Results 1 to 10 of about 775 (116)

On the approximation of dam-break problems using a fuzzified HR-TVD scheme [PDF]

open access: yesMethodsX, 2023
The construction of the proposed second-order accurate scheme is based on the Monotonic Upstream Schemes for Conservation Laws (MUSCL) strategy. Using some strong notions from fuzzy logic, like fuzzy modifiers and fuzzy inference systems, the work offers
Ruchika Lochab, Vivek Kumar
doaj   +2 more sources

Magnetizing Characteristics of Bridge Type Superconducting Fault Current Limiter (SFCL) with Simultaneous Quench Using Flux-Coupling

open access: yesEnergies, 2020
A bridge type superconducting fault current limiter (SFCL) with simultaneous quench using two high-temperature superconducting (HTSC) elements and two coils was fabricated to analyze the fault current limiting characteristics.
Seok-Cheol Ko, Tae-Hee Han, Sung-Hun Lim
doaj   +3 more sources

Development of intelligent hybrid controller for torque ripple minimization in electric drive system with adaptive flux estimator: An experimental case study. [PDF]

open access: yesPLoS ONE
In order to ensure optimal performance of permanent magnet synchronous motors (PMSMs) across many technical applications, it is imperative to minimize torque fluctuations and reduce total harmonic distortion (THD) in stator currents.
Surya Kant   +6 more
doaj   +2 more sources

Assessment of numerical schemes for solving the advection–diffusion equation on unstructured grids: case study of the Guaíba River, Brazil [PDF]

open access: yesNonlinear Processes in Geophysics, 2013
In this work, a first-order upwind and a high-order flux-limiter schemes for solving the advection–diffusion equation on unstructured grids were evaluated.
F. F. Pereira   +4 more
doaj   +1 more source

Effect of edge plasma density on hot spot in LHCD plasma in EAST

open access: yesNuclear Materials and Energy, 2021
Hot spot is a serious challenge limiting long pulse operation with LHCD (lower hybrid current drive) in tokamak. In order to mitigate the hot spot in guard limiter and improve LHCD capability, effect of edge plasma density on inducing hot spot and ...
B.J. Ding   +22 more
doaj   +1 more source

Technical Note: A generic law-of-the-minimum flux limiter for simulating substrate limitation in biogeochemical models [PDF]

open access: yesBiogeosciences, 2016
We present a generic flux limiter to account for mass limitations from an arbitrary number of substrates in a biogeochemical reaction network. The flux limiter is based on the observation that substrate (e.g., nitrogen, phosphorus) limitation in ...
J. Y. Tang, W. J. Riley
doaj   +1 more source

Effect of continuously flowing liquid Li limiter on particle and heat fluxes during H-mode discharges in EAST

open access: yesNuclear Materials and Energy, 2022
Particle and heat fluxes were successfully controlled by using a continuously flowing liquid Li (FLiLi) limiter in the H-mode discharges with high plasma heating power in the Experimental Advanced Superconducting Tokamak device.
G.Z. Zuo   +16 more
doaj   +1 more source

Implementation of Flux Limiters in Simulation of External Aerodynamic Problems on Unstructured Meshes

open access: yesFluids, 2023
The study is dedicated to the peculiarities of implementing the flux limiter of the flow quantity gradient when solving 3D aerodynamic problems using the system of Navier–Stokes equations on unstructured meshes.
A. V. Struchkov   +4 more
doaj   +1 more source

Comparison of Errors Caused by Flux Limiters on the Numerical Solution of Advection-Diffusion Problem

open access: yesNigerian Journal of Technological Development, 2022
Flux limiters are widely used in numerical simulations to prevent spurious oscillation in the flow with strong property gradients. However, applying flux limiter on flow without strong property gradient such as advection-diffusion flow can cause errors.
Adek Tasri
doaj   +2 more sources

Non-linear simulations of the TCV Scrape-Off Layer

open access: yesNuclear Materials and Energy, 2017
To investigate the mechanisms leading to the heat deposition onto the first wall in the Scrape-Off Layer (SOL), we perform dedicated numerical non-linear simulations of the SOL plasma dynamics of a TCV discharge using the GBS code. The simulated parallel
F. Nespoli   +6 more
doaj   +1 more source

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