{"title":"Analysis of Oil Flow Based on von Kármán Vortex Streets","authors":"V. A. Naletov, M. B. Glebov, L. V. Ravichev","doi":"10.1134/S0040579523060167","DOIUrl":null,"url":null,"abstract":"<p>In this paper, the local vortex flows for oil transported through main pipelines are analyzed on the basis of von Kármán vortex streets. The vortex flow analysis is based on computational fluid dynamics modeling using the Ansys Fluent software. The simulation of local vortex flows is based on the shear-stress transport (SST) model, representing a combination of the <i>k</i>–ε and <i>k</i>–ω turbulence models. It is proven that, for specified oil-flow parameters and characteristics, it is possible to generate local vortex flows in the center of a pipeline. The estimation of hydraulic drag in the zone of the von Kármán vortex streets indicates that it can be decreased. On the other hand, the analysis of overall pressure losses evidences that form drag losses are predominant in the case of flow around vortex-generating devices. Therefore, it becomes necessary to search for other methods to induce local vortex flows or overcome drag losses by using the resources of multifunctional units in oil-transport processes.</p>","PeriodicalId":798,"journal":{"name":"Theoretical Foundations of Chemical Engineering","volume":null,"pages":null},"PeriodicalIF":0.7000,"publicationDate":"2024-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Theoretical Foundations of Chemical Engineering","FirstCategoryId":"5","ListUrlMain":"https://link.springer.com/article/10.1134/S0040579523060167","RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
引用次数: 0
Abstract
In this paper, the local vortex flows for oil transported through main pipelines are analyzed on the basis of von Kármán vortex streets. The vortex flow analysis is based on computational fluid dynamics modeling using the Ansys Fluent software. The simulation of local vortex flows is based on the shear-stress transport (SST) model, representing a combination of the k–ε and k–ω turbulence models. It is proven that, for specified oil-flow parameters and characteristics, it is possible to generate local vortex flows in the center of a pipeline. The estimation of hydraulic drag in the zone of the von Kármán vortex streets indicates that it can be decreased. On the other hand, the analysis of overall pressure losses evidences that form drag losses are predominant in the case of flow around vortex-generating devices. Therefore, it becomes necessary to search for other methods to induce local vortex flows or overcome drag losses by using the resources of multifunctional units in oil-transport processes.
期刊介绍:
Theoretical Foundations of Chemical Engineering is a comprehensive journal covering all aspects of theoretical and applied research in chemical engineering, including transport phenomena; surface phenomena; processes of mixture separation; theory and methods of chemical reactor design; combined processes and multifunctional reactors; hydromechanic, thermal, diffusion, and chemical processes and apparatus, membrane processes and reactors; biotechnology; dispersed systems; nanotechnologies; process intensification; information modeling and analysis; energy- and resource-saving processes; environmentally clean processes and technologies.