Acoustic and soliton propagation using fully-discrete energy preserving partially implicit scheme in homogeneous and heterogeneous mediums

J Jaglan, V Maurya, A Singh, VS Yadav… - … & Mathematics with …, 2024 - Elsevier
This study presents an energy preserving partially implicit scheme for the simulation of wave
propagation in homogeneous and heterogeneous mediums. Despite its implicit nature, the …

Novel hybrid compact schemes for stream function–velocity formulation of the incompressible Navier–Stokes equations

VS Yadav, V Maurya, PK Maurya, MK Rajpoot - Physics of Fluids, 2023 - pubs.aip.org
In this paper, we have developed new hybrid compact schemes for the simulation of stream
function–velocity formulation of a two-dimensional incompressible Navier–Stokes equation …

New optimized implicit-explicit Runge-Kutta methods with applications to the hyperbolic conservation laws

PK Maurya, VS Yadav, B Mahato, N Ganta… - Journal of …, 2021 - Elsevier
This paper discusses a new class of optimized implicit-explicit Runge-Kutta methods for the
numerical solution of the dispersive and non-dispersive hyperbolic systems. Optimized …

The performance of filtered leapfrog schemes in benchmark simulations

PD Williams, JM Straka… - Quarterly Journal of the …, 2022 - Wiley Online Library
The stabilisation of the leapfrog time‐stepping scheme provided by the Robert–Asselin filter
has enabled decades of atmospheric and oceanic research and weather and climate …

[PDF][PDF] 基于解析四维集合变分的全球正压谱模式初始场优化研究

郑超旭, 李威, 韩桂军, 曹力戈, 梁康壮, 王天傲… - 海洋学报, 2023 - hyxbocean.cn
解析四维集合变分数据同化方法是一种无需伴随的, 完全继承四维变分非线性处理能力的,“流
依赖” 的非顺序数据同化方法. 本研究基于解析四维集合变分, 开展全球正压谱模式初始场优化 …

New hybrid compact schemes for structured irregular meshes using Birkhoff polynomial basis

PK Maurya, MK Rajpoot, VS Yadav, A Singh - Journal of Computational …, 2020 - Elsevier
This paper discusses the formulation of a class of hybrid compact schemes for structured
irregular meshes. First, we derived three-and five-point compact schemes with required …

Initial field optimization of Global Barotropic Model based on Analytical Four Dimensional Ensemble Variational

Z Chaoxu, L Wei, H Guijun, C Lige, L Kangzhuang… - 海洋学报, 2023 - hyxbocean.cn
Abstract The Analytical Four Dimensional Ensemble Variational is a “flow-dependent” and
non-sequential data assimilation method without adjoint models and completely inherits the …