In this paper, a class of compact higher-order gas-kinetic schemes (GKS) with spectral-like resolution has been developed. Based on a time-dependent gas evolution model at a cell interface, the finite volume GKS updates both cell averaged conservative flow variables and their slopes through the fluxes and flow variables at the cell interface. As a result, the compact 6th- and 8th-order linear and nonlinear reconstructions can be obtained on a stencil of a second-order scheme. The time evolution model in GKS unifies the nonlinear and linear reconstructions through a relaxation process from non-equilibrium state to equilibrium one. To achieve a 4th-order time accuracy, based on the multi-stage multi-derivative (MSMD) formulation, the current higher-order GKS is time-stepping scheme with only one middle stage instead of 3 middle stages in the conventional 4th-order Runge-Kutta method. The time step used in the compact GKS can take a relative large CFL number(CFL≥0.3). Many numerical tests have been used to validate the compact scheme in the capturing of solutions from strong shocks to aero-acoustic waves in both inviscid and viscous computations. The 6th- and 8th-order compact GKS provide a state-of-art high-order numerical schemes with robustness, accuracy, and efficiency for the compressible flow simulations. Read more.
Featured article: Compact higher-order gas-kinetic schemes with spectral-like resolution for compressible flow simulations
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On behalf of the editorial board, we are honored to announce the launch of a new journal, Advances in Aerodynamics (AIA), and we are very pleased to share with you our vision for the development of this journal. AIA is an international peer-reviewed open access journal which publishes high quality papers with originality, novelty, and significant contributions to the progress in aerodynamics. The journal will provide authors with an open and fair platform to promote their research and identify themselves in the aerodynamics community. Read more.
Aims and scope
Advances in Aerodynamics (AIA) is aimed to report the scientific and technological advances in aerodynamics from the aspects of academic research, industrial development and engineering applications, and to provide a platform for ideas exchange and discussion in this fast-changing field. The journal welcomes reviews and regular papers of novel studies on aerodynamic science and engineering. The topics include but are not limited to:
- Theoretical and Computational Aerodynamics
▪ Equilibrium and non-equilibrium flow
▪ Numerical method and validation
▪ Turbulent flow modeling and simulation
▪ Non-equilibrium and multi-physics flow simulation - Aerospace Engineering Aerodynamics
▪ Aircraft research
▪ Aerodynamic analysis and design
▪ Propulsion and combustion
▪ Flow control
▪ Experimental aerodynamics - Industrial Aerodynamics
▪ Innovative aerodynamic concept & Bio-inspired design
▪ Automobile and high-speed ground vehicle
▪ Renewable energy industries
▪ Environmental pollution - Multi-disciplinary Related Aerodynamics
▪ Aeroacoustics
▪ Aeroelasticity
▪ Hydrodynamics
▪ Thermomechanics
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Advances in Aerodynamics is affiliated with the Chinese Aerodynamics Research Society, which is supported by China Aerodynamics Research and Development Center.
Chinese Aerodynamics Research Society (CARS) is a national, academic and non-profit social organization voluntarily formed by the academics practitioners and institutions engaged in aerodynamic research. It is also a constituent of China Association for Science and Technology.
Dedicated to promoting academic exchanges and scientific popularization in the field of aerodynamics in China, CARS has published several professional journals and organized activities such as Chinese Conference of Aerodynamics Annual Meeting, National Aeroelastic Academic Exchange Meeting, National Conference on Computational Fluid Dynamics.
- ISSN: 2524-6992 (electronic)
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