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Solution to multi term Boltzmann equation for plasma assisted combustion

Posted on:2011-04-25Degree:M.SType:Thesis
University:The University of Texas at ArlingtonCandidate:Luthra, AntrikshFull Text:PDF
GTID:2440390002951111Subject:Engineering
Abstract/Summary:
Plasma assisted ignition and combustion (PAIC) is a technology where plasma is generated by high voltage, nano second pulse duration and high repetitive rate pulses. The high reduced electric field during the pulse allows efficient electronic excitation and molecular dissociation, thereby generating a pool of chemically active radical species. This speeds up the reaction process needed to generate a high speed flame.;A very high energy is liberated by collision of excited electrons with the neutral molecules of fuel in such a way that a minimal amount of energy go in momentum transfer. The majority of collision events are characterized by high kinetic energy so that the ionization takes place forming a pool of radicals which will in turn accelerate the chemical reactions.;The simulation of flame generated after the oxidation of radicals need their reaction rates and the reaction rates are directly proportional to the velocity distribution function of the excited electrons.;Multi term Boltzmann Equation is used in order to determine these electron velocity distribution functions at extreme reduced field conditions typical to hypersonic space flights.
Keywords/Search Tags:Multi term boltzmann equation, Velocity distribution
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