Results 81 to 90 of about 4,064 (207)
Energetics of the Upper‐Ocean Under Sea Ice: Frictional Dissipation Versus Baroclinic Production
Abstract In polar regions, the presence of sea ice is known to reduce the ocean's eddy kinetic energy (EKE) by enhancing frictional dissipation at the surface. Here, using a coupled ocean—sea ice model, we discuss a mechanism that can instead increase EKE generation under sea ice and, in our simulations, compensates surface dissipation by 69% to 30 ...
Mukund Gupta +2 more
wiley +1 more source
A new weighting method for improving the WENO-Z scheme
The calculation of the weight of each substencil is very important for a weighted essentially nonoscillatory (WENO) scheme to obtain high-order accuracy in smooth regions and keep the essentially nonoscillatory property near discontinuities.
申义庆 +7 more
core +1 more source
Modelling shock-induced instabilities, transition and turbulent mixing using high-order methods [PDF]
High-order numerical methods have been considered and implemented in order to assess their applicability in a range of complex ows centering on shockinduced turbulent mixing.
Mosedale, Andrew Daniel
core +2 more sources
A Data Library of Liquid Clouds Modelled With a Large Eddy Simulation Framework
Clouds from four global liquid cloud testbed regions are modelled using atmospheric large eddy simulations coupled to a detailed scheme for cloud microphysics, offering data suitable for examining interactions among cloud, aerosol and turbulence in warm, boundary‐layer clouds and for developing parameterizations for coarser‐scale models.
Colleen M. Kaul +9 more
wiley +1 more source
In [8], the authors have designed a new fifth-order WENO finite-difference scheme (named WENO-eta) by introducing a new local smoothness indicator which is defined based on the Lagrangian interpolation polynomials and has a more succinct form compared ...
Fan P +2 more
core +1 more source
为提高有限差分格式的分辨率,利用傅里叶分析对WENO格式进行色散及耗散优化,并给出优化的线性权重.用优化后的WENO格式与保单调格式(MP)进行加权混合,得到新的加权混合WENO格式(H-WENO).通过一维激波管问题、Shu-Osher问题及二维双Mach反射问题及R-T不稳定性问题对格式进行数值测试.结果显示,新格式具有强健的激波捕捉能力和对小尺度波结构的高分辨率 ...
郭元, 田奇, 李新亮, 梁贤
core +2 more sources
In this paper, the detached eddy simulation (DES) method is used to calculate the aerodynamic characteristics of NACA0015 airfoil by combining the Riemann approximate solution HLLC (Harten–Lax–van Leer Contact) with the high-order weighted essentially ...
Yan Qi, Bowen Zhong, Song Zou
doaj +1 more source
On the Stability Barrier of Hermite Type Discretizations of Advection Equations
ABSTRACT We establish a stability barrier for a class of high‐order Hermite‐type discretization of 1D advection equations underlying the hybrid‐variable (HV) and active flux (AF) methods. These methods approximate both cell averages and nodal solutions and evolve them in time simultaneously.
Xianyi Zeng
wiley +1 more source
The Finite Volume WENO with Lax–Wendroff Scheme for Nonlinear System of Euler Equations
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
doaj +1 more source
High-order weno-θ6 finite volume method for two-dimensional compressible euler equations
A high-order finite-volume WENO-θ6 method is proposed for two-dimensional compressible Euler equations. The method employs θ-adaptive weighting to combine fifth-order upwind and sixth-order central reconstructions based on local smoothness indicators ...
Nguyen Minh Hieu Pham, Thien Binh Nguyen
doaj +1 more source

