Results 21 to 30 of about 27,975 (305)

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

Large-eddy simulation of the compressible flow past a wavy cylinder

open access: yes, 2010
Numerical investigation of the compressible flow past a wavy cylinder was carried out using large-eddy simulation for a free-stream Mach number M? = 0.75 and a Reynolds number based on the mean diameter Re = 2 × 105.
Lu, Xi-Yun   +5 more
core   +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

A Compressible Formulation of the One-Fluid Model for Two-Phase Flows

open access: yesFluids
In this paper, we introduce a compressible formulation for dealing with 2D/3D compressible interfacial flows. It integrates a monolithic solver to achieve robust velocity–pressure coupling, ensuring precision and stability across diverse fluid flow ...
Simon El Ouafa   +5 more
doaj   +1 more source

Numerical Analysis and Characterization of Surface Pressure Fluctuations of High-Speed Trains Using Wavenumber–Frequency Analysis

open access: yesApplied Sciences, 2019
The high-speed train interior noise induced by the exterior flow field is one of the critical issues for product developers to consider during design.
Songjune Lee   +3 more
doaj   +1 more source

Entropy splitting for high-order numerical simulation of compressible turbulence [PDF]

open access: yes, 2002
A stable high-order numerical scheme for direct numerical simulation (DNS) of shock-free compressible turbulence is presented. The method is applicable to general geometries. It contains no upwinding, artificial dissipation, or filtering.
Li, Q.   +5 more
core   +1 more source

Development of High-Fidelity Numerical Methodology for Prediction of Vehicle Interior Noise Due to External Flow Disturbances Using LES and Vibroacoustic Techniques

open access: yesApplied Sciences, 2022
A pleasant and quiet cabin in driving a car is one of the most critical factors affecting a customer’s choice in a market. As the traditional noise sources such as power trains become less, the relative contribution of aerodynamic noise to the interior ...
Songjune Lee   +2 more
doaj   +1 more source

Subsonic irrotational flow of compressible fluid in axially-symmetric channels [PDF]

open access: yes, 1975
summary:On the basis of a detailed analysis of irrotational compressible flow a model problem describing subsonic stream fields is ...
Římánek, Josef, Feistauer, Miloslav
core   +1 more source

Numerical solution of inviscid and viscous flow around the profile

open access: yesEPJ Web of Conferences, 2015
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’s k-ω model ...
Slouka Martin   +2 more
doaj   +1 more source

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