Results 31 to 40 of about 593,106 (293)

An assessment of compact schemes combined with compact filters for a numerical simulation of compressible flow

open access: yesNihon Kikai Gakkai ronbunshu, 2014
Characteristics of compact schemes combined with compact filters for compressible flows are numerically investigated on the Sod's problem in this study.
Yuki WAKAMATSU, Hiroaki WATANABE
doaj   +1 more source

Shock-Capturing and Front-Tracking Methods for Granular Avalanches [PDF]

open access: yesJournal of Computational Physics, 2002
Shock formations are observed in granular avalanches when supercritical flow merges into a region of subcritical flow. In this paper we employ a shock-capturing numerical scheme for the one-dimensional Savage-Hutter theory of granular flow to describe this phenomenon. A Lagrangian moving mesh scheme applied to the non-conservative form of the equations
Tai, Y. C.   +3 more
openaire   +2 more sources

A New ϵ-Adaptive Algorithm for Improving Weighted Compact Nonlinear Scheme with Applications

open access: yesAerospace, 2022
To improve the resolution and accuracy of the high-order weighted compact nonlinear scheme (WCNS), a new ϵ-adaptive algorithm based on local smoothness indicators is proposed.
Ziquan Huang   +3 more
doaj   +1 more source

A non-hydrostatic model for water waves in nearshore region

open access: yesShui kexue jinzhan, 2015
Based on uniform grid,a depth integrated non-hydrostatic model for coastal water flow is presented. The numerical implementation of the model is split into hydrostatic step and non-hydrostatic step.
FANG Kezhao   +3 more
doaj   +1 more source

A Review of Convective Schemes Used for Detonation Simulations in OpenFOAM After a Decade of Development

open access: yesAxioms
Detonation phenomena in reactive flow systems continue to pose significant challenges for accurate simulation, particularly in 3D validation against experiments and achieving community standardization for schemes.
Luis Gutiérrez Marcantoni   +1 more
doaj   +1 more source

Preserving stationary discontinuities in two-layer shallow water equations with a novel well-balanced approach

open access: yesJournal of Hydroinformatics, 2023
This paper proposes a novel energy-balanced numerical scheme for the two-layer shallow water equations (2LSWEs) that accurately captures internal hydraulic jumps without introducing spurious oscillations. The proposed scheme overcomes the problem of post-
Majid Akbari, Bahareh Pirzadeh
doaj   +1 more source

A hybrid finite volume method and smoothed particle hydrodynamics approach for efficient and accurate blast simulations

open access: yesFrontiers in Physics
Modeling strong shock waves in fluids remains a persistent challenge in computational physics. Essential to research efforts in industry and defense, numerous methods have been devised to improve the accuracy and efficiency of shock simulations. A novel,
Conner Myers   +3 more
doaj   +1 more source

Large-eddy simulation of low-frequency unsteadiness in a turbulent shock-induced separation bubble

open access: yes, 2009
The need for better understanding of the low-frequency unsteadiness observed in shock wave/turbulent boundary layer interactions has been driving research in this area for several decades.
Touber, Emile, Sandham, Neil D.
core   +1 more source

Forecasting the Dialysis Burden in Japan: Validation‐Based Projections of Prevalence and Incidence Through 2050

open access: yesTherapeutic Apheresis and Dialysis, EarlyView.
ABSTRACT Background Japan has one of the highest dialysis prevalence rates worldwide and a shrinking, aging population. Whether dialysis burden has entered a sustained post‐peak phase or whether recent declines partly reflect pandemic‐related disruptions remains uncertain.
Hatice Şahin   +2 more
wiley   +1 more source

Structural insights and therapeutic targets in Acinetobacter baumannii capsule biosynthesis

open access: yesFEBS Letters, EarlyView.
Hypervirulent KL49 A. baumannii's capsular polysaccharide contains the nonulosonic acid 8‐epi‐Leg5,7Ac2, synthesized by epimerization via ElaA, ElaB, and ElaC. Crystal structures of ElaA, ElaB, and ElaC reveal their role in CMP‐Leg5,7Ac2 synthesis and regioselective C8 epimerization.
Woo Cheol Lee   +7 more
wiley   +1 more source

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