with a small thickness ratio was solved by the linearized theory, which is a first approximation at and near the surface but fails at far fields from the body.
Lung-Jieh Yang, Chao-Kang Feng
doaj   +1 more source

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