Results 21 to 30 of about 50,445 (343)
Simulation of transonic buffet with an automated zonal DES approach
CEAS Aeronautical Journal, 2020 A study of transonic buffet on the NASA Common Research Model at flight Reynolds numbers is presented. The ability of two different hybrid RANS/LES models as well as the URANS approach for resolving three-dimensional buffet motion was evaluated by means ...
Maximilian Ehrle +3 more
semanticscholar +1 more source
Advanced Compressor Loss Correlations, Part I: Theoretical Aspects
International 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 Admissible Locations of Transonic Shock Fronts for Steady Euler Flows in an Almost Flat Finite Nozzle with Prescribed Receiver Pressure [PDF]
Communications on Pure and Applied Mathematics, 2019 This paper concerns the existence of transonic shock solutions to the 2‐D steady compressible Euler system in an almost flat finite nozzle (in the sense that it is a generic small perturbation of a flat one), under physical boundary conditions proposed ...
Beixiang Fang, Z. Xin
semanticscholar +1 more source
On Transonic Marginal Separation [PDF]
PAMM, 2004 AbstractLaminar boundary‐layer separation near the leading edge of a thin airfoil is one of the principal factors that limits the lift force acting on the airfoil. Marginal separation, in particular, denotes the onset of separation which is accompanied by the formation of a short separation bubble.
Kluwick, Alfred, Streibl, Bernhard
openaire +1 more source
Structural Stability of the Transonic Shock Problem in a Divergent Three-Dimensional Axisymmetric Perturbed Nozzle [PDF]
SIAM Journal on Mathematical Analysis, 2019 In this paper, we prove the structural stability of the transonic shocks for three dimensional axisymmetric Euler system with swirl velocity under the perturbations for the incoming supersonic flow, the nozzle boundary, and the exit pressure.
S. Weng, Chunjing Xie, Z. Xin
semanticscholar +1 more source
Advanced Compressor Loss Correlations, Part II: Experimental Verifications
International 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
Bulletin 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
On transonic viscous–inviscid interaction [PDF]
Journal of Fluid Mechanics, 2002 The paper is concerned with the interaction between the boundary layer on a smooth body surface and the outer inviscid compressible flow in the vicinity of a sonic point. First, a family of local self-similar solutions of the Kármán–Guderley equation describing the inviscid flow behaviour immediately outside the interaction region is analysed; one ...
Buldakov, E, Ruban, AI
openaire +3 more sources
Flow Characteristics and Loss Models of the Transonic Radial Turbine
Applied 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
Sound radiation and transonic boundaries of a plate with an acoustic black hole.
Journal of the Acoustical Society of America, 2019 The acoustic black hole (ABH) phenomenon has shown promise for noise and vibration control applications. In this paper, a two-dimensional (2-D) Daubechies wavelet (DW) model is established for the sound radiation prediction of plates embedded with a ...
Li Ma, Li Cheng
semanticscholar +1 more source