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Development and Validation of Open Source Software for Electromagnetics Simulation and Multiphysics Coupling.

Record Type:	Language materials, manuscript : Monograph/item
Title/Author:	Development and Validation of Open Source Software for Electromagnetics Simulation and Multiphysics Coupling./
Author:	Icenhour, Casey Tyler.
Description:	1 online resource (260 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 85-03, Section: B.
Contained By:	Dissertations Abstracts International85-03B.
Subject:	Software quality. -
Online resource:	click for full text (PQDT)
ISBN:	9798380262484

Development and Validation of Open Source Software for Electromagnetics Simulation and Multiphysics Coupling.
Icenhour, Casey Tyler.

Development and Validation of Open Source Software for Electromagnetics Simulation and Multiphysics Coupling. - 1 online resource (260 pages)

Source: Dissertations Abstracts International, Volume: 85-03, Section: B.

Thesis (Ph.D.)--North Carolina State University, 2023.

Includes bibliographical references

Electromagnetism plays a critical role in a wide range of fields, including energy, communications, advanced manufacturing, plasma physics, and accurate and flexible tools to perform computational studies in electromagnetics are important to understanding cutting edge technological developments. The plasma physics and fusion energy communities, in particular, have called for increased funding and emphasis on software flexibility, support for new architectures, and use of standardized libraries. Essentially, an engineered softwared approach is desired that can pair cutting-edge modeling and simulation approaches with the needs of experiments and hardware development. The ability to handle multiphysics simulation is especially important. Many applications of electromagnetic simulation are inherently multiphysics problems, where there is non-linear feedback between the various physics relevant to the performance or function of the system being modeled. As an example, within a low temperature plasma physics simulation, multiple interconnected physics of interest exist: electromagnetic power coupling to the feed gas and creating ionized species, diffusion of ionic and neutral species of interest, interactions of those species (such as collisions and chemical reactions), heat conduction, erosion, and thermo-mechanical effects on and within surrounding structures, etc. In this work, a general-purpose computational electromagnetics module was developed within the MOOSE framework, for standalone operation as well as in use as a library. The multiphysics emphasis of the MOOSE system allows for the module to couple seamlessly to other MOOSE-based physics modules and application codes, enabling great flexibility.To begin this work, the status of modeling and simulation within the low-temperature plasma (LTP) community was assessed. The two principle modeling types-fluid and kinetic descriptions- were described and the fluid description was chosen as the main model of interest in this work. Capturing electromagnetic effects in LTP discharges, such as nonuniformities resulting from wave interactions or fringing effects, is an important part of plasma modeling for experimental design, but many models that do not use an electromagnetic description must use alternative analytical models to include electromagnetic effects, or leave it out altogether. Leaving out these effects can, at best, lead to non-ideal results in an experiment, and, at worst, ruin a poorly characterized microchip production process. One plasma code based on MOOSE, Zapdos, was noted as having current gaps in capability that could benefit from the inclusion of a full electromagnetic description. The MOOSE electromagnetics module could be well-suited to filling this gap.Another gap in MOOSE ecosystem capability was identified in the area of electrothermal problems, notably applied to the area of electric field assisted sintering (also known as spark plasma sintering, or SPS). SPS is a well-known process for the manufacture of advanced materials and composites using conducting powders, applied electric current, and applied pressures. SPS allows the production of arbitrary part configurations and contains multiple physics processes: Joule heat-ing, powder compact densification, grain growth, volume diffusion, and vapor transport, amongst others. Thus, it is inherently a multiscale, multiphysics process. Up until this point, sintering studies had been undertaken in the MOOSE framework at the grain and pore level, but lack of an electromagnetics solver capability that could couple to other engineering-scale models (heat conduction, solid mechanics) and then couple down to the powder scale was missing.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2024

Mode of access: World Wide Web

ISBN: 9798380262484Subjects--Topical Terms:

1468615
Software quality.
Index Terms--Genre/Form:

554714
Electronic books.

Development and Validation of Open Source Software for Electromagnetics Simulation and Multiphysics Coupling.
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502 $a Thesis (Ph.D.)--North Carolina State University, 2023.
504 $a Includes bibliographical references
520 $a Electromagnetism plays a critical role in a wide range of fields, including energy, communications, advanced manufacturing, plasma physics, and accurate and flexible tools to perform computational studies in electromagnetics are important to understanding cutting edge technological developments. The plasma physics and fusion energy communities, in particular, have called for increased funding and emphasis on software flexibility, support for new architectures, and use of standardized libraries. Essentially, an engineered softwared approach is desired that can pair cutting-edge modeling and simulation approaches with the needs of experiments and hardware development. The ability to handle multiphysics simulation is especially important. Many applications of electromagnetic simulation are inherently multiphysics problems, where there is non-linear feedback between the various physics relevant to the performance or function of the system being modeled. As an example, within a low temperature plasma physics simulation, multiple interconnected physics of interest exist: electromagnetic power coupling to the feed gas and creating ionized species, diffusion of ionic and neutral species of interest, interactions of those species (such as collisions and chemical reactions), heat conduction, erosion, and thermo-mechanical effects on and within surrounding structures, etc. In this work, a general-purpose computational electromagnetics module was developed within the MOOSE framework, for standalone operation as well as in use as a library. The multiphysics emphasis of the MOOSE system allows for the module to couple seamlessly to other MOOSE-based physics modules and application codes, enabling great flexibility.To begin this work, the status of modeling and simulation within the low-temperature plasma (LTP) community was assessed. The two principle modeling types-fluid and kinetic descriptions- were described and the fluid description was chosen as the main model of interest in this work. Capturing electromagnetic effects in LTP discharges, such as nonuniformities resulting from wave interactions or fringing effects, is an important part of plasma modeling for experimental design, but many models that do not use an electromagnetic description must use alternative analytical models to include electromagnetic effects, or leave it out altogether. Leaving out these effects can, at best, lead to non-ideal results in an experiment, and, at worst, ruin a poorly characterized microchip production process. One plasma code based on MOOSE, Zapdos, was noted as having current gaps in capability that could benefit from the inclusion of a full electromagnetic description. The MOOSE electromagnetics module could be well-suited to filling this gap.Another gap in MOOSE ecosystem capability was identified in the area of electrothermal problems, notably applied to the area of electric field assisted sintering (also known as spark plasma sintering, or SPS). SPS is a well-known process for the manufacture of advanced materials and composites using conducting powders, applied electric current, and applied pressures. SPS allows the production of arbitrary part configurations and contains multiple physics processes: Joule heat-ing, powder compact densification, grain growth, volume diffusion, and vapor transport, amongst others. Thus, it is inherently a multiscale, multiphysics process. Up until this point, sintering studies had been undertaken in the MOOSE framework at the grain and pore level, but lack of an electromagnetics solver capability that could couple to other engineering-scale models (heat conduction, solid mechanics) and then couple down to the powder scale was missing.
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