Accession Number : AD0638731

Title :   RESEARCH ON THERMODYNAMICS AND DYNAMICS OF GAS MIXTURES WITH TWO RATE PROCESSES.

Descriptive Note : Interim rept.

Corporate Author : APPLICAZIONI E RICERCHE SCIENTIFICHE S P A NAPLES (ITALY)

Personal Author(s) : Monti,R.

Report Date : 1965

Pagination or Media Count : 116

Abstract : Part I recalls the findings of previous work, in general doubly reacting gas mixtures, and outlines the procedure to be followed in Part II and III. Part II develops a model for a two biatomic gases mixture, the first gas may vibrate in non-equilibrium and the second gas may dissociate in non-equilibrium. State equations, stability matrix, characteristic speeds, specific heats are given as functions of the thermodynamic variables chosen for the analysis. Part III develops a model of a single biatomic gas which may vibrate and dissociate in non-equilibrium, again all the expressions of the thermodynamics functions are given. In Part IV, a thermokinetic model for the mixtures considered in Part III is developed; the rate processes and the kinetic matrix are derived, and the range of validity of the linearized equations and the effect of coupling are investigated in detail. The last part considers applications of the model developed in Parts III and IV to the nozzle flow problem and a sample calculation developed by numerical methods is reported. (Author)

Descriptors :   (*GAS FLOW, *THERMODYNAMICS), DYNAMICS, SPECIFIC HEAT, NOZZLE GAS FLOW, ENTROPY, VELOCITY, REACTION KINETICS, ITALY

Subject Categories : Fluid Mechanics
      Thermodynamics

Distribution Statement : APPROVED FOR PUBLIC RELEASE