He Yi-Guang, Tang Xiu-Zhang, Pu Yi-Kang
High Power Excimer Laser Laboratory, China Institute of Atomic Energy, Beijing 102413, China.
Phys Rev E Stat Nonlin Soft Matter Phys. 2008 Jul;78(1 Pt 2):017301. doi: 10.1103/PhysRevE.78.017301. Epub 2008 Jul 2.
We model a shock wave in an ideal gas by combining the Burnett approximation and Holian's conjecture. We use the temperature in the direction of shock propagation rather than the average temperature in the Burnett transport coefficients. The shock wave profiles and shock thickness are compared with other theories. The results are found to agree better with the nonequilibrium molecular dynamics (NEMD) and direct simulation Monte Carlo (DSMC) data than the Burnett equations and the modified Navier-Stokes theory.
我们通过结合伯内特近似和霍利安猜想，对理想气体中的激波进行建模。我们在伯内特输运系数中使用激波传播方向上的温度，而非平均温度。将激波剖面和激波厚度与其他理论进行了比较。结果表明，与伯内特方程和修正的纳维-斯托克斯理论相比，该结果与非平衡分子动力学（NEMD）和直接模拟蒙特卡罗（DSMC）数据的吻合度更高。
