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摘要: 使用修正的WCA状态方程和Ross变分微扰理论研究了炸药爆轰产物(液氮、液氦和水)的冲击压缩特性,并利用exp-6形式的势函数计算分子间相互作用贡献的自由能。研究和计算经验表明,在研究高温高密度条件下液体的冲击压缩特性时,分子间多体相互作用十分重要,多体作用的结果是软化了两体相互作用势。Abstract: The improved WCA theory and Ross's variation perturbation theory are used to study the shock-compression properties of liquid nitrogen, helium and water, while the exponential-six potential is used to calculate the free energy. Our study shows that in the calculation of shock-compression properties of high-temperature and high-density fluid, the inter-atomic many-body effects are much more important, which have softened the two-body potential.
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Key words:
- WCA theory /
- liquid nitrogen /
- liquid helium /
- water /
- shock-compression
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