Semtex：具有广义牛顿流变性的不可压缩流的求解方法的发展和应用

IF 7.2 2区物理与天体物理 Q1 COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS

Computer Physics Communications Pub Date : 2025-06-05 DOI:10.1016/j.cpc.2025.109694

H.M. Blackburn , M. Rudman , J. Singh

{"title":"Semtex：具有广义牛顿流变性的不可压缩流的求解方法的发展和应用","authors":"H.M. Blackburn , M. Rudman , J. Singh","doi":"10.1016/j.cpc.2025.109694","DOIUrl":null,"url":null,"abstract":"<div><div>The methodology for simulation of incompressible flows with generalized Newtonian viscosity models, for example shear-thinning rheologies, within the <em>Semtex</em> framework of open-source spectral-element/Fourier flow solvers [1,2] is outlined. Direction is given regarding the rheology models employed and how appropriate parameters are derived and supplied to the solver. Exponential spatial convergence of solutions is demonstrated for both Cartesian and cylindrical geometries. Other example applications deal with DNS of turbulent flows in pipes. We use <em>Semtex</em> to highlight the central importance of adequate rheology characterization for accurate simulation of turbulent flows of generalized Newtonian fluids.</div></div>","PeriodicalId":285,"journal":{"name":"Computer Physics Communications","volume":"315 ","pages":"Article 109694"},"PeriodicalIF":7.2000,"publicationDate":"2025-06-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Semtex: Development and application of the solver methodology for incompressible flows with generalized Newtonian rheologies\",\"authors\":\"H.M. Blackburn , M. Rudman , J. Singh\",\"doi\":\"10.1016/j.cpc.2025.109694\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>The methodology for simulation of incompressible flows with generalized Newtonian viscosity models, for example shear-thinning rheologies, within the <em>Semtex</em> framework of open-source spectral-element/Fourier flow solvers [1,2] is outlined. Direction is given regarding the rheology models employed and how appropriate parameters are derived and supplied to the solver. Exponential spatial convergence of solutions is demonstrated for both Cartesian and cylindrical geometries. Other example applications deal with DNS of turbulent flows in pipes. We use <em>Semtex</em> to highlight the central importance of adequate rheology characterization for accurate simulation of turbulent flows of generalized Newtonian fluids.</div></div>\",\"PeriodicalId\":285,\"journal\":{\"name\":\"Computer Physics Communications\",\"volume\":\"315 \",\"pages\":\"Article 109694\"},\"PeriodicalIF\":7.2000,\"publicationDate\":\"2025-06-05\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Computer Physics Communications\",\"FirstCategoryId\":\"101\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S0010465525001961\",\"RegionNum\":2,\"RegionCategory\":\"物理与天体物理\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Computer Physics Communications","FirstCategoryId":"101","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S0010465525001961","RegionNum":2,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"COMPUTER SCIENCE, INTERDISCIPLINARY APPLICATIONS","Score":null,"Total":0}

引用次数: 0

摘要

本文概述了在Semtex框架的开源谱元/傅立叶流动求解器[1,2]中，用广义牛顿粘度模型模拟不可压缩流动的方法，例如剪切变薄流变。给出了关于所采用的流变模型以及如何推导和提供适当参数给求解器的指导。指数空间收敛的解决方案证明了笛卡尔和圆柱几何。其他示例应用程序处理管道中湍流的DNS。我们使用Semtex来强调充分的流变特性的中心重要性，以准确模拟广义牛顿流体的湍流。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

查看原文本刊更多论文

Semtex: Development and application of the solver methodology for incompressible flows with generalized Newtonian rheologies

The methodology for simulation of incompressible flows with generalized Newtonian viscosity models, for example shear-thinning rheologies, within the Semtex framework of open-source spectral-element/Fourier flow solvers [1,2] is outlined. Direction is given regarding the rheology models employed and how appropriate parameters are derived and supplied to the solver. Exponential spatial convergence of solutions is demonstrated for both Cartesian and cylindrical geometries. Other example applications deal with DNS of turbulent flows in pipes. We use Semtex to highlight the central importance of adequate rheology characterization for accurate simulation of turbulent flows of generalized Newtonian fluids.

求助全文

通过发布文献求助，成功后即可免费获取论文全文。去求助

来源期刊

Computer Physics Communications 物理-计算机：跨学科应用

CiteScore

12.10

自引率

3.20%

发文量

287

审稿时长

5.3 months

期刊介绍： The focus of CPC is on contemporary computational methods and techniques and their implementation, the effectiveness of which will normally be evidenced by the author(s) within the context of a substantive problem in physics. Within this setting CPC publishes two types of paper. Computer Programs in Physics (CPiP) These papers describe significant computer programs to be archived in the CPC Program Library which is held in the Mendeley Data repository. The submitted software must be covered by an approved open source licence. Papers and associated computer programs that address a problem of contemporary interest in physics that cannot be solved by current software are particularly encouraged. Computational Physics Papers (CP) These are research papers in, but are not limited to, the following themes across computational physics and related disciplines. mathematical and numerical methods and algorithms; computational models including those associated with the design, control and analysis of experiments; and algebraic computation. Each will normally include software implementation and performance details. The software implementation should, ideally, be available via GitHub, Zenodo or an institutional repository.In addition, research papers on the impact of advanced computer architecture and special purpose computers on computing in the physical sciences and software topics related to, and of importance in, the physical sciences may be considered.