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Consistent Chemical Kinetics and Con...

Singh, Narendra.

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Consistent Chemical Kinetics and Continuum Models for High Temperature Air.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Consistent Chemical Kinetics and Continuum Models for High Temperature Air./
作者:	Singh, Narendra.
出版者:	Ann Arbor : ProQuest Dissertations & Theses, : 2020,
面頁冊數:	192 p.
附註:	Source: Dissertations Abstracts International, Volume: 81-10, Section: B.
Contained By:	Dissertations Abstracts International81-10B.
標題:	Aerospace engineering. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27741486
ISBN:	9781658487535

Consistent Chemical Kinetics and Continuum Models for High Temperature Air.
Singh, Narendra.

Consistent Chemical Kinetics and Continuum Models for High Temperature Air. - Ann Arbor : ProQuest Dissertations & Theses, 2020 - 192 p.

Source: Dissertations Abstracts International, Volume: 81-10, Section: B.

Thesis (Ph.D.)--University of Minnesota, 2020.

This item must not be sold to any third party vendors.

High-fidelity nonequilibrium reaction models for hypersonic air flow are developed. Hypersonic flows create shock waves, which compress and heat the surrounding gas to high-temperatures. Strong shock waves cause dissociation of nitrogen and oxygen molecules. Predicting the extent of dissociation and recombination of atomic species is important since the state of the gas near the vehicle surface determines heating rates and gas-surface chemistry that damages the heat shield. Since experimental data is difficult to obtain under such extreme conditions, numerical simulation plays an important role. Predictive numerical simulations require accurate reaction chemistry models. Computational models developed thus far range from simple empirical models fit to limited experimental data to models with millions of input parameters that track individual quantized energy state transitions. The level of model fidelity required for accurate engineering analysis remains an open question of active research. Models coupling internal energy and dissociation chemistry tend to be developed at either the kinetic scale or the continuum scale. In this dissertation, we develop new nonequilibrium models for shock heated flows that are analytically consistent between kinetic and continuum formulations, and are based on recent ab-initio data.

ISBN: 9781658487535Subjects--Topical Terms:

1002622
Aerospace engineering.
Subjects--Index Terms:

Abinitio simulations

Consistent Chemical Kinetics and Continuum Models for High Temperature Air.
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020 $a 9781658487535
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100 1 $a Singh, Narendra. $3 3524187
245 1 0 $a Consistent Chemical Kinetics and Continuum Models for High Temperature Air.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2020
300 $a 192 p.
500 $a Source: Dissertations Abstracts International, Volume: 81-10, Section: B.
500 $a Advisor: Schwartzentruber, Thomas E.
502 $a Thesis (Ph.D.)--University of Minnesota, 2020.
506 $a This item must not be sold to any third party vendors.
520 $a High-fidelity nonequilibrium reaction models for hypersonic air flow are developed. Hypersonic flows create shock waves, which compress and heat the surrounding gas to high-temperatures. Strong shock waves cause dissociation of nitrogen and oxygen molecules. Predicting the extent of dissociation and recombination of atomic species is important since the state of the gas near the vehicle surface determines heating rates and gas-surface chemistry that damages the heat shield. Since experimental data is difficult to obtain under such extreme conditions, numerical simulation plays an important role. Predictive numerical simulations require accurate reaction chemistry models. Computational models developed thus far range from simple empirical models fit to limited experimental data to models with millions of input parameters that track individual quantized energy state transitions. The level of model fidelity required for accurate engineering analysis remains an open question of active research. Models coupling internal energy and dissociation chemistry tend to be developed at either the kinetic scale or the continuum scale. In this dissertation, we develop new nonequilibrium models for shock heated flows that are analytically consistent between kinetic and continuum formulations, and are based on recent ab-initio data.
590 $a School code: 0130.
650 4 $a Aerospace engineering. $3 1002622
650 4 $a Chemistry. $3 516420
650 4 $a Mathematics. $3 515831
653 $a Abinitio simulations
653 $a Chemical kinetics
653 $a Computational fluid dynamics
653 $a High-temperature
653 $a Hypersonics
653 $a Nonequilibrium
690 $a 0538
690 $a 0485
690 $a 0405
710 2 $a University of Minnesota. $b Aerospace Engineering and Mechanics. $3 1681609
773 0 $t Dissertations Abstracts International $g 81-10B.
790 $a 0130
791 $a Ph.D.
792 $a 2020
793 $a English
856 4 0 $u http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=27741486