回热器增压腔对斯特林发动机性能影响的研究

Research on the Influence of Regenerator Plenum Spacing on the Performance of Stirling Engine

建立了回热器碰撞射流数值计算模型,开展了回热器三维仿真分析;研究了增压腔对回热器基体内流场的影响规律,并分析了其对斯特林发动机性能的影响。以某型号斯特林发动机为对象,对仿真结果进行的试验验证表明:仿真结果和试验结果吻合性较好,研究结果可供斯特林发动机性能改进做参考。

The regenerator impacting jet numeric calculation model was established, and the 3D simula- tion analysis was carried out. The influence rule of plenum spacing on the flow field of regenerator body was studied, and its influence on Stifling engine performance was also analyzed. Taking a certain type of Stifling engine as the research object, test verification was carried out with respect to the simulation re- sults, which showed that the simulation results coincided well with the test results. The research results offer reference for the improvement of Stifling engine performance.