Energy transfer involving diatomic molecules

Thesis/Dissertation · Thu Jan 01 00:00:00 EST 1981

OSTI ID:6266067

Gibbons, J P

A three-dimensional, Monte Carlo model for the calculating of vibrational energy relaxation and transfer rates for both diatomic-monatomic and diatomic-diatomic systems was developed, analyzed and implemented. Mediation by internal angular momentum was demonstrated to be important in these energy transfer processes. This was named the TLV mechanism for translation to vibration flow through changes in angular momentum. The equations for the component of vibrational energy change due to the TLV mechanism for the two extreme cases of very hard or very soft collisions were derived. Results of using these equations were compared with those obtained by direct integration of the differential equations of motion and in many cases were found to agree. After this calculational procedure was developed for Ar - O/sub 2/ collisions, it was also applied to He - O/sub 2/ and to the near resonant vibration energy exchange process: CO(nu = 0) + N/sub 2/(nu = 1) ..-->.. CO(nu = 1) + N/sub 2/(nu = 0). These three processes were investigated at several temperatures between room temperature and 4000 K.

• Research Organization: Alabama Univ., Huntsville (USA)
• OSTI ID: 6266067
• Resource Relation: Other Information: Thesis (Ph. D.)
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ARGON
MOLECULE-MOLECULE COLLISIONS
CARBON MONOXIDE
HELIUM
ENERGY TRANSFER
RELAXATION
NITROGEN
OXYGEN
ANGULAR MOMENTUM
MONTE CARLO METHOD
THEORETICAL DATA
VIBRATIONAL STATES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
COLLISIONS
DATA
ELEMENTS
ENERGY LEVELS
EXCITED STATES
FLUIDS
GASES
INFORMATION
MOLECULE COLLISIONS
NONMETALS
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
RARE GASES
640304* - Atomic
Molecular & Chemical Physics- Collision Phenomena