The generation of meshes and the Adaptive Mesh Refinement (AMR) have presented considerable challenges in computational fluid dynamics. This paper presents a strategy for automatic adaptive Cartesian grid generation within a multicore parallel framework based on the Dynamic Partition Weight (DPW) method. It integrates the unique features of cells generated before and after each AMR and predicts the number of iterations for each cell. The partition weight of the cell is set in proportion to the number of iterations, and the grid-parallel repartition that considers the partition weight is performed before executing computations that require geometric information retrieval. A number of configurations, including a wing-body, are selected for analysis to evaluate the strategy’s effectiveness. The results indicate that the computational load imbalance is alleviated during the Cartesian grid generation process, significantly reducing time consumption, with an improvement rate exceeding 50 %. For the wing-body case, a 1.37-billion-cell grid is generated in 44.49 s by using 1024 cores with the DPW strategy, demonstrating DPW’s efficiency and strong parallel scalability for Cartesian mesh generation.

For shipborne helicopters, one of the most dangerous operations at sea is the taking-off and landing operation on a ship. The complex airflow interaction on the surface of the ship is one of the main causes of this problem. Starting from the analysis of flow features of a single ship air wake, the vortex structures of the carrier and non-carrier ships as well as the flow features of the ship-helicopter coupled flowfield are summarized. Based on this, we then review the research development and main studies in the numerical simulation of ship surface air flow, which ranges from inviscid to viscous flow simulations, and from steady to unsteady numerical simulations. For the numerical study of ship-helicopter coupled flow, according to the numerical model and coupling method, the development process abroad is introduced, from the simplified actuator disk model to the complete helicopter model, from one-way coupling to two-way coupling; meanwhile the relevant work in China is also introduced. The content discussed in this study outlines the main methods for numerical simulations of the ship surface air flow and the ship-helo coupled flow, which can provide a reference for studies of the ship-helo coupled flowfield and the aircraft-ship adaptability.