Results 21 to 30 of about 55,167 (191)
Partially-Averaged Navier Stokes Model for Turbulence: Implementation and Validation [PDF]
, 2005 Partially-averaged Navier Stokes (PANS) is a suite of turbulence closure models of various modeled-to-resolved scale ratios ranging from Reynolds-averaged Navier Stokes (RANS) to Navier-Stokes (direct numerical simulations).
Abdol-Hamid, Khaled S. +1 more
core +1 more source
A Mathematical Model for Two‐Phase Flow in Confined Environments: Numerical Solution and Validation
International Journal for Numerical Methods in Fluids, EarlyView.We present a numerical framework based on the Cahn‐Hilliard‐Navier‐Stokes (CHNS) model to simulate biphasic flow in confined environments. After deriving the mathematical model, we develop the weak form of the system of PDEs using a pedagogical approach to enable its implementation in FEniCS.
Giuseppe Sciumè +3 more
wiley +1 more source
International Journal for Numerical Methods in Fluids, EarlyView.A hybrid RANS‐LES turbulence model adapted for the Moving Particle Semi‐implicit method is employed to investigate a turbulent free surface flow. A method based on the cell‐linked list is proposed to speed up the nearest wall search for the turbulence model.
Fabio Kenji Motezuki +3 more
wiley +1 more source
International Journal for Numerical Methods in Fluids, EarlyView.This study investigates the impact of uncertain parameters on Navier–Stokes equations coupled with heat transfer using the Intrusive Polynomial Chaos Method (IPCM). Sensitivity equations are formulated for key input parameters, such as viscosity and thermal diffusivity, and solved numerically using the Finite Element‐Volume method.
N. Nouaime +3 more
wiley +1 more source
International Journal for Numerical Methods in Fluids, EarlyView.This study presents an efficient method to compute polymer stress‐tensor components in viscoelastic laminar jet flows using models such as Oldroyd‐B, Giesekus, PTT, and FENE. By assuming a stationary and parallel flow, the methodology significantly reduces computational cost.
Rafael de Lima Sterza +3 more
wiley +1 more source
A diagonally inverted LU implicit multigrid scheme for the 3-D Navier-Stokes equations and a two equation model of turbulence [PDF]
An LU implicit multigrid algorithm is developed to calculate 3-D compressible viscous flows. This scheme solves the full 3-D Reynolds-Averaged Navier-Stokes equation with a two-equation kappa-epsilon model of turbulence. The flow equations are integrated
Yokota, Jeffrey W.
core +1 more source
Downdraft Devices for Negative Emissions—Quantification Study and Environmental Implication
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT Methane (CH4) is a potent greenhouse gas with a global warming potential far exceeding that of CO2 over short time horizons. Its removal from the atmosphere remains challenging due to its low ambient concentration and chemical stability. This study explores downdraft energy towers (DETs) as an innovative CH4 mitigation technology that enhances
Xiaokun Yao +4 more
wiley +1 more source
INFINITY: Neural Field Modeling for Reynolds-Averaged Navier-Stokes Equations [PDF]
, 2023 Louis Serrano +4 more
openalex +1 more source
Prospects for computing airfoil aerodynamics with Reynolds averaged Navier-Stokes codes [PDF]
The Reynolds averaged Navier-Stokes equations are solved numerically for a variety of transonic airfoil configurations where viscous phenomena are important.
Bailey, H. E., Deiwert, G. S.
core +1 more source
Численное исследование аэроупругого поведения компрессорной ступени в трехмерном потоке вязкого газа [PDF]
, 2010 The partial integration method of the solution for the coupled problem of unsteady aerodynamics and elastic blades oscillations has been applied to simulate the aeroelastic behaviour of compressor stage. The three-dimensional unsteady viscous gas flow is
Гнесин, Виталий Исаевич +1 more
core