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Zhu Thesis Final.pdf (2.75 MB)
ETD Abstract Container
Abstract Header
Applications and Modeling of Non-Thermal Plasmas
Author Info
Zhu, Yonry R
Permalink:
http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1492777535797122
Abstract Details
Year and Degree
2018, Bachelor of Science (BS), Ohio University, Engineering Physics.
Abstract
This thesis focuses on validation of a 0D plasma kinetic model and its subsequent use as an explanatory tool to support the results of hot-fire tests of a plasma assisted rotating detonation combustor. The plasma model predictions showed good agreement with experimentally measured values of various ground state species number densities, vibrationally excited N2 number densities, plasma temperatures, and ignition delay times. Once validated, the plasma model was combined with a ZND detonation model and semi-empirical correlation to determine the effects of a non-thermal plasma on the reduction of the detonation cell size for an H2 - air mixture. The modeling results showed that non-thermal plasma significantly reduces the detonation cell size. This effect is most pronounced at lean conditions, where the model predicted a reduction in cell size by a factor of more than 100. For stoichiometric and rich conditions, the cell size reduction was around a factor of 5. An investigation was conducted to determine the viability of using a non-thermal plasma to expand the operating regime of a rotating detonation combustor. The plasma was produced with a nanosecond pulse generator connected to a ceramic and metal centerbody electrode. Hot-fire testing results showed that the plasma causes detonation onset in conditions that would otherwise not support detonation. This effect was most prominent at near-stoichiometric conditions, with a reduced effect for richer or leaner mixtures.
Committee
David Burnette (Advisor)
Pages
79 p.
Subject Headings
Aerospace Engineering
;
Mechanical Engineering
;
Plasma Physics
Keywords
non-thermal plasma
;
plasma assisted combustion
;
nanosecond pulsed plasma
;
plasma modeling
;
detonation combustion
;
rotating detonation combustor
;
detonation
;
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Citations
Zhu, Y. R. (2018).
Applications and Modeling of Non-Thermal Plasmas
[Undergraduate thesis, Ohio University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1492777535797122
APA Style (7th edition)
Zhu, Yonry.
Applications and Modeling of Non-Thermal Plasmas.
2018. Ohio University, Undergraduate thesis.
OhioLINK Electronic Theses and Dissertations Center
, http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1492777535797122.
MLA Style (8th edition)
Zhu, Yonry. "Applications and Modeling of Non-Thermal Plasmas." Undergraduate thesis, Ohio University, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=ouhonors1492777535797122
Chicago Manual of Style (17th edition)
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Document number:
ouhonors1492777535797122
Download Count:
615
Copyright Info
© 2017, all rights reserved.
This open access ETD is published by Ohio University Honors Tutorial College and OhioLINK.