Results 21 to 30 of about 5,246,849 (293)

Viscous and Gravitational Fingering in Multiphase Compositional and Compressible Flow [PDF]

open access: yes, 2016
Viscous and gravitational fingering refer to flow instabilities in porous media that are triggered by adverse mobility or density ratios, respectively.
J. Moortgat
semanticscholar   +1 more source

Compressible-flow geometric-porosity modeling and spacecraft parachute computation with isogeometric discretization

open access: yesComputational Mechanics, 2018
One of the challenges in computational fluid–structure interaction (FSI) analysis of spacecraft parachutes is the “geometric porosity,” a design feature created by the hundreds of gaps and slits that the flow goes through.
Taro Kanai   +4 more
semanticscholar   +1 more source

A cut-cell finite volume - finite element coupling approach for fluid-structure interaction in compressible flow [PDF]

open access: yesJournal of Computational Physics, 2015
We present a loosely coupled approach for the solution of fluid-structure interaction problems between a compressible flow and a deformable structure. The method is based on staggered Dirichlet-Neumann partitioning.
V. Pasquariello   +7 more
semanticscholar   +1 more source

Numerical solution of inviscid and viscous laminar and turbulent flow around the airfoil

open access: yesEPJ Web of Conferences, 2016
This work deals with the 2D numerical solution of inviscid compressible flow and viscous compressible laminar and turbulent flow around the profile. In a case of turbulent flow algebraic Baldwin-Lomax model is used and compared with Wilcox k-omega model.
Slouka Martin, Kozel Karel
doaj   +1 more source

Comparative Study of Lattice Boltzmann Models for Complex Fractal Geometry

open access: yesEnergies, 2021
A standard model, one of the lattice Boltzmann models for incompressible flow, is broadly applied in mesoscopic fluid with obvious compressible error.
Dong Zhang, Enzhi Wang, Xiaoli Liu
doaj   +1 more source

Adaptive algebraic multiscale solver for compressible flow in heterogeneous porous media [PDF]

open access: yesJournal of Computational Physics, 2015
This paper presents the development of an Adaptive Algebraic Multiscale Solver for Compressible flow (C-AMS) in heterogeneous porous media. Similar to the recently developed AMS for incompressible (linear) flows (Wang et al., 2014) 19, C-AMS operates by ...
M. Tene, Yixuan Wang, H. Hajibeygi
semanticscholar   +1 more source

Comparison of compressible and incompressible numerical methods in simulation of a cavitating jet through a poppet valve

open access: yesEngineering Applications of Computational Fluid Mechanics, 2019
The regime of compressible flow generally refers to the super/subsonic case. However, several remarkable cases with low Mach number could not be appropriately described with the incompressible method.
Cong Yuan, Jinchun Song, Minghe Liu
doaj   +1 more source

Analytic solutions of a two-fluid hydrodynamic model

open access: yesMathematical Modelling and Analysis, 2021
We investigate a one dimensional flow described with the non-compressible coupled Euler and non-compressible Navier-Stokes equations in the Cartesian coordinate system.
Imre Ferenc Barna, László Mátyás
doaj   +1 more source

A Compressible Turbulence Model for Pressure—Strain

open access: yesFluids, 2022
This work focuses on the performance and validation of compressible turbulence models for the pressure-strain correlation. Considering the Launder Reece and Rodi (LRR) incompressible model for the pressure-strain correlation, Adumitroaie et al., Huang et
Hechmi Khlifi, Adnen Bourehla
doaj   +1 more source

The simulation of the flow through the porous media and diffusible barriers

open access: yesEPJ Web of Conferences, 2018
Here we work with the RANS equations describing the non-stationary viscous compressible fluid flow. We focus on the numerical simulation of the flow through the porous media, characterized by the loss of momentum. Further we simulate the flow through the
Kyncl Martin, Pelant Jaroslav
doaj   +1 more source

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