Results 31 to 40 of about 895,705 (294)

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 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

Emerging experimental and computational methods for studying redox‐regulated structural transitions

open access: yesFEBS Letters, EarlyView.
Redox reactions can reshape proteins and alter how they behave in cells, with important consequences for health and disease. This review explores emerging experimental and computational approaches for discovering these redox‐sensitive protein switches, revealing their structural effects, and predicting their behavior, opening new opportunities to ...
Tasneem Rass   +2 more
wiley   +1 more source

Functional comparison of EncB and EncC cargo proteins in iron storage within the Myxococcus xanthus encapsulin

open access: yesFEBS Letters, EarlyView.
Encapsulins are protein nanocompartments that play an important role in iron storage. In the Myxococcus xanthus encapsulin system, two cargo proteins called EncB and EncC contribute to iron mineralization. Here, we show that EncB and EncC generate iron‐containing minerals with distinct chemical compositions, suggesting that the composition of stored ...
Harry B. McDowell   +2 more
wiley   +1 more source

The Shewanella oneidensis Fic enzyme SoFic targets the switch‐I region of EF‐Tu for AMPylation

open access: yesFEBS Letters, EarlyView.
Fic enzymes mediate diverse post‐translational modifications across all domains of life, including AMPylation. Prokaryotic EF‐Tu can be AMPylated and deAMPylated by the conserved Fic enzyme SoFic. Structural and biochemical approaches were used to characterize the effect of AMPylation on EF‐Tu, SoFic's enzymatic activities, and the enzyme‐target ...
Svenja Runge   +6 more
wiley   +1 more source

GW-RAR-PINN: a novel physics-informed neural network framework for dam-break flow simulation

open access: yesEngineering Applications of Computational Fluid Mechanics
Physics-informed neural networks (PINNs) have shown potential for modeling open-channel flows; however, their performance deteriorates in dam-break problems due to strong nonlinearities and flow discontinuities.
Wenhao Yan, Zhenduo Zhu, Zhaowei Liu
doaj   +1 more source

On the Nonlinearity of Modern Shock-Capturing Schemes [PDF]

open access: yes, 1986
The development is reviewed of shock capturing methods, paying special attention to the increasing nonlinearity in the design of numerical schemes. The nature is studies of this nonlinearity and its relation to upwind differencing is examined.
Ami Harten, Harten, A.
core   +1 more source

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