The method is based on representing the particles by force multipoles distributed over a finite volume. This method is incorporated into a spectral/ hp element code for solving the Navier鈥揝tokes equations. An
关于间断伽辽金谱元法(Discontinuous Galerkin Spectral Element Method, DGSEM) ,英文资料介绍较多,大概在2010年前后相关的论文才比较丰富。该方法集标准间断伽辽金(Discontinuous Galerkin, DG)支持非结构网格的优势和谱元法(Spectral Element Method, SEM)的低计算量下的高精度优势于一身,同时又有较为统一的模板来离...
Spectral element method Turbulence Large eddy simulation Explicit filter Modal filter 1. Introduction In large eddy simulation (LES) of turbulent flows, the motions with larger scales are directly calculated, while the effects of the small-scale motions are modeled [1]. The governing equations of ...
1.1.11 Finite element code . . . . . . . . . . . . . . . . . . . . . 27 1.2 Variational formulation and weighted residuals . . . . . . . . . . 35 1.2.1 Rayleigh-Ritz method for homogeneous Dirichlet bound- ary conditions . . . . . . . . . . . . . . . ....
Aspecialflavourofthespectral-elementmethod:SES3D,programmecodedescription ,computationofsyntheticseismograms ,long-wavelengthequivalentmodels Scope:Understandtheprinciplesofthespectralelementmethodandwhyitisurrentlymaybethemostimportantmethodforwavepropagation.
Large eddy simulation is performed in heat transfer of turbulent pipe flow with NEK5000 code based on spectral element method to study uncertainty quantification by Grid Convergence Index. The turbulent pipe flow with heat transfer is considered with Reynolds number Re = 19,000 and Prandtl number ...
The spectral accuracy is ensured by using high-order global orthogonal basis functions (Fourier, Legendre, Chebyshev first and second kind, Ultraspherical, Jacobi, Laguerre and Hermite), as opposed to finite element codes that are using low-order local basis functions. Efficiency is ensured through...
Cassagne, A., Boussuge, J.F., Puigt, G.: High-order method for a new generation of Large Eddy Simulation solver. Ph.D. thesis, PRACE (2015) Chapelier, J.B., Lodato, G.: A spectral-element dynamic model for the large-eddy simulation of turbulent flows. J. Comput. Phys. 321, ...
SBIEMLAB is intended to introduce new users to the SBIEM or to introduce researchers and students to computational earthquake dynamics. For serious simulations you should turn to an optimized Fortran implementation of the SBIEM or of the Spectral Element Method (SEM): ...
Source code:https://github.com/scipy/scipy Spectral analysis 在Signal processing (scipy.signal) 的 API 中,本文将会针对频谱分析 (spectral analysis) 的源码进行详细解读。 scipy/signal/spectral.py 首先要说明的是,我们会避轻就重的研究清楚各个算法是如何实现的,暂时忽略数据结构的识别等无关紧要的细节,直...