航空计算技术
航空計算技術
항공계산기술
AERONAUTICAL COMPUTER TECHNIQUE
2014年
3期
27-32
,共6页
成水燕%李中武%聂智军%梁益华
成水燕%李中武%聶智軍%樑益華
성수연%리중무%섭지군%량익화
民机%增升装置%失速特性%数值模拟
民機%增升裝置%失速特性%數值模擬
민궤%증승장치%실속특성%수치모의
civil plane%high-lift system%stall characteristic%numerical simulation
民机低速增升装置失速特性是具有挑战性的空气动力学难题之一,决定着飞机起、降阶段机翼处于流动分离或尾迹干扰状态时的操纵稳定性,是气动设计必须关注的重要方面。利用基于N-S方程的自研多块结构网格计算软件和混合网格计算软件,对NASA高升力梯形机翼标准模型开展了失速特性计算研究,系统评估了计算软件、计算网格、湍流模型等主要因素对失速特性的影响,获得了有效预测高升力构型失速特性的计算方案,并将其成功应用于工程实际,为增升装置失速特性计算评估提供了有意义的参考。
民機低速增升裝置失速特性是具有挑戰性的空氣動力學難題之一,決定著飛機起、降階段機翼處于流動分離或尾跡榦擾狀態時的操縱穩定性,是氣動設計必鬚關註的重要方麵。利用基于N-S方程的自研多塊結構網格計算軟件和混閤網格計算軟件,對NASA高升力梯形機翼標準模型開展瞭失速特性計算研究,繫統評估瞭計算軟件、計算網格、湍流模型等主要因素對失速特性的影響,穫得瞭有效預測高升力構型失速特性的計算方案,併將其成功應用于工程實際,為增升裝置失速特性計算評估提供瞭有意義的參攷。
민궤저속증승장치실속특성시구유도전성적공기동역학난제지일,결정착비궤기、강계단궤익처우류동분리혹미적간우상태시적조종은정성,시기동설계필수관주적중요방면。이용기우N-S방정적자연다괴결구망격계산연건화혼합망격계산연건,대NASA고승력제형궤익표준모형개전료실속특성계산연구,계통평고료계산연건、계산망격、단류모형등주요인소대실속특성적영향,획득료유효예측고승력구형실속특성적계산방안,병장기성공응용우공정실제,위증승장치실속특성계산평고제공료유의의적삼고。
Stall characteristic of civil aircraft low-speed high-lift device is one of the challenging aerody-namics problems .It determines the control stability of wing in the flow separation or wake interference state when airplane is taking off and landing .It is an important aspect that aerodynamic design must be paying attention to .In this paper ,CFD computational study is performed on the standard model of NASA high-lift trapezoidal wing by using our in-house multi-block structured mesh solver and unstructured mesh solver based on RANS equation .Predictive capabilities for stall characteristic from solvers ,meshes and turbulence models are systematically evaluated .Calculation scheme which can effectively predict stall characteristic of high-lift configurations is obtained and it was applied in practical engineering successful-ly .The aim is to provide a meaningful guideline for stall characteristic prediction of civil aircraft high-lift system .