瓦块式迷宫复合冷却结构的三维热-应力耦合场数值模拟

针对燃烧室新型迷宫复合冷却结构,采用三维数值模拟方法研究了该冷却结构单片瓦块的热-应力耦合场,获得其温度场、位移场和应力场的分布规律。研究表明,采用的瓦块热-应力耦合场数值计算方法具有较高的准确性,能接近真实地反映该冷却结构瓦块的热应力情况。计算结果表明,模拟试验环境条件下的迷宫冷却结构强度符合要求,能满足试验的需要,且设计较为合理。

Three-Dimensional Thermal-Stress Coupled Field's Numerical Simulation of the Maze Composite Cooling Structure Tile

In view of the maze composite cooling structure tile of combustor,a three-dimensional numerical simulation program is adopted to gain the distribution law of temperature field,displacement field and stress field.The research shows that the numerical simulation method adopted has better veracity and can reflect the tile's thermal-stress coupled field factually.The calculation result shows that the design of this cooling structure is reasonable,the structural strength can accord with the demands under the condition of simulation experiment environment and meet the experiment's demands.