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中文摘要：
建立了脉管制冷机（PTR）的全场数值模型,并在二维可压缩SIMPLEC程序基础上分别开发了针对基本型（BPTR）、小孔型（OPTR）和双向进气型（DPTR）脉管制冷机的可压缩交变流动与换热的全场数值模拟程序。通过对脉管制冷机内的流场、温度场、压缩机内压力等重要参数的数值模拟研究以及对基本型、小孔型和双向进气型脉管制冷机数值模拟结果的对比,逐步地揭示了不同类型脉管制冷机的复杂流动与换热,并从传热学角度揭示了脉管制冷机的普遍制冷机理,为脉管制冷机的进一步数值模拟研究以及优化改造奠定了基础。
英文摘要：
A full-field numerical model for the pulse tube refrigerator （PTR） is established and the full-field compressible oscillating flow and heat transfer numerical simulation code based on two dimensional compressible SIMPLEC code are developed for the basic pulse tube refrigerator （BPTR）,the orifice pulse tube refrigerator （OPTR） and the double inlet pulse tube refrigerator （DPTR）. Based on the distribution of velocity,temperature and pressure and a comparison of the numerical results between the BPTR,OPTR and DPTR,the complex fluid flow and heat transfer of BPTR are investigated and the basic principle of PTR is revealed,thus laying down foundation for its optimization and further numerical study.
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