Results 51 to 60 of about 1,374,010 (208)
NORi: An ML‐Augmented Ocean Boundary Layer Parameterization
Journal of Advances in Modeling Earth Systems, Volume 18, Issue 9, September 2026.Abstract NORi is a machine learning (ML) parameterization of ocean boundary layer (BL) turbulence that is physics‐based and augmented with neural networks. NORi stands for neural ordinary differential equations Richardson number (Ri) closure. The physical parameterization is controlled by a Richardson number‐dependent diffusivity and viscosity.
Xin Kai Lee +6 more
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An alternative reconstruction for WENO schemes with adaptive order
CoRR, 2021 We propose an alternative reconstruction for weighted essentially non-oscillatory schemes with adaptive order (WENO-AO) for solving hyperbolic conservation laws. The alternative reconstruction has a more concise form than the original WENO-AO reconstruction. Moreover, it is a strictly convex combination of polynomials with unequal degrees.
openaire +2 more sources
Engineering Reports, Volume 8, Issue 8, August 2026.Numerical and analytical modeling of annular flow reveals the hydraulic performance of sustainable drilling muds formulated from Congolese kaolinitic clay, okra mucilage, and plant ashes. Yield stress enhances cuttings transport, while shear‐thinning behavior reduces pressure losses and pumping energy.
Stanislas Ulrich Berry Moukila
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Applied SciencesIn numerical simulations, achieving high accuracy without significantly increasing computational cost is often a challenge. To address this issue, this paper proposes an improved finite volume Weighted Essentially Non-Oscillatory (WENO) scheme for ...
Hao Wang +4 more
doaj +1 more source
Third Order Reconstruction of the KP Scheme for Model of River Tinnelva [PDF]
Modeling, Identification and Control, 2017 The Saint-Venant equation/Shallow Water Equation is used to simulate flow of river, flow of liquid in an open channel, tsunami etc. The Kurganov-Petrova (KP) scheme which was developed based on the local speed of discontinuity propagation, can be used to
Susantha Dissanayake +2 more
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Journal of Advances in Modeling Earth Systems, Volume 18, Issue 8, August 2026.Abstract Quantifying interactions between distinct water bodies is critical yet challenging for understanding ocean and estuarine dynamics. We introduce the coincidence index (CI), defined as the product of two arbitrary tracers (a $a$, b $b$), to diagnose where two water masses coexist and mix.
Xiangyu Li +2 more
wiley +1 more source
Simple smoothness indicator WENO-Z scheme for hyperbolic conservation laws [PDF]
, 2019 The advantage of WENO-JS5 scheme [ J. Comput. Phys. 1996] over the WENO-LOC scheme [J. Comput. Phys.1994] is that the WENO-LOC nonlinear weights do not achieve the desired order of convergence in smooth monotone regions and at critical points.
Rathan, Samala +2 more
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Three-level order-adaptive weighted essentially non-oscillatory schemes
Results in Applied Mathematics, 2021 Classical fifth-order weighted essentially non-oscillatory (WENO) schemes are based on reconstructions from three consecutive second-order polynomials.
A. Arun Govind Neelan +2 more
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The Finite Volume WENO with Lax–Wendroff Scheme for Nonlinear System of Euler Equations
Mathematics, 2018 We develop a Lax–Wendroff scheme on time discretization procedure for finite volume weighted essentially non-oscillatory schemes, which is used to simulate hyperbolic conservation law.
Haoyu Dong, Changna Lu, Hongwei Yang
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A fourth-order entropy condition scheme for systems of hyperbolic conservation laws
Engineering Applications of Computational Fluid Mechanics, 2021 Based on the analysis of the entropy condition scheme formulation, the accuracy order comes from initial value interpolation and flux reconstruction.
Tong Zhou, Haitao Dong
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