Browsing by Subject "Turbulent flows"
Now showing items 1-5 of 5
A heuristic argument for the sole use of numerical stabilization with no physical LES modeling in the simulation of incompressible turbulent flows (2009-07-14)
Open AccessWe aim at giving support to the idea that no physical Large Eddy Simulation (LES) model should be used in the simulation of turbulent flows. It is heuristically shown that the rate of transfer of subgrid kinetic energy ...
An experimental investigation of the effect of fractal grids on the near and full field structure of a turbulent round jet (Universitat Politècnica de Catalunya, 2016-04-07)
Restricted access - author's decisionThis project involves the experimental analysis of a jet with different nozzle configurations. The first configuration being a classic round nozzle and the second is modified adding a "fractal grid" by modifying the flow ...
(Universitat Politècnica de Catalunya, 2016-02-25)
Open AccessMost of the flows on our day basis are turbulent (airplane, cars, heat exchangers) so know its behavior has raised the interest of the industry. Compared to laminar flows turbulent ones have a higher skin-friction drag due ...
Restricted access - publisher's policySince direct numerical simulations cannot be computed at high Reynolds numbers, a dynamically less complex formulation is sought. In the quest for such a formulation, we consider regularizations of the convective term ...
Turbulent flow in a differentially heated cavity: direct numérical simulation and regularization modeling (2010)
Restricted access - publisher's policyWe consider regularizations of the convective term that preserve symmetry and conservation properties exactly. This yields a novel class of regularizations that restrain the convective production of small scales in an ...