Plasma kinetics in molecular plasmas and modeling of reentry plasmas

被引:23
作者
Capitelli, M. [1 ,2 ]
Celiberto, R. [3 ]
Colonna, G. [2 ]
D'Ammando, G. [1 ]
De Pascale, O. [2 ]
Diomede, P. [4 ]
Esposito, F. [2 ]
Gorse, C. [1 ,2 ]
Laricchiuta, A. [2 ]
Longo, S. [1 ,2 ]
Pietanza, L. D. [2 ]
Taccogna, F. [2 ]
机构
[1] Univ Bari, Dept Chem, I-70126 Bari, Italy
[2] CNR IMIP Bari, I-70126 Bari, Italy
[3] Bari Polytech, Dept Water Engn & Chem, Bari, Italy
[4] Univ Houston, Plasma Proc Lab, Dept Chem & Biomol Engn, Houston, TX USA
关键词
ENERGY DISTRIBUTION-FUNCTIONS; DISSOCIATIVE ELECTRON-ATTACHMENT; NEGATIVE-ION PRODUCTION; ELEY-RIDEAL REACTIONS; GRAPHITE SURFACE; H-ATOMS; SUPERELASTIC COLLISIONS; VIBRATIONAL KINETICS; BOLTZMANN-EQUATION; RATE COEFFICIENTS;
D O I
10.1088/0741-3335/53/12/124007
中图分类号
O35 [流体力学]; O53 [等离子体物理学];
学科分类号
070204 ; 080103 ; 080704 ;
摘要
State-to-state non-equilibrium plasma kinetics is widely used to characterize cold molecular and reentry plasmas. The approach requires a high level of dynamical information, and demands a large effort in the creation of complete databases of state-resolved cross sections and rate coefficients. Recent results, emphasizing the dependence of elementary process probability on both the vibrational and rotational energy content of the H-2 molecule, are presented for those channels governing the microscopic collisional dynamics in non-equilibrium plasmas, i.e. electron-impact induced resonant processes, vibrational deactivation and dissociation in atom-diatom collisions and atomic recombination at the surface. Results for H-2 plasmas, i.e. negative ion sources for neutral beam injection in fusion reactors, RF parallel-plate reactors for microelectronics, atmospheric discharges and the shock wave formed in the hypersonic entry of vehicles in planetary atmosphere for aerothermodynamics, are discussed.
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页数:21
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