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Oscillating flows in complex geometries - Francesco Fornarelli

Francesco Fornarelli Un libro che puoi leggere e scaricare da noi

PREZZO: GRATIS
FORMATO: PDF EPUB MOBI DOC
DATA: 12/02/2014
DIMENSIONE: 10,24
ISBN: 9788868840396
LINGUAGGIO: ITALIANO
AUTORE: Francesco Fornarelli

Descrizione:

...d. These configurations, as primary complex geometries in this study, are examined by means of statistical analysis to unfold the evolution of turbulence characteristics from a straight pipe ... Three-dimensional streaming flow in confined geometries ... ... . Large-eddy simulation (LES) of wall-bounded flows is limited to moderate Reynolds number flows due to the high computational cost required to resolve the near wall eddies. LES can be extended to high Reynolds number flows by using wall-layer models which bypass the near-wall region and model its effect on the outer region. Related Grants: Panel History: Summary on Grant Application Form: Most practical engineering flows are turbulent and unsteady or oscillatory. However, the vast majority of numerical predic ... Oscillating flows in complex geometries | Francesco ... ... . Related Grants: Panel History: Summary on Grant Application Form: Most practical engineering flows are turbulent and unsteady or oscillatory. However, the vast majority of numerical predictions for flow and heat transfer in electronics, where the flow domain is congested are treated as steady. Analytical solution of dispersion in rapidly oscillating flows becomes infeasible in complex geometries. Simulation over long durations can be prohibitively expensive when there is a wide separation between the oscillation and dispersion time scales. Here, we present a methodology based on an implicit envelope‐tracking scheme coupled with telescopic projections. A test problem, with a known ... large scale complex geometries, including non-steady motion and often under turbulent conditions. The aim of this paper is to demonstrate by simple experiments some of the challenges that are faced when rheological properties are to be implemented into modelling of such flows. In this study experiments have been A brief description of the general features of oscillating flow is given in section 5.3.Various investigators such as Mair [46], Crawford [58], Daniels and Yoshihara [52], Maull [56], Album [51], Eggers and Hermach [61], Bestall and Turner [62], and Hunt [48], etc., observed oscillating flows on axially symmetric bodies at zero and non-zero angles of attack. A Brinkman penalization method for compressible flows in complex geometries Article in Journal of Computational Physics 227(2):946-966 · December 2007 with 246 Reads How we measure 'reads' Simulation of viscoelastic flows in complex geometries at high elasticities Florian Habla 1, Johannes Hasslberger 1, Laura J. Dietsche 2 and Olaf Hinrichsen 1. 1 Catalysis Research Center and Chemistry Department, Lichtenbergstraße 4, D-85748 Garching b. Nanofluid Flow in Complex Geometries—A Review Article in Journal of Nanofluids 8(5):893-916 · October 2018 with 94 Reads How we measure 'reads' Oscillating flows is a novel separation method to aid in air revitalization in self- supporting environments that are important to NASA's advanced life support. This purely mechanical process can assist in the removal of carbon dioxide, fine particles, and trace contaminants from the air. Separation can be achieved as oscillating flows markedly increase the mass transfer of a dilute species in ... Three-dimensional streaming flow in confined geometries - Volume 777 - Bhargav Rallabandi, Alvaro Marin, Massimiliano Rossi, Christian J. Kähler, Sascha Hilgenfeldt A new implicit fictitious domain method for the simulation of flow in ...