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Latest News Releases
Updates every hour. Last Updated: 19-Dec-2025 18:11 ET (19-Dec-2025 23:11 GMT/UTC)
SwRI, UTSA selected by NASA to test electrolyzer technology aboard parabolic flight
Southwest Research InstituteGrant and Award Announcement
Para2Mesh: A dual diffusion framework for moving mesh adaptation
Tsinghua University PressPeer-Reviewed Publication
Moving mesh adaptation provides optimal resource allocation to computational fluid dynamics for the capture of different key physical features, i.e., high-resolution flow field solutions on low-resolution meshes. Although many moving mesh methods are available, they require artificial experience as well as computation of a posteriori information about the flow field, which poses a significant challenge for practical applications. Para2Mesh uses a double-diffusion framework to accomplish accurate flow field reconstruction through iterative denoising to provide flow field features as supervised information for fast and reliable mesh movement, thus enabling adaptive mesh prediction from design parameters.
- Journal
- Chinese Journal of Aeronautics
Bio-inspired grooves delay airplane wing stalls: Nature’s solution to safer flight
Tsinghua University PressPeer-Reviewed Publication
Aircraft safety faces a critical challenge: “stall,” where wings lose lift at high angles, risking crashes. Researchers from the Civil Aviation University of China have developed a bio-inspired solution—microscopic herringbone grooves mimicking bird feathers—that delays stalls by 28.57%. This passive, low-cost technology reduces flow separation on wings, outperforming traditional methods while minimizing drag.
- Journal
- Chinese Journal of Aeronautics
Optimal disturbances and competitive growth patterns in hypersonic blunt-wedge flow
Tsinghua University PressPeer-Reviewed Publication
A new study published in Chinese Journal of Aeronautics reveals critical insights into hypersonic boundary layer instabilities. Using resolvent analysis, parabolized stability equations and direct numerical simulation, researchers investigated disturbance growth on a blunt-tip wedge at Mach 5.9. The study identifies two competing wave patterns: Pattern A (slow amplification in the entropy layer) and Pattern B (rapid transient growth in the boundary layer). Key findings highlight the impact of nose radius, wall cooling, and acoustic wave receptivity, offering new control strategies for nonmodal instabilities. This work advances understanding of hypersonic flow stability with practical implications for aerospace design.
- Journal
- Chinese Journal of Aeronautics
Accelerating CFD simulation: A new adaptive IMEX temporal discretization method
Tsinghua University PressComputational Fluid Dynamics (CFD) is a pivotal tool in modern engineering and scientific research. As simulation scale increases, computational acceleration for CFD have become a prominent focus. The implicit-explicit (IMEX) method partitions spatial regions to apply implicit or explicit methods, maintaining numerical stability while enhancing computational efficiency. Numerical results demonstrate that IMEX methods achieve efficiency improvements exceeding an order of magnitude compared to classical methods. In the future, coupling IMEX methods with GPU architectures will achieve greater computational speedups in extreme-scale simulations.
- Journal
- Chinese Journal of Aeronautics