矩形射流矢量喷管数值模拟研究

根据流场特性设计了1个矩形射流矢量喷管。提出了在喷管内加入射流,促使喷管主流速度增高、和形成出口矢量角的设想;采用FLUENT流体计算软件,对射流矢量喷管内的二维内流场进行了模拟,分析了喷管出口位置对射流矢量喷管内流场、推力、出口气流方向和总压损失等气动参数的影响,并分析了其在不对称射流情况下,对喷管射流位置与气流方向、推力和总压损失等气动参数的影响,确定了第2道射流的位置。

Numerical Simulation on Rectangular Jet Vector Nozzle

A rectangular jet vector nozzle was designed based on the flow field characteristics.The assumption was presented that the jet was adopted in the nozzle to increase the speed of the main flow in the nozzle and form the exit vector angle.The 2D inner flow field in jet vector nozzle was simulated by the fluid calculation software FLUENT.The effects of the nozzle exit position on the aerodynamic parameters of flow field,thrust,exit flow direction and total pressure loss etc in the jet vector nozzle were analyzed.The effects of the nozzle exit position on the aerodynamic parameters of flow direction,thrust and total pressure loss etc with the asymmetric jet were also analyzed and the position of the second jet slot was confirmed