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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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液氦冲击压缩特性的理论计算
DOI: 10.11858/gywlxb.2002.01.012, PP. 70-74
Keywords: 冲击压缩,液氦,WCA状态方程,有效两体势
Abstract:
用量子力学修正的WCA液体变分微扰理论计算了液氦冲击压缩曲线，计算中体系分子间相互作用势选择EXP-6有效两体势模型，两体势参数通过对实验数据的拟和优选。计算结果在一次冲击压力范围内，冲击温度及压力与Nellis等人的实验数据符合很好，二次冲击数据与实验值稍有偏差，但也在其误差范围内，由于二次冲击只有一个实验点，因此实验数据不能提供更多的信息以供比较。计算结果表明与其他分子间相互作用势相比，选择α值为12.7的EXP-6势更为准确地反映了液氦分子间的相互作用。
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