Results 21 to 30 of about 4,666,365 (388)

Convolutional neural network modeling and response surface analysis of compressible flow at sonic and supersonic Mach numbers

open access: yesAlexandria Engineering Journal, 2023
Ribs as passive control in suddenly expanded flow is exciting to enhance the base pressure around nozzle exit. Furthermore, predictions of compressible flow characteristics in duct expansion using machine learning are very rare.
Ambareen Khan   +5 more
doaj   +1 more source

Multifractal Clustering in Compressible Flows [PDF]

open access: yesPhysical Review Letters, 2004
A quantitative relationship is found between the multifractal properties of the asymptotic mass distribution in a random dissipative system and the long-time fluctuations of the local stretching rates of the dynamics. It captures analytically the fine aspects of the strongly intermittent clustering of dynamical trajectories.
Péter Horvai   +6 more
openaire   +4 more sources

rp‐adaptation for compressible flows [PDF]

open access: yesInternational Journal for Numerical Methods in Engineering, 2020
AbstractWe present a novel rp‐adaptation strategy for high‐fidelity simulations of compressible inviscid flows with shocks. The mesh resolution in regions of flow discontinuities is increased by using a variational optimizer to r‐adapt the mesh and cluster degrees of freedom there.
Julian Marcon   +4 more
openaire   +7 more sources

Multidimensional transonic shock waves and free boundary problems

open access: yesBulletin of Mathematical Sciences, 2022
We are concerned with free boundary problems arising from the analysis of multidimensional transonic shock waves for the Euler equations in compressible fluid dynamics.
Gui-Qiang G. Chen, Mikhail Feldman
doaj   +1 more source

Vibrations of Nonlinear Elastic Structure Excited by Compressible Flow

open access: yesApplied Sciences, 2021
This study deals with the development of an accurate, efficient and robust method for the numerical solution of the interaction of compressible flow and nonlinear dynamic elasticity.
Monika Balázsová   +3 more
doaj   +1 more source

A dilating vortex particle method for compressible flow [PDF]

open access: yes, 2002
Vortex methods have become useful tools for the computation of incompressible fluid flow. In this work, a vortex particle method for the simulation of unsteady two-dimensional compressible flow is developed.
Colonius, Tim   +2 more
core   +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

On steady compressible flows with compact vorticity; the compressible Stuart vortex [PDF]

open access: yes, 2000
Numerical and analytical solutions to the steady compressible Euler equations corresponding to a compressible analogue of the linear Stuart vortex array are presented.
Meiron, D. I.   +2 more
core   +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

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

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