Journal ArticleDOI
Experimental and numerical investigation of 2-D backward-facing step flow
Tim Lee,Dan Mateescu +1 more
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In this paper, the lengths of separation and reattachment on the upper and lower walls were measured nonintrusively using closely spaced, multi-element hot-film sensor arrays for Re≤3000 and expansion ratios of 1·17 and 2·0.About:
This article is published in Journal of Fluids and Structures.The article was published on 1998-08-01. It has received 141 citations till now. The article focuses on the topics: Pipe flow & Flow separation.read more
Citations
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Journal ArticleDOI
Backward-Facing Step Flows for Various Expansion Ratios at Low and Moderate Reynolds Numbers
TL;DR: In this article, the behavior of flows over a backward-facing step geometry for various expansion ratios H/h=1.9423, 2.5 and 3.0 was investigated.
Journal ArticleDOI
Numerical solutions of 2-D steady incompressible flow over a backward-facing step, Part I: High Reynolds number solutions
TL;DR: In this article, the Navier-Stokes equations were solved with a finite difference numerical method, which proved to be highly stable even at very high Reynolds numbers, and compared with experimental and numerical results found in the literature.
Journal ArticleDOI
Blood flow and coherent vortices in the normal and aneurysmatic aortas: a fluid dynamical approach to intra-luminal thrombus formation
TL;DR: A fluid-dynamics-motivated mechanism for platelet activation, convection and deposition in AAAs that has the potential of improving the current understanding of the pathophysiology of fluid-driven ILT growth.
Journal ArticleDOI
A comprehensive iso-octane combustion model with improved thermochemistry and chemical kinetics
Nour Atef,Goutham Kukkadapu,Samah Y. Mohamed,Mariam J. Al Rashidi,Colin Banyon,Marco Mehl,Karl Alexander Heufer,Ehson F. Nasir,Adamu Alfazazi,Apurba K. Das,Charles K. Westbrook,William J. Pitz,Tianfeng Lu,Aamir Farooq,Chih-Jen Sung,Henry J. Curran,Mani Sarathy +16 more
TL;DR: In this article, the authors presented work was supported by Saudi Aramco under the FUELCOM program and by the King Abdullah University of Science and Technology (KAUST) with competitive research funding given to the Clean Combustion Research Center (CCRC).
Journal ArticleDOI
A review of Backward-Facing Step (BFS) flow mechanisms, heat transfer and control
TL;DR: It is shown that the step size (duct expansion ratio) will define the basic re-circulation and re-attachment process, while the coupled effects of inflow parameters and the perturbation designs also help shape the flow behaviors after BFS.
References
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Journal ArticleDOI
Application of a Fractional-Step Method to Incompressible Navier-Stokes Equations
John Kim,Parviz Moin +1 more
TL;DR: In this paper, a numerical method for computing three-dimensional, time-dependent incompressible flows is presented based on a fractional-step, or time-splitting, scheme in conjunction with the approximate-factorization technique.
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Experimental and Theoretical Investigation of Backward-Facing Step Flow
TL;DR: In this paper, the velocity distribution and reattachment length of a single backward-facing step mounted in a two-dimensional channel were measured using laser-Doppler measurements.
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A Review of Research on Subsonic Turbulent Flow Reattachment
John K. Eaton,James P. Johnston +1 more
TL;DR: A review of the available data for turbulent flows over backward-facing steps, including some new data of our own and other previously unpublished data, is presented in this paper, where the authors suggest several areas of research that could lead to improvements in our ability to predict flows with separation bubbles.
Journal ArticleDOI
A test problem for outflow boundary conditions—flow over a backward-facing step
TL;DR: In this paper, a numerical solution for steady incompressible flow over a two-dimensional backward-facing step using a Galerkin-based finite element method was developed, and the Reynolds number for the simulations is 800.
Journal ArticleDOI
Combined Heat Transfer and Fluid Dynamic Measurements Downstream of a Backward-Facing Step
J. C. Vogel,John K. Eaton +1 more
TL;DR: In this paper, the authors combined heat transfer and fluid dynamic measurements in a separated and reattaching boundary layer, with emphasis on the near-wall region, to obtain Stanton number profiles as a function of Reynolds number and boundary layer thickness at separation.
Related Papers (5)
Direct numerical simulation of turbulent flow over a backward-facing step
Hung Le,Parviz Moin,John Kim +2 more