王定奇,屈霁云,刘雨.基于CFD 的螺旋桨拉力确定方法[J].航空发动机,2020,46(3):20-24 |
Determination Method of Propeller Thrust Based on CFD |
DOI: |
Key Words:turboprop propeller plane numerical calculation patched-grid thrust flight test |
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Abstract:Aiming at the problem of propeller thrust determination,a three-dimensional solid model was established with a certain
propeller plane as the research object,and CFD method was used for numerical calculation. The block of the complex combination of
propeller and nacelle was carried out by subarea patched-grid. On this basis,the Reynolds Mean NS (RANS) turbulence model was used to
simulate the different height,flow velocity and blade angle based on the sliding grid method. Based on the calculation results,the
characteristics of propeller plane flow field were analyzed,and the variation of propeller working characteristics with flight Ma and flight
height was summarized with the emphasis of propeller thrust. The results show that the propeller thrust decreases with the increase of flight
Ma and increases with the increase of blade angle,which can provide technical support for the determination method of turboprop total net
thrust. |
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