Results 21 to 30 of about 85,463 (302)

Sound radiated from low Mach number turbulent boundary layer flows(Turbulent boundary layer on a smooth plate and over a small forward facing step)

open access: yesJournal of Fluid Science and Technology, 2021
High-resolution numerical simulation has been performed to study aeroacoustic noise radiated from a turbulent boundary layer at freestream Mach number Ma = 0.3, which develops on a smooth flat plate and over a small forward-facing step.
Shiko MORIYAMA   +2 more
doaj   +1 more source

Artificial compressibility method for strongly anisothermal low Mach number flows [PDF]

open access: yesPhysical Review E, 2021
Artificial compressibility methods aim to reduce the stiffness of the compressible Navier-Stokes equations by artificially decreasing the velocity of acoustic waves in the fluid. This approach has originally been developed as an alternative to the incompressible Navier-Stokes equations as this avoids the resolution of a Poisson equation.
Dorian Dupuy   +2 more
openaire   +2 more sources

Skin-Friction-Based Identification of the Critical Lines in a Transonic, High Reynolds Number Flow via Temperature-Sensitive Paint

open access: yesSensors, 2021
In this contribution, three methodologies based on temperature-sensitive paint (TSP) data were further developed and applied for the optical determination of the critical locations of flow separation and reattachment in compressible, high Reynolds number
Marco Costantini   +3 more
doaj   +1 more source

Analytical solution of axi-symmetrical lattice Boltzmann model for cylindrical Couette flows [PDF]

open access: yes, 2012
Analytical solution for the axi-symmetrical lattice Boltzmann model is obtained for the low-Mach number cylindrical Couette flows. In the hydrodynamic limit, the present solution is in excellent agreement with the result of the Navier-Stokes equation ...
An, Hongyan   +3 more
core   +1 more source

A New Numerical algorithm for two-phase flows drift-flux model with staggered grid in porous media

open access: yesESAIM: Proceedings and Surveys, 2017
FLICA4 is a 3D compressible code dedicated to reactor core analysis. FLICA4 solves for two-phase flows in porous media using a compressible drift-flux model [2].
Mekkas Anouar   +2 more
doaj   +1 more source

Verification and Validation of a Low-Mach-Number Large-Eddy Simulation Code against Manufactured Solutions and Experimental Results

open access: yesEnergies, 2018
To investigate turbulent reacting flows, a low-Mach number large-eddy simulation (LES) code called ‘LESsCoal’ has been developed in our group. This code employs the Germano dynamic sub-grid scale (SGS) model and the steady flamelet/progress variable ...
Yingzu Liu   +4 more
doaj   +1 more source

MAESTRO: An Adaptive Low Mach Number Hydrodynamics Algorithm for Stellar Flows [PDF]

open access: yes, 2010
Many astrophysical phenomena are highly subsonic, requiring specialized numerical methods suitable for long-time integration. In a series of earlier papers we described the development of MAESTRO, a low Mach number stellar hydrodynamics code that can be ...
A. Nonaka   +21 more
core   +1 more source

Coupling Between Alfvén Wave and Kelvin–Helmholtz Waves in the Low Latitude Boundary Layer

open access: yesFrontiers in Astronomy and Space Sciences, 2022
The Kelvin–Helmholtz (KH) instability of magnetohydrodynamic surface waves at the low latitude boundary layer is examined using both an eigenfrequency analysis and a time-dependent wave simulation.
E.-H. Kim, J. R. Johnson, K. Nykyri
doaj   +1 more source

Study of capabilities of hybrid scheme for advection terms approximation in mathematical models of compressible flows

open access: yesТруды Института системного программирования РАН, 2018
The hybrid method for approximation of advective terms is proposed in order to resolve flows in the wide Mach numbers region. This hybrid method is based on the Kurganov-Tadmor (KT) scheme and projection method PISO (Pressure Implicit with Splitting ...
M. V. Kraposhin
doaj   +1 more source

A Preconditioned Method for Rotating Flows at Arbitrary Mach Number

open access: yesModelling and Simulation in Engineering, 2011
An improved preconditioning is proposed for viscous flow computations in rotating and nonrotating frames at arbitrary Mach numbers. The key to the current method is the use of both free stream Mach number and rotating Mach number to construct a ...
Chunhua Sheng
doaj   +1 more source

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