Results 31 to 40 of about 593,105 (299)

Shock capturing for discontinuous galerkin methods

open access: yes, 2023
Aquesta tesi doctoral proposa formulacions de Galerkin Discontinu (DG) d’alt ordre per la captura de shocks, obtenint alhora solucions altament precises per problemes de flux compressible. En les últimes dècades, la investigació en els mètodes de DG ha estat en constant creixement.
openaire   +3 more sources

The comparisons on wave breaking captured by non-hydrostatic model with or without turbulent dissipation

open access: yesFrontiers in Marine Science
The spilling and plunging breakers in surf zone are simulated by the non-hydrostatic shock-capturing model with or without turbulent dissipation/model. Geometric and dynamic breaking criteria and wave energy flux are investigated to show the differences ...
Dongbin He   +7 more
doaj   +1 more source

Numerical Modelling of Gas-Liquid Slug Flow Regime with a Conservative Two-Fluid Model Using the Shock Capturing Method [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering
An approach for simulating the initiation of slugs in horizontal pipes is proposed in this research. An analogy is established between the algorithms for solving single-phase problems with discontinuity (Riemann problems) and two-phase slug flow (having ...
Mohammad Hassan Yahyanezhad   +2 more
doaj   +1 more source

Evaluating the Capability of the Flux-Limiter Schemes in Capturing Strong Shocks and Discontinuities

open access: yesShock and Vibration, 2013
A numerical study is conducted to investigate the capability of the flux-limiter TVD schemes in capturing sharp discontinuities like shock waves. For this purpose, four classical test problems are considered such as slowly moving shock, gas Riemann ...
Iman Harimi, Ahmad Reza Pishevar
doaj   +1 more source

Numerical modeling of laboratory-scale asteroid impact based on elastoplastic flow model and CESE method

open access: yesAIP Advances, 2021
Asteroid impacts are destructive and low-probability threats to the Earth. The numerical simulation is considered an applicable analysis tool in asteroid deflection programs.
Duoxing Yang
doaj   +1 more source

An Improved Component-Wise WENO-NIP Scheme for Euler System

open access: yesMathematics, 2022
As is well known, due to the spectral decomposition of the Jacobian matrix, the WENO reconstructions in the characteristic-wise fashion (abbreviated as CH-WENO) need much higher computational cost and more complicated implementation than their ...
Ruo Li, Wei Zhong
doaj   +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

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

Shock capturing by Bernstein polynomials for scalar conservation laws [PDF]

open access: yesApplied Mathematics and Computation, 2019
A main disadvantage of many high-order methods for hyperbolic conservation laws lies in the famous Gibbs-Wilbraham phenomenon, once discontinuities appear in the solution. Due to the Gibbs-Wilbraham phenomenon, the numerical approximation will be polluted by spurious oscillations, which produce unphysical numerical solutions and might finally blow up ...
openaire   +4 more sources

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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