Numerical Methods for Fluid Dynamics

A special issue of Mathematics (ISSN 2227-7390). This special issue belongs to the section "E: Applied Mathematics".

Deadline for manuscript submissions: 31 August 2026 | Viewed by 477

Special Issue Editor


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Guest Editor
1. Institute of Mechanics, Chinese Academy of Sciences, Beijing, China
2. School of Engineering Science, University of Chinese Academy of Sciences, Beijing, China
Interests: computational fluid dynamics; multi-physics coupling

Special Issue Information

Dear Colleagues,

The field of fluid dynamics is at a pivotal moment, driven by the development of exascale computing, advanced algorithms, and data-driven methodologies. While the Navier–Stokes equations remain the cornerstone, solving them for increasingly complex, multi-scale, and multi-physics problems demands a new generation of numerical techniques. This Special Issue aims to capture the state of the art and chart the future course of computational fluid dynamics (CFD), highlighting innovations that enhance accuracy, efficiency, and applicability across science and engineering.

We seek contributions that not only demonstrate theoretical advances but also provide practical pathways for solving grand-challenge problems across engineering and scientific disciplines. This Issue will highlight research spanning the complete spectrum from fundamental algorithm development to cutting-edge applications.

Topics of interest include, but are not limited to, the following:

  • Novel discretization schemes and solver technologies;
  • Advanced turbulence modeling strategies;
  • Innovative approaches for multiphase flows and fluid-structure interaction;
  • Algorithms for high performance computing;
  • Applications in areas such as aerospace engineering, fluid machinery, energy sector, and ocean engineering.

This Special Issue will serve as a comprehensive reference for researchers developing the new generation of CFD capabilities, emphasizing robust mathematical foundations while addressing practical implementation challenges. We particularly encourage submissions that demonstrate cross-disciplinary approaches and establish new benchmarks for accuracy and computational efficiency.

Dr. Shang-Gui Cai
Guest Editor

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Keywords

  • numerical algorithms
  • computational fluid dynamics
  • fluid–structure interaction
  • turbulence modeling
  • multiphase flows

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Published Papers (1 paper)

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Research

31 pages, 1631 KB  
Article
A Conservative Runge–Kutta Discontinuous Galerkin ConRKDG Method for Inviscid Compressible Flows in One-Dimensional Computational Fluid Dynamics Simulations
by Thien Binh Nguyen and Nguyen Minh Hieu Pham
Mathematics 2026, 14(10), 1590; https://doi.org/10.3390/math14101590 - 8 May 2026
Viewed by 155
Abstract
This article proposes a novel conservative ConRKDG method for one-dimensional hyperbolic conservation laws with applications in computational fluid dynamics simulations. A DG local solution is reconstructed over each element based on the sub-cell solution averages with a newly proposed set of shape functions. [...] Read more.
This article proposes a novel conservative ConRKDG method for one-dimensional hyperbolic conservation laws with applications in computational fluid dynamics simulations. A DG local solution is reconstructed over each element based on the sub-cell solution averages with a newly proposed set of shape functions. In this virtue, the conservation property of the problem is naturally imposed for the numerical DG solution. In addition, the availability of finite-volume sub-cell solution averages without any DG-to-FV transformation or vice versa facilitates a direct and robust technique for detecting troubled elements, in which the unlimited DG local solution is deemed unstable. A new WENO-type smoothness measurement based on sub-cell solution averages is introduced to assess whether a DG local solution is admissible or unstable, thereby determining whether an element is good or troubled. For the latter case, a secondary finite-volume WENO method is invoked in an a posteriori phase to recalculate the sub-cell averages to sustain numerical stability by essentially suppressing non-physical spurious oscillations in the vicinity of shocks or discontinuities at troubled elements. The performance of the ConRKDG method with different secondary finite-volume WENO methods is compared for both problems with smooth solutions and those with shocks and discontinuities. Full article
(This article belongs to the Special Issue Numerical Methods for Fluid Dynamics)
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