Aerodynamic Simulation of Helicopter Based on Polyhedron Nested Grid Technology
Source abstract
Abstract
In this paper, a computational fluid dynamics (CFD) simulation method based on the polyhedral nested grid is developed. By comparing the simulation and test results of the hovering flow field of the Caradonna–Tung rotor, the forward flight flow field of the AH-1G rotor, the interference flow field of the Robin rotor/fuselage, and the hovering and forward flight flow field of a coaxial rotor, it is proven that the method proposed in this paper can achieve high calculation accuracy under various working conditions. The dual time-stepping method is used for the transient simulation, and the Spalart–Allmaras (S-A) turbulence model, which is widely used in aviation, is adopted in the simulation.
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Research context
OpenAlex topics: Computational Fluid Dynamics and Aerodynamics · Fluid Dynamics and Turbulent Flows · Advanced Numerical Methods in Computational Mathematics
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
School of Aeronautic Science and Engineering, Beihang University, Xueyuan Road No.37, Beijing 100191, China
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