基于CFD的舰载机飞行模拟器甲板流场建模研究

Studies on CFD Based Deck Flow Field Modeling of Carrier-borne Aircraft Flight Simulator

研究了利用计算流体力学(CFD)技术进行舰载机飞行模拟器甲板流场建模的方法。通过计算建立载舰附近不同来流方向、来流速度的流场分布情况并建立数据库,利用查表插值的方法调用。可实现在正常来流速度范围内各种来流情况下甲板上及舰船尾流区任意一点上速度及压力的快速查询。由于该方法中CFD计算采用了离线计算方式,计算结果可充分校验和修正,因而具有稳定可靠、结果准确、调用快捷的特点。有效解决了计算流体力学技术计算时间较长无法用于实时性要求极高的人在回路仿真的问题,可用于舰载机飞行模拟器建模。

The method of modeling the deck flow field using computational flight dynamics technology is proposed.The database is established by computing the deck flow filed of different direction and speed.Using this method,the wind speed and pressure in the region around the ship can be easily calculated through table-lookup and interpolation.Because the database is made up off-line,the database can be verified and corrected carefully,the accuracy of the database can be guaranteed.And then the accuracy and stability of simulation procedure can be guaranteed.This method is a solution for the problem of flow filed modeling in real time man-in-loop simulation.