CAJ | 학술논문

为了研究高空远程滑翔UUV气动参数特性，运用计算流体动力学（ computational fluid dynam-ics， CFD）理论，采用结构和非结构分域混合网格方案，确定计算域、边界条件、求解Navier-Stokes方程对亚音速下高空远程滑翔UUV三维绕流流场进行数值模拟。仿真数据与估算数据进行对比，分析UUV的纵向气动特性、横向气动特性和操纵导数特性，结果显示，仿真数据与计算数据吻合较好，并且其气动特性满足航行器的低阻特性和静稳定性的要求，两种计算方法的准确性进行了相互验证，不仅利于下一步进行航行器的操纵性、稳定性和弹道特性研究，而且为进一步完善设计和模型加工试验提供重要依据。
위료연구고공원정활상UUV기동삼수특성，운용계산류체동역학（ computational fluid dynam-ics， CFD）이론，채용결구화비결구분역혼합망격방안，학정계산역、변계조건、구해Navier-Stokes방정대아음속하고공원정활상UUV삼유요류류장진행수치모의。방진수거여고산수거진행대비，분석UUV적종향기동특성、횡향기동특성화조종도수특성，결과현시，방진수거여계산수거문합교호，병차기기동특성만족항행기적저조특성화정은정성적요구，량충계산방법적준학성진행료상호험증，불부리우하일보진행항행기적조종성、은정성화탄도특성연구，이차위진일보완선설계화모형가공시험제공중요의거。
In order to study the pneumatic parameter characteristics of the high-altitude long-distance gliding UUV with computational fluid dynamics theory, we use the hybrid grid strategy, determine the computational domain and boundary conditions, solve the Navier-Stokes computation, and complete the three-dimensional subsonic flow field numerical simulation of the UUV. Comparing simulation results with estimation results ones, we analyze the longitu-dinal aerodynamic parameters, the lateral aerodynamic parameters and the manipulation derivatives. The results and their analysis show preliminarily that: ( 1 ) the calculated and simulated results are consistent; ( 2 ) aerodynamic characteristics meet the requirements of the low draft characteristic and the static stability of the UUV. The two methods give consistent results;they not only facilitate studying the maneuverability, stability and ballistic charac-teristics of the UUV, but also provide an important basis for improving the designs and processing of experimental models.