Recent Developments in Mathematical Fluid Dynamics

A special issue of Axioms (ISSN 2075-1680). This special issue belongs to the section "Mathematical Physics".

Deadline for manuscript submissions: 28 February 2026 | Viewed by 678

Special Issue Editor


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Guest Editor
Department of Mathematics and Statistics, Texas Tech University, Lubbock, TX, USA
Interests: computational fluid dynamics; finite element methods; multi-phase flows; optimal control; nonlocal operators; numerical analysis

Special Issue Information

Dear Colleagues,

This Special Issue of Axioms aims to present and promote recent advances in the mathematical foundations and modern analytical, numerical, and computational methods for the study of fluid dynamics. As fluid flows play a central role in many physical, biological, and industrial processes, the rigorous understanding and modeling of their behavior remain a cornerstone of applied mathematics.

The focus of this Special Issue is on the development of axiomatic frameworks, new theoretical insights, and advanced numerical techniques that involve the mathematical modeling of fluids, whether incompressible, compressible, multiphase, non-Newtonian, or turbulent. Topics of interest include, but are not limited to, the following: the analysis of partial differential equations governing fluid motion; existence and uniqueness results; stability and control of flow systems; numerical schemes for multi-physics and multiscale phenomena; and applications to real-world systems.

This Special Issue also encourages contributions that bridge mathematical fluid dynamics with areas such as optimization, uncertainty quantification, machine learning, and high-performance computing. By assembling contributions from leading researchers and emerging scholars, this Special Issue will offer a snapshot of current trends and challenges, while highlighting open questions and directions for future work.

We look forward to your valuable contributions.

Dr. Andrea Chierici
Guest Editor

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Keywords

  • mathematical fluid dynamics
  • partial differential equations
  • multiphase flows
  • non-Newtonian fluids
  • numerical methods
  • axiomatic modeling
  • stability and control in fluid dynamics
  • multiscale simulations
  • high-performance computing
  • machine learning in fluid dynamics

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Published Papers (2 papers)

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Research

41 pages, 18402 KB  
Article
Trapped Modes Along Periodic Structures Submerged in a Two-Layer Fluid with Free Surface and a Background Steady Flow
by Gonçalo Dias and Bruno Pereira
Axioms 2025, 14(11), 846; https://doi.org/10.3390/axioms14110846 - 18 Nov 2025
Viewed by 155
Abstract
This study examines the trapping of linear water waves by an endless structure of stationary, three-dimensional periodic obstacles within a two-layer fluid system. The setup features a lower layer of either limited or unlimited depth, overlaid by an upper layer of finite thickness [...] Read more.
This study examines the trapping of linear water waves by an endless structure of stationary, three-dimensional periodic obstacles within a two-layer fluid system. The setup features a lower layer of either limited or unlimited depth, overlaid by an upper layer of finite thickness bounded by a free surface, with each layer exhibiting its own constant background speed relative to the fixed reference frame. For real roots to emerge in the dispersion relation, an additional stability condition on the layer velocities is necessary. By selecting adequate choices for the background flow, a non-linear eigenvalue problem is derived from the variational formulation; its reasonable approximation yields a geometric criterion that guarantees the presence of trapped modes (subject to the aforementioned stability bounds). The selection of the eigenvalue is influenced by velocity owing to the presence of an interface and free surface. Due to inherent symmetries, the overall analysis can be confined to the positive quadrant of the velocity domain. Illustrations are provided for various obstacle setups that produce trapped modes in diverse ways. Full article
(This article belongs to the Special Issue Recent Developments in Mathematical Fluid Dynamics)
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21 pages, 1805 KB  
Article
Assessment of Compliance with Integral Conservation Principles in Chemically Reactive Flows Using rhoCentralRfFoam 
by Marcelo Frias, Luis Gutiérrez Marcantoni and Sergio Elaskar
Axioms 2025, 14(11), 782; https://doi.org/10.3390/axioms14110782 - 25 Oct 2025
Viewed by 359
Abstract
Reliable simulations of any flow require proper preservation of the fundamental principles governing the mechanics of its motion, whether in differential or integral form. When these principles are solved in differential form, discretization schemes introduce errors by transforming the continuous physical domain into [...] Read more.
Reliable simulations of any flow require proper preservation of the fundamental principles governing the mechanics of its motion, whether in differential or integral form. When these principles are solved in differential form, discretization schemes introduce errors by transforming the continuous physical domain into a discrete representation that only approximates it. This paper analyzes the numerical performance of the solver for supersonic chemically active flows, rhoCentralRfFoam, using integral conservation principles of mass, momentum, energy, and chemical species as a validation tool in a classical test case with a highly refined mesh under nonlinear pre-established reference conditions. The analysis is conducted on this specific test case; however, the methodology presented here can be applied to any problem under study. It may serve as an a posteriori verification tool or be integrated into the solver’s workflow, enabling automatic verification of conservation at each time step. The resulting deviations are evaluated, and it is observed that the numerical errors remain below 0.25%, even in cases with a high degree of nonlinearity. These results provide preliminary validation of the solver’s accuracy, as well as its ability to capture physically consistent solutions using only information generated internally by the solver for validation. This represents a significant advantage over validation methods that require external comparison with reference solutions, numerical benchmarks, or exact solutions. Full article
(This article belongs to the Special Issue Recent Developments in Mathematical Fluid Dynamics)
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