Coupled CFD Problems with Moving Boundaries and Interfaces

A special issue of Mathematical and Computational Applications (ISSN 2297-8747).

Deadline for manuscript submissions: closed (31 August 2019) | Viewed by 2935

Special Issue Editors


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Guest Editor
Department of Environmental and Civil Engineering (DECA), Universitat Politècnica de Catalunya, 08034 Barcelona, Spain
Interests: FEM; CFD; fluid-structure interaction; multiphase flow; fuel cells
Special Issues, Collections and Topics in MDPI journals

E-Mail Website
Guest Editor
Department of Civil and Environmental Engineering, Polytechnic University of Catalonia (UPC), c. Gran Capitan s/n, Ed. B0, Campus Nort, UPC, 08034 Barcelona, Spain
Interests: computational solid mechanics; HPC; machine learning
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The development of powerful techniques for solving coupled problems involving flows with moving boundaries and interfaces has been an important research area in Computational Fluid Dynamics over past two decades. This has been motivated by the fact that a wide range of engineering problems involve moving boundaries. Particularly, this is the case for the CFD problems that contain free surfaces and/or various phases (fluid–gas, fluid–solid, gas–solid). Despite the fact that the main classes of approaches for modeling the evolution of boundaries/interfaces are established (Level Set, Volume-of-Fluid, Lagrangian interface tracking), their application to many problems of industrial interest remains challenging. Often, their application to “real-life” cases requires additional “ingredients” in order to ensure their proper functionality. 

The aim of this Special Issue is to collect papers where coupled problems of industrial interest characterized by the presence of moving boundaries are solved. This issue also aims at highlighting and discussing the limitations of the existing methodologies when applied to real-life problems.

Topics of interest include (but are not limited to):

(i) problems involving free surface flows
(ii) multi-material mechanical problems (multiphase, fluid–structure interaction)
(iii) thermo-mechanical problems
(iv) electro-mechanical problems

Dr. Pavel Ryzhakov
Assoc. Prof. Dr. Riccardo Rossi
Guest Editors

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Published Papers (1 paper)

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16 pages, 487 KiB  
Article
Added-Mass Based Efficient Fluid–Structure Interaction Model for Dynamics of Axially Moving Panels with Thermal Expansion
by Nikolay Banichuk, Svetlana Ivanova, Evgeny Makeev, Juha Jeronen and Tero Tuovinen
Math. Comput. Appl. 2020, 25(1), 9; https://doi.org/10.3390/mca25010009 - 22 Jan 2020
Cited by 1 | Viewed by 2576
Abstract
The paper considers the analysis of a traveling panel, submerged in axially flowing fluid. In order to accurately model the dynamics and stability of a lightweight moving material, the interaction between the material and the surrounding air must be taken into account. The [...] Read more.
The paper considers the analysis of a traveling panel, submerged in axially flowing fluid. In order to accurately model the dynamics and stability of a lightweight moving material, the interaction between the material and the surrounding air must be taken into account. The lightweight material leads to the inertial contribution of the surrounding air to the acceleration of the panel becoming significant. This formulation is novel and the case complements our previous studies on the field. The approach described in this paper allows for an efficient semi-analytical solution, where the reaction pressure of the fluid flow is analytically represented by an added-mass model in terms of the panel displacement. Then, the panel displacement, accounting also for the fluid–structure interaction, is analyzed with the help of the weak form of the governing partial differential equation, using a Galerkin method. In the first part of this paper, we represent the traveling panel by a single partial differential equation in weak form, using an added-mass approximation of the exact fluid reaction. In the second part, we apply a Galerkin method for dynamic stability analysis of the panel, and present an analytical investigation of static stability loss (divergence, buckling) based on the added-mass model. Full article
(This article belongs to the Special Issue Coupled CFD Problems with Moving Boundaries and Interfaces)
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