Accession Number : ADA303999

Title :   The Structure of Laminar Flames of CH4/NO2, CH2O/NO2, & HCN/NO2.

Descriptive Note : Final rept. 31 Mar 90-31 Dec 94,

Corporate Author : CALIFORNIA UNIV SAN DIEGO LA JOLLA DEPT OF APPLIED MECHANICS AND ENGINEERING SCIENCES

Personal Author(s) : Seshadri, Kalyanasundaram

PDF Url : ADA303999

Report Date : 03 JAN 1996

Pagination or Media Count : 58

Abstract : The principal objective of this research is to develop chemical-kinetic models which can be employed to model the combustion of solid propellants. The research was performed in collaboration with scientists at the U. S. Army Research Laboratory at Aberdeen Proving Grounds, Maryland. The gas phase combustion over the burning surface of many solid propellants take place in three zones-the primary reaction zone, the dark zone and the secondary reaction zone. This study was focused on characterizing the structures of the secondary reaction zone and the dark zone. The research comprised several studies. They were (1) studies on the structures of CH4/NO2 and CH2O/NO2 flames which are considered to be subsystems of the gas phase combustion taking place in the secondary reaction zone, (2) studies on the structures of hydrocarbon-air and alcohol-air flames which are useful for modeling CH4/NO2 and CH2O/NO2 flames, (3) studies on the structure of the dark zone formed over the burning surface of many solid propellants. Simplified and reduced chemical-kinetic mechanisms are deduced to describe chemical reactions taking place in these systems. jg p1

Descriptors :   *COMBUSTION, *FLAMES, *LAMINAR FLOW, *SOLID PROPELLANTS, ARMY RESEARCH, AIR, SECONDARY, VAPOR PHASES, GASES, SURFACES, DARKNESS, CHEMICAL REACTIONS, HYDROCARBONS, KINETICS, ALCOHOLS.

Subject Categories : Organic Chemistry
      Inorganic Chemistry
      Physical Chemistry
      Fluid Mechanics
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE