内燃机缸内复杂空间三维动态网格生成技术

Numerical Method of Generating 3D Moving Mesh for Interior Space of Engine Cylinder with Valves and Ports

将组合网格拆解为静态和动态2个区域,提出了在活塞和气门运动方向上拉伸和压缩网格空间的算法·实验结果表明:3D动态网格可以应用于内燃机缸内工作过程数值模拟·

The assembled mesh is decomposed into static and moving zones. An arithmetic of enlarging and compressing grid spaces along the moving directions of piston and valves is presented i Experiments show that the 3D moving mesh is acceptable and applicable in simulating the in-cylinder process of internal combustion engine.