Vortex organization in a turbulent boundary layer overlying sparse roughness elements
نویسندگان
چکیده
منابع مشابه
Adjustment of a turbulent boundary layer to a canopy of roughness elements
S. E. BELCHER, N. JERRAM and J. C. R. HUNT Journal of Fluid Mechanics / Volume 488 / July 2003, pp 369 398 DOI: 10.1017/S0022112003005019, Published online: 02 July 2003 Link to this article: http://journals.cambridge.org/abstract_S0022112003005019 How to cite this article: S. E. BELCHER, N. JERRAM and J. C. R. HUNT (2003). Adjustment of a turbulent boundary layer to a canopy of roughness ele...
متن کاملExperimental investigation of vortex properties in a turbulent boundary layer
Related Articles Barriers to front propagation in ordered and disordered vortex flows Chaos 22, 037103 (2012) Three-dimensional wake transition behind an inclined flat plate Phys. Fluids 24, 094107 (2012) The Fefferman-Stein decomposition for the Constantin-Lax-Majda equation: Regularity criteria for inviscid fluid dynamics revisited J. Math. Phys. 53, 115607 (2012) Linearized potential vortici...
متن کاملDynamic roughness perturbation of a turbulent boundary layer
The zero-pressure-gradient turbulent boundary layer over a flat plate was perturbed by a temporally oscillating, spatial impulse of roughness, and the downstream response of the flow field was interrogated by hot-wire anemometry and particleimage velocimetry. The key features common to impulsively perturbed boundary layers, as identified in Jacobi & McKeon (J. Fluid Mech., 2011), were investiga...
متن کاملVortex Filament Simulation of the Turbulent Boundary Layer
A hybrid vortex filament scheme with the capability of simulating bounded turbulent flows is described. Viscous generation of new vortex elements at solid surfaces is accomplished through the intermediary step of solving the viscous vorticity transport equation on a thin boundary mesh via a finite difference and finite volume method. The transitional and turbulent boundary-layer flow past a wid...
متن کاملCompressible boundary layer transition induced by isolated roughness elements
The laminar-to-turbulent transition of boundary layers induced by isolated threedimensional roughness elements is analyzed by mining a direct numerical simulation database, which covers the variation of many physical parameters, including Mach and Reynolds numbers, and obstacle shape and size. We find that the transition process is approximately controlled by a Reynolds number based on the mome...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Hydraulic Research
سال: 2012
ISSN: 0022-1686,1814-2079
DOI: 10.1080/00221686.2012.729229