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Geometrically compatible integrated design method for conformal rotor and nacelle of distributed propulsion tilt-wing UAV: 《Chinese Journal of Aeronautics》2023年第10期229-245,共17页Cheng HE Gang CHEN Xue SUN Shuangfei LI Yang LI; the Fundamental Research Funds for the Central Universities(No.56XCA2205402).; The inner rotors of distributed propulsion tilt-wing Unmanned Aerial Vehicles(UAVs)are often folded in the cruising state and deployed in vertical take-off and landing to cope with the huge difference in thrust requir...; 关键词：Distributed propulsion Geometric compatibility Integrated design NACELLE ROTOR Tilt-wing UAV

Double-decoupled inverse design of natural laminar flow nacelle under transonic conditions被引量：2: 《Chinese Journal of Aeronautics》2023年第6期1-18,共18页Heng ZHANG Jie LI Zhao YANG; supported by the National Natural Science Foundation of China(No.12272312).; The inverse design based on the pressure distribution is an essential approach to realize the improvement of Natural Laminar Flow(NLF) performance for nacelles. However, the direct definition of target pressure distri...; 关键词：Drag reduction Inverse design method NACELLE Natural laminar flow TRANSONIC

Numerical optimization of transonic natural laminar flow nacelles被引量：1: 《Chinese Journal of Aeronautics》2023年第6期35-51,共17页Chongyang YAN Yufei ZHANG Meihong ZHANG; co-supported by the National Science and Technology Major Project (No. J2019-II-0006-0026);the 1912 project;the National Natural Science Foundation of China (Nos. 91852108 and 11872230); Natural laminar flow nacelle is a promising technology for drag reduction.In this paper,an optimization platform is established for the design of transonic axisymmetric and threedimensional natural laminar flow nacell...; 关键词：Aerodynamic design NACELLE Natural laminar flow OPTIMIZATION TRANSONIC

Predicting wing-pylon-nacelle configuration flutter characteristics using adaptive continuation method: 《Advances in Aerodynamics》2023年第1期428-451,共24页Qijing Yu M.Damodaran B.C.Khoo; the Innovation Fund of the Engineering Research Center of Integration and Application of Digital Learning Technology,Ministry of Education(1221043);the Youth Research Project-The Open University of China(Q21A0009);the Adult continuing education research program-China Adult Education Association(2021-326Y).; In this study,the aeroelastic response of a wing-pylon-nacelle system in subsonic and low supersonic flow regimes is analyzed using the continuation method in conjunction with an adaptive step size control algorithm.I...; 关键词：Aeroelasticity Continuation method with adaptive step-size FLUTTER

Study of geometric parameters for the design of short intakes with fan modelling被引量：2: 《Chinese Journal of Aeronautics》2022年第11期18-32,共15页Andrea MAGRINI Ernesto BENINI; The flow over a short intake is characterised by a strong interaction with the fan, that can only be captured when the rotor blades are modelled in the numerical simulations. In this paper, we use a coupled methodolog...; 关键词：Body force method Coupled methods Fan/intake interaction Nacelle aerodynamics Short intake UHBPR

Nacelle intake flow separation reduction at cruise condition using active flow control: 《Propulsion and Power Research》2022年第3期337-352,共16页Vinayak Ramachandran Nambiar Vassilios Pachidis; Turbofan engine intakes are designed to provide separation-free flow at the fan faceover a wide range of operating conditions. But at some off-design conditions, like at high flightspeeds and high angles of attack (Ao...; 关键词：Ultra high bypass ratio turbofan engine NASA Common Research Model Reynolds-averaged Navier-Stokes(RANS) Computational fluid dynamics(CFD) ANSYS Fluent Intake flow separation Active flow control Lip blowing

Study of RCS characteristics of tilt-rotor aircraft based on dynamic calculation approach: 《Chinese Journal of Aeronautics》2022年第4期426-437,共12页Zeyang ZHOU Jun HUANG; supported by the Project funded by China Postdoctoral Science Foundation(Nos.BX20200035,2020M680005)。; To study the Radar Cross-Section(RCS) characteristics of the tilt-rotor aircraft, a dynamic calculation approach that takes into account rotor rotation and nacelle tilt is presented.Physical optics and physical theory...; 关键词：Dynamic electromagnetic scattering Nacelle tilt Radar cross-section(RCS) Tilt-rotor aircraft Transition mode

Adaptive-surrogate-based robust optimization of transonic natural laminar flow nacelle被引量：4: 《Chinese Journal of Aeronautics》2021年第10期36-52,共17页Yuan YAO Dongli MA Muqing YANG Liang ZHANG Yang GUO; financially supported by the Commercial Aircraft Corporation of China Ltd.; Natural Laminar Flow(NLF)technology is very effective for reducing the skin friction drag of aircraft engine nacelle,but the aerodynamic performance of NLF nacelle is highly sensitive to uncertain working conditions.T...; 关键词：Adaptive surrogate model Aerodynamic robustness Multi-objective optimization Natural laminar flow nacelle Uncertain working conditions

Numerical Study on Aerodynamic Performance of CK Drone Aircraft Air Inlet in Maneuvering Flight: 《Transactions of Nanjing University of Aeronautics and Astronautics》2020年第5期739-749,共11页CAO Guangzhou LI Bo LIANG Shibo TAN Hongming; supported by the Fundamental Research Funds for the Central Universities(No.56XCA2004806)。; In view of the engineering background that CK drone aircraft needs modification and upgrading to improve its maneuvering performance,numerical research and analysis of air inlet aerodynamic performance are carried out...; 关键词：CK drone aircraft high maneuvering flight suspended nacelle inlet total pressure recovery coefficient pressure distortion index

Nacelle-airframe integration design method for blended-wing-body transport with podded engines: 《Chinese Journal of Aeronautics》2019年第8期1860-1868,共9页Zhenqing XIN Zhenli CHEN Wenting GU Gang WANG Zhaoguang TAN Dong LI Binqian ZHANG; supported by the Fundamental Research Funds for the Central Universities (Nos. 3102019JC009 and G2016KY0002); Strong shock waves and flow separation often occur during the integration of nacelle and airframe for blended-wing-bodies with podded engines. To address this problem, this paper presents an integration method with nu...; 关键词：Blended-wing-body COMPUTATIONAL FLUID dynamics Drag reduction Flow INTERFERENCE Nacelle-airframe INTEGRATION

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