Results 121 to 130 of about 195,120 (280)

The Combined Effects of Variable Viscosity and Thermal Conductivity of An Unsteady Casson Fluid Flow Along a Vertical Porous Channel With Convective Cooling Walls, Using the Bivariate Spectral Local Linearization Method

Mathematical Methods in the Applied Sciences, EarlyView.
ABSTRACT This study examines the combined impact of different thermal conductivity and viscosity on unsteady non‐Newtonian Casson fluid flow of incompressible, electrical conductivity in a porous vertical channel with convective cooling walls, uniform magnetic field, and constant pressure gradient.
A. S. Adeyemo, Precious Sibanda, S. P. Goqo   +2 more
wiley   +1 more source

Data‐Driven Detection of Internal Erosion Initiation in Gap‐Graded Soils: Combining Particle‐Scale CFD‐DEM Simulation With 3D Convolutional Autoencoder

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT Internal erosion in gap‐graded soils poses significant risks to water‐retaining structures such as earth dams. However, its underlying mechanisms at the particle scale remain poorly understood. This study couples the discrete element method (DEM) with computational fluid dynamics (CFD) to simulate internal erosion in gap‐graded soil assemblies
Jie Qi, Negin Yousefpour, Guillermo A. Narsilio, Mehdi Pouragha   +3 more
wiley   +1 more source

Partial regularity of solutions to the Navier-Stokes equations [PDF]

, 1976
Vladimir Scheffer
openalex   +1 more source

Unified Permeability Modeling for Transitional Darcy/Non‐Darcy Flow Based on 3D Pore‐Level Numerical Flow Tests

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT This study presents a unified representation of the seepage characteristics of virtual soil, such as the transition zone from low‐velocity Darcy flow to high‐velocity non‐Darcy flow, by conducting 3D pore‐level fluid simulations. The process of defining a virtual test region as a representative volume element (RVE) and then assessing the ...
Reika Nomura, Ryota Itto, Shinsuke Takase, Shuji Moriguchi, Kenjiro Terada   +4 more
wiley   +1 more source

Existence of Variational Principles for the Navier-Stokes Equation [PDF]

, 1972
Bruce A. Finlayson
openalex   +1 more source

A Probabilistic Cut Finite Element Method With Random Field Generator and Bayesian Model Calibration for Flow Through Rough Cracks

International Journal for Numerical and Analytical Methods in Geomechanics, EarlyView.
ABSTRACT A new model for the simulation of fluid flow through rough cracks is presented. The model combines a probabilistic cut finite element method (PCutFEM) to capture the unfitted boundary condition at the fluid interface, with a stochastic random field generator to represent the crack asperities.
Brubeck Lee Freeman, Evan John Ricketts, Diane Gardner, Anthony Jefferson, Peter John Cleall, Pierre Kerfriden   +5 more
wiley   +1 more source

Instationary Navier-Stokes equations and parabolic systems [PDF]

, 1977
Wolf von Wahl
openalex   +1 more source

A Critical Review of Pole Clustering Techniques: Common Pitfalls, Extension to MIMO and New Enhanced Variant of the Cuckoo Search Algorithm

Optimal Control Applications and Methods, EarlyView.
Enhanced Cuckoo Search for Model Order Reduction ABSTRACT This article presents a critical review of classical and modern pole clustering techniques for model order reduction in high‐order systems. It highlights key limitations and common pitfalls encountered in traditional approaches, especially when extended to Multi‐Input Multi‐Output (MIMO) systems.
Kamel Ben Slimane, Zied Tmar, Mongi Besbes   +2 more
wiley   +1 more source

ASYMPTOTIC EQUIVALENCE OF THE NAVIER-STOKES AND NONLINEAR BOLTZMANN EQUATIONS

, 1964
H. Grad
openalex   +2 more sources

Visualization of Hemispherical Post‐Detonation Fireball Internal Structures

Propellants, Explosives, Pyrotechnics, EarlyView.
ABSTRACT Hemispherical charges are initiated above a transparent plate in a half‐plane configuration, allowing optical access to the internal regions of the luminous fireball. High‐speed visualization enables characterization of the internal luminous structure, showing clearly the bright shell and dark core regions.
Samuel N. Brunkow, Matthew G. Bielawski, Allen L. Kuhl, Dave P. Grote, John B. Bell, Nick Glumac   +5 more
wiley   +1 more source