Large-eddy simulations of 90° pipe bend flows
WebbLarge-eddy simulations of 90º pipe bend flows - NASA/ADS Oscillatory phenomena in separated turbulent flows through 90° pipe bends are numerically investigated using large-eddy simulations. Curvature ratios of one and three pipe diameters are considered and the Reynolds numbers range from 5000 up to 27 000. Webb1 jan. 2001 · Large Eddy Simulation (LES) model is adopted to solve for time varying pressure and velocity fields. The structural vibration is investigated based on a …
Large-eddy simulations of 90° pipe bend flows
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WebbThe present study, performed via direct numerical simulation, focuses on the turbulent flow through a $90^{\circ }$ pipe bend preceded and followed by straight pipe … Webb26 apr. 2006 · Fully developed turbulent pipe flow: a comparison between direct numerical simulation and experiment Published online by Cambridge University Press: 26 April 2006 J. G. M. Eggels , F. Unger , M. H. Weiss , J. Westerweel , R. J. Adrian , R. Friedrich and F. T. M. Nieuwstadt Article Metrics Get access Cite Rights & Permissions Abstract
Webb1 okt. 2024 · Direct numerical simulation (DNS) has been performed for a spatially developing 90° bend pipe flow to investigate the unsteady flow motions downstream of … Webb24 apr. 2024 · Rütten et al. used large eddy simulation to study the oscillation of separated turbulence in 90-degree pipe bends. It was found that the total force spectrum showed an obvious peak in high-frequency field, which was associated to the vortex shedding inside the bends, and showed low-frequency oscillations at high Reynolds …
Webb1 juni 1996 · In this paper, we use Large-Eddy Simulation (LES) to compute a fully-developed turbulent flow in a curved pipe. The results allow us to study how the curvature influences the mean velocity profile and also various turbulent statistics. We find reasonable agreement with the few experiments that are available. Webb29 juli 2024 · The swirling secondary flow in curved pipes is studied in three-space dimensions using a weakly compressible Smoothed Particle Hydrodynamics (WCSPH) …
Webb14 feb. 2001 · Large-eddy simulations are performed to investigate turbulent flows through 90° pipe bends that feature unsteady flow separation, unstable shear layers, and an …
Webb9 feb. 2005 · Large-eddy simulations are performed to investigate turbulent flows through 90° pipe bends that feature unsteady flow separation, unstable shear layers, and an oscillation of the Dean vortices. Single bends with curvature radii of one- and three-pipe diameters are considered at the Reynolds number range 5000–27 000. The … key line phoneWebb9 feb. 2005 · Large-eddy simulations are performed to investigate turbulent flows through 90° pipe bends that feature unsteady flow separation, unstable shear layers, … islamic relief bangladesh tenderWebb1 jan. 2015 · The structural vibration guide vanes Large Eddy Simulation (LES) model is adopted to solve for time varying pressure and velocity fields Keywords 90° Piping elbow Guide vane Large eddy simulation Fluid–structure interaction Fluid-borne noise Nomenclature c speed of sound cp constant pressure specific heat h pipe thickness hv … keyline plasticsWebb19 sep. 2016 · The swirl-switching phenomenon, a specific structural phenomenon occurring in turbulent curved pipe flows, which has interesting fundamental as well as … key line of enquiry examplesWebb1 aug. 2015 · Turbulent flow through 90° pipe bends, for four different curvatures, has been investigated using large eddy simulations. In particular, the origin of the so … islamic quotes of the quranWebb9 feb. 2005 · Large-eddy simulations are performed to investigate turbulent flows through 90° pipe bends that feature unsteady flow separation, unstable shear layers, and an oscillation of the Dean vortices. Single bends with curvature radii of one- and three-pipe diameters are considered at the Reynolds number range 5000–27 000. keyline park gate southamptonWebb1 dec. 2024 · Particle-laden turbulent flow under saturated electrostatic field in 90-degree bend pipe at Re b = 58000 is investigated using one-way coupled Large Eddy … key line of thinking