Temperature Measurements of Condensed Gaseous Hydrogen-Helium Mixtures under Multi-Shock Compression
GU Yun-Jun, CHEN Qi-Feng, CAI Ling-Cang, CHEN Zhi-Yun, ZHENG Jun
National Key Laboratory of Shock Wave and Detonation Physics Research,Institute of Fluid Physics, China Academy of Engineering Physics, PO Box 919-102, Mianyang 621900
Temperature Measurements of Condensed Gaseous Hydrogen-Helium Mixtures under Multi-Shock Compression
GU Yun-Jun, CHEN Qi-Feng, CAI Ling-Cang, CHEN Zhi-Yun, ZHENG Jun
National Key Laboratory of Shock Wave and Detonation Physics Research,Institute of Fluid Physics, China Academy of Engineering Physics, PO Box 919-102, Mianyang 621900
摘要Temperatures of multi-shock compressed gaseous hydrogen--helium mixtures with a mole component H2:He=1:1.21 up to 7100K are measured at pressures up to 10GPa by means of an instantaneous optical pyrometer. The gas mixtures are shocked from environmental temperature at the initial pressure 20MPa. The measured second-shock temperature differs from the predictions of the non-dissociation model by up to 40% and is in good agreement with that of the dissociation model, indicating that a considerable amount of molecular dissociation occurs.
Abstract：Temperatures of multi-shock compressed gaseous hydrogen--helium mixtures with a mole component H2:He=1:1.21 up to 7100K are measured at pressures up to 10GPa by means of an instantaneous optical pyrometer. The gas mixtures are shocked from environmental temperature at the initial pressure 20MPa. The measured second-shock temperature differs from the predictions of the non-dissociation model by up to 40% and is in good agreement with that of the dissociation model, indicating that a considerable amount of molecular dissociation occurs.
[1] Kowalski P M et al 2007 Phys. Rev. B 76 075112 [2] Levashov P R et al 2006 J. Phys. A: Math. Gen. 39 4447 [3] Redmer R et al 2006 J. Phys. A: Math. Gen. 39 4479 [4] Chabrier G, Saumon D and Potekhin A Y 2006 J. Phys.A: Math. Gen. 39 4411 [5] Saumon D, Chabrier G and van Horn H M 1995 Astrophys.J. Suppl. 99 713 [6] Holmes N C, Ross M, and Nellis W J 1995 Phys. Rev. B 52 15835 [7] Collins G W et al 2001 Phys. Rev. Lett. 87165504 [8] Chen Q F et al 2004 Physica B 348 299 [9]Ternovoi V Ya et al 2004 JETP Lett. 79 6 [10] Chen Q F et al 2008 J. Chem. Phys. 128104512 [11] Chen Q F et al. 2006 J. Chem. Phys. 124074510 [12] Chen Q F and Cai L C 2006 Int. J. Thermophys. 27 437 [13] Juranek H and Redmer R 2002 J. Chem. Phys. 117 1768 [14] Juranek H and Redmer R 2000 J. Chem. Phys. 112 3780 [15] Duffy T S and Ahrens T J 1997 J. Appl. Phys. 82 4259 [16] X S Xu and W X Zhang 1986 Applied Equation of Statep 527 (in Chinese) [17] Marsh S P 1980 LASL Shock Hugoniot Data(California: University of California) p 262 [18] Jing F Q 1986 Experimental Equation of StateIntroduction p 80 (In Chinese) [19] Partouche-Sebban D et al 2005 Physica B 364 1 [20]Kwiatkowski C S et al 1999 Shock Compression ofCondensed Matter 505 641 [21]Hare D E et al 1999 Shock Compression of CondensedMatter 505 637
2009, Vol. 26 
