Applications in Computational Fluid Dynamics

A special issue of Fluids (ISSN 2311-5521). This special issue belongs to the section "Mathematical and Computational Fluid Mechanics".

Deadline for manuscript submissions: closed (20 May 2023) | Viewed by 1783

Special Issue Editors


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Guest Editor
Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, VR-II, Hjardarhaga 6, 107 Reykjavik, Iceland
Interests: thermodynamics; heat transfer; fluid mechanics; geothermal; mathematical modeling

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Guest Editor
The Faculty of Industrial Engineering, Mechanical Engineering and Computer Science, University of Iceland, 102 Reykjavík, Iceland
Interests: fluid mechanics; heat transfer; numerical methods

Special Issue Information

Dear Colleagues,

Computational Fluid Dynamics (CFD), as opposed to experiments, has the advantages of being relatively inexpensive and flexible to make adjustments in experimental setup. This makes CFD an ever more appealing tool in engineering application and design. The drawback of CFD is the potential lack of reliability, making expensive experimental testing necessary to verify results. Many CFD tools have been researched, developed, and tested in recent decades, making their results ever more reliable. In this Special Issue, CFD in various applications will be utilized to further expand the foundation of using CFD as a tool in engineering application and design. Those engineering applications may range from large scale slush flow barrier design to microfluidic devices and beyond.   

Prof. Dr. Halldór Pálsson
Dr. Ásdís Helgadóttir
Guest Editors

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Published Papers (1 paper)

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Research

16 pages, 4940 KiB  
Article
Three-Dimensional Simulations of Viscous Incompressible Fluid Flows on Grids with Unmatched Grid Interfaces
by Andrey Kozelkov, Andrey Kurkin, Aleksey Korotkov, Sergey Lashkin and Elmira Lashkina
Fluids 2022, 7(11), 346; https://doi.org/10.3390/fluids7110346 - 9 Nov 2022
Cited by 1 | Viewed by 1342
Abstract
The paper describes a numerical method that considers specific computational fluid dynamics (CFD) aspects of viscous incompressible flow simulations in the vicinity of interfaces between unmatched fragments of unstructured grids. The method is based on the general grid interface (GGI) principle, which involves [...] Read more.
The paper describes a numerical method that considers specific computational fluid dynamics (CFD) aspects of viscous incompressible flow simulations in the vicinity of interfaces between unmatched fragments of unstructured grids. The method is based on the general grid interface (GGI) principle, which involves conservative flux interpolation and does not require original grid modification at unmatched interfaces. A method is presented which combines adjacent unmatched fragments of an unstructured grid into a single domain by means of virtual interfaces considering connections between adjacent cells through virtual faces. The performance of the method is illustrated by the finite-volume discretization of the transport equation in the region of matched interfaces and its modification for the case of unmatched interfaces. The efficiency of the proposed method is demonstrated by three-dimensional CFD simulations with grid models composed of unmatched unstructured grid fragments. The simulation results are compared with equivalent simulations on matched grids. The influence of unmatched interfaces on the convergence rate and accuracy of the solution is assessed. Full article
(This article belongs to the Special Issue Applications in Computational Fluid Dynamics)
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