Results 21 to 30 of about 454,024 (311)

Decomposition Methods For a Piv Data Analysis with Application to a Boundary Layer Separation Dynamics [PDF]

open access: yesTransactions of the VŠB-Technical University of Ostrava, Mechanical Series, 2010
Separation of the turbulent boundary layer (BL) on a flat plate under adverse pressure gradient was studied experimentally using Time-Resolved PIV technique. The results of spatio-temporal analysis of flow-field in the separation zone are presented. For
Václav URUBA
doaj  

Entrainment and boundary-layer separation: a modeling history [PDF]

open access: yesJournal of Engineering Mathematics, 2017
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +2 more sources

Investigation of turbulence models with compressibility corrections for hypersonic boundary flows

open access: yesAdvances in Mechanical Engineering, 2015
The applications of pressure work, pressure-dilatation, and dilatation-dissipation (Sarkar, Zeman, and Wilcox) models to hypersonic boundary flows are investigated.
Han Tang, Zhenxun Gao
doaj   +1 more source

Analysis of the Shock Wave/Boundary Layer Interaction considering a Compression Corner Model Using the MacCormack Method

open access: yesJournal of Engineering, 2023
The objective of this paper is to numerically study the shock wave/boundary layer interaction and boundary layer separation. The first stage of this research is the development of methodology, flow simulations, and data analysis. When comparing the plots,
Ana Maria Pereira Lara   +1 more
doaj   +1 more source

Closed-loop separation control over a sharp edge ramp using Genetic Programming [PDF]

open access: yes, 2015
We experimentally perform open and closed-loop control of a separating turbulent boundary layer downstream from a sharp edge ramp. The turbulent boundary layer just above the separation point has a Reynolds number $Re_{\theta}\approx 3\,500$ based on ...
A Seifert   +37 more
core   +2 more sources

Numerical Analysis of Effect of Boundary Layer Characteristics on the Flow Field in S-shaped Inlet

open access: yesMATEC Web of Conferences, 2015
In order to explore the effect of boundary layer thickness and pressure gradient on the performance of the flow field in the inlet, we design a high offset rate S-shaped inlet based on a certain unmanned aerial vehicle (UAV), and its author has analyzed ...
Ren Jia   +4 more
doaj   +1 more source

Experimental Study on Time Evolution of Shock Wave and Turbulent Boundary Layer Interactions

open access: yesJournal of Applied Fluid Mechanics, 2020
In this paper, a test system based on the Nano-tracer Planar Laser Scattering (NPLS) technique for studying time evolution of unsteady flow structures was finished.
X. G. Lu   +4 more
doaj  

Numerical investigation of nanosecond pulsed plasma actuators for control of shock-wave/boundary-layer separation

open access: yes, 2018
This study numerically explores the flow physics associated with nanosecond pulsed plasma actuators to control shock-wave induced boundary-layer separation.
Kinefuchi, Kiyoshi   +2 more
core   +1 more source

Unsteady separation in vortex-induced boundary layers [PDF]

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014
This paper provides a brief review of the analytical and numerical developments related to unsteady boundary-layer separation, in particular as it relates to vortex-induced flows, leading up to our present understanding of this important feature in high-Reynolds-number, surface-bounded flows in the presence of an adverse pressure gradient.
Cassel, K. W., Conlisk, A. T.
openaire   +3 more sources

The Study of Different Fairings for Fairing and Drag Reduction on theLow-wing Layout Aircraft

open access: yesHangkong gongcheng jinzhan, 2018
For the low-wing configuration aircraft, server flow interference exist at the wing-body junction, the boundary layer stack at the junction is the main reason for flow separation, the flow separation results in drag addition.
Zhang Li, Gao Zhenghong
doaj   +1 more source

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