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Assessment of Rotor Hover Performance Using a Node-based Flow Solver
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 Title & Authors
Assessment of Rotor Hover Performance Using a Node-based Flow Solver
Jung, Mun-Seung; Kwon, Oh-Joon; Kang, Hee-Jung;
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 Abstract
A three-dimensional viscous flow solver has been developed for the prediction of the aerodynamic performance of hovering helicopter rotor blades using unstructured hybrid meshes. The flow solver utilized a vertex-centered finite-volume scheme that is based on the Roe's flux-difference splitting with an implicit Jacobi/Gauss-Seidel time integration. The eddy viscosity are estimated by the Spalart- Allmaras one-equation turbulence model. Calculations were performed at three operating conditions with varying tip Mach number and collective pitch setting for the Caradonna-Tung rotor in hover. Additional computations are made for the UH-60A rotor in hover. Reasonable agreements were obtained between the present results and the experiment in both blade loading and overall rotor performance. It was demonstrated that the present vertex-centered flow solver is an efficient and accurate tool for the assessment of rotor performance in hover.ᔌ쬀؀㘱㌮㈻Ԁ䭃䑎䷗ᜓ੯5㐰㬅K䍄乍
 Keywords
Unstructured hybrid meshes ; Vertex-centered finite-volume scheme ; Rotor performance ; Viscous flows
 Language
English
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