飞机及尾焰的红外仿真

为了简单易行地实现飞机及尾焰的动态红外实时渲染输出，设计并建立一种基于Vega平台的简化飞机尾焰粒子特效模型。介绍Vega仿真技术，并详细说明目标建模、尾焰建模和温度变换3个关键技术，经过合理地设计Vega Lynx界面Special Effect模块参数，建立飞机尾焰粒子特效模型，并通过对飞机几何模型进行区域划分和经验温度赋值来模拟飞机蒙皮温度场分布，同时针对Vega红外能量量化范围的局限性，对目标温度进行变换处理，最终通过仿真应用程序给出飞机及尾焰的红外渲染结果。仿真结果表明：该方法简单易行，有较高的逼真度，满足多数仿真的应用要求。

Aircraft and Tail Flame IR Simulation

In order to realize the dynamic infrared real-time rending output of aircraft and its tail flame simply, a simplified particle effect model of aircraft plume based on Vega is designed and built. In this paper Vega simulation technology is introduced, and the three key technologies of object modeling, tail flame modeling and temperature transformation are presented in detail. Through reasonable parameter design of Special Effect module in Vega’s Lynx interface, the aircraft plume model is built.Then, aircraft temperature field is simulated by dividing the plane geometry model into regions and giving experiential temperature for each region. For the limitation of quantitative range of infrared radiation, a transformation is used to the target temperature. In the end, the infrared simulation result of aircraft and its tail flame is provided by application program. The result proves that the simulation method in this paper is simple and has high fidelity, and can meet the most requirements of simulation application.