Results 11 to 20 of about 22,502 (309)
Energies, 2021 Transition to turbulence and changes in the fluid flow structure are subjects of continuous analysis and research, especially for unique fields of research such as the thermo-magnetic convection of weakly magnetic fluids.
Anna Kraszewska, Janusz Donizak
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Numerical Study of the Effect of Freestream Turbulence on by-pass Transition in a Boundary Layer [PDF]
, 2014 We use direct numerical simulations in the presence of free-stream turbulence having different values of intensity, T u, and integral length scale, L, in order to determine which kind of structures are involved in the path to transition of a boundary ...
Robinet, Jean Christophe +3 more
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Direct numerical simulations of transition in a compressor cascade: The influence of free-stream turbulence [PDF]
, 2010 Copyright © Cambridge University Press 2010.The flow through a compressor passage without and with incoming free-stream grid turbulence is simulated.
TAMER A. ZAKI +7 more
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Study of Transition to Turbulence in a Supersonic Boundary Layer Using DNS and Transition Prediction
Journal of Fluid Science and Technology, 2007 The current understanding of supersonic boundary layer transition is reviewed in this paper. The material focuses on bypass transition in a plane supersonic boundary layer. Recent advances in DNS and engineering prediction of transition are discussed. It
Hiroshi MAEKAWA
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International Journal of Turbomachinery, Propulsion and Power, 2020 An algebraic intermittency model for boundary layer flow transition from laminar to turbulent state, is extended using an experimental data base on boundary layer flows with various transition types and results by large eddy simulation of transition in a
Slawomir Kubacki +3 more
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Transition to turbulence in suspension Taylor-Couette flow [PDF]
EPJ Web of ConferencesThe pattern transition routes to turbulence are explored via experiments in a Taylor-Couette setup for neutrally-buoyant suspensions of non-colloidal particles in the counter-rotation regime.
Alam Meheboob, Ghosh Manojit
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Flow Statistics in the Transitional Regime of Plane Channel Flow
Entropy, 2020 The transitional regime of plane channel flow is investigated above the transitional point below which turbulence is not sustained, using direct numerical simulation in large domains.
Pavan V. Kashyap +2 more
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Nonlinear optimal perturbations in a Couette flow: bursting and transition [PDF]
, 2013 This paper provides the analysis of bursting and transition to turbulence in a Couette flow, based on the growth of nonlinear optimal disturbances. We use a global variational procedure to identify such optimal disturbances, defined as those initial ...
DE PALMA, Pietro, CHERUBINI, Stefania
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International Journal of Turbomachinery, Propulsion and Power, 2018 For the numerical prediction of turbomachinery flows, a two-equation turbulence model in combination with a proper transition model to account for laminar boundary layers and their transition to turbulence is state of the art.
Christoph Bode +3 more
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The minimal seed of turbulent transition in the boundary layer [PDF]
, 2011 This paper describes a scenario of transition from laminar to turbulent flow in a spatially developing boundary layer over a flat plate. The base flow is the Blasius non-parallel flow solution; it is perturbed by optimal disturbances yielding the largest
DE PALMA, Pietro +8 more
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