{"id":{"repo_id":"uiuc","oai_identifier":"oai:www.ideals.illinois.edu:2142/113793"},"canonical_url":"https://search.dev.ndltd.org/etd/uiuc/oai:www.ideals.illinois.edu:2142/113793","repository":{"repo_id":"uiuc","name":"University of Illinois - Urbana-Champaign","base_url":"https://www.ideals.illinois.edu/oai-pmh"},"display":{"title":"Kinetic modelling of eletrospray systems using particle in cell method","abstract":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms","abstract_html":"Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms","abstract_has_math":false,"creators":["Budaraju, Siddharth"],"institution":"University of Illinois at Urbana-Champaign","degree_name":"M.S.","degree_level":"Thesis","degree_discipline":"Aerospace Engineering","degree_department":null,"school":null,"contributors":["Levin, Deborah"],"advisors":[],"committee_chairs":[],"committee_members":[],"year":2022,"date_issued":"2022-04-29T21:34:00Z","date_published":"2022-04-29T21:34:00Z","updated_at":"2026-07-22T22:24:53Z","subjects":["Electrospray propulsion","Particle-in-cell approach","Lagrangian frame","Eulerian mesh"],"languages":["en","eng"],"rights":["Copyright 2021 Budaraju Siddharth"],"rights_urls":[],"identifier_entries":[]},"links":{"outbound_url":"http://hdl.handle.net/2142/113793","outbound_label":"Handle","outbound_source":"dc:identifier"},"metadata_groups":[{"id":"people","label":"People","entries":[{"key":"dc:contributor","label":"Contributor","values":["Levin, Deborah"]},{"key":"dc:creator","label":"Author","values":["Budaraju, Siddharth"]}]},{"id":"academic_context","label":"Academic Context","entries":[{"key":"dc:date","label":"Dc Date","values":["2022-04-29T21:34:00Z","2021-12","2021-07-21"]},{"key":"dc:type","label":"Dc Type","values":["text"]},{"key":"thesis:degree_discipline","label":"Discipline","values":["Aerospace Engineering"]},{"key":"thesis:degree_level","label":"Degree Level","values":["Thesis"]},{"key":"thesis:degree_name","label":"Degree Name","values":["M.S."]},{"key":"thesis:institution_name","label":"Thesis Institution Name","values":["University of Illinois at Urbana-Champaign"]}]},{"id":"subjects_keywords","label":"Subjects and Keywords","entries":[{"key":"dc:subject","label":"Dc Subject","values":["Electrospray propulsion","Particle-in-cell approach","Lagrangian frame","Eulerian mesh"]}]},{"id":"language_rights","label":"Language and Rights","entries":[{"key":"dc:language","label":"Dc Language","values":["en","eng"]},{"key":"dc:rights","label":"Dc Rights","values":["Copyright 2021 Budaraju Siddharth"]}]},{"id":"identifiers","label":"Identifiers","entries":[{"key":"dc:identifier","label":"Identifier","values":["http://hdl.handle.net/2142/113793"]}]},{"id":"additional","label":"Additional Metadata","entries":[{"key":"dc:description","label":"Description","values":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms","The student, Siddharth Budaraju, accepted the attached license on 2021-07-20 at 13:59.","The student, Siddharth Budaraju, submitted this Thesis for approval on 2021-07-20 at 13:59.","This Thesis was approved for publication on 2021-07-21 at 13:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17028 on 2022-04-06 at 17:08:25","Made available in DSpace on 2022-04-29T21:34:00Z (GMT). No. of bitstreams: 2 BUDARAJU-THESIS-2021.pdf: 2395338 bytes, checksum: 405e5579b61198fcb3afbf2bb503dd17 (MD5) LICENSE.txt: 4215 bytes, checksum: 14fbb0e32e8859b1003e7829f747b467 (MD5) Previous issue date: 2021-07-21","Electrospray propulsion facilitating ionic liquids is a recent booming application used by satellites applications for micro-thrust purposes. With the benefit of numerical methods, it is possible to model the expansion of the charged ions emanating from the ionic liquid. Particle-in-cell (PIC) approach is one such numerical method that can be used for high-fidelity plasma modelling, where individual charged particles in a Lagrangian frame are tracked continuously, while the density and currents are computed on Eulerian mesh points. In this thesis, the PIC technique was used to model the plasma plume expansion for micrometers and millimeter domains. The number density and timestep used in the simulations for the millimeter domain cases, calculated from the inlet area, were 7.3 x 10^(18) #/m^3 and 4.5 x 10^( −12) s. The plume characteristics showed striations that formed due to the large radial electric fields generated near the emitter inlet. To resolve the electric field better, an electric field correction term was implemented, where the field was redefined with the first order gradient term along with the standard centroid field value of each cell. The domain was then refined into constant, linear and exponential grids to study the influence of the refinement near the emitter region on the striations forming in the domain. The correction implementation was found to benefit in reducing the striations and showed maximum significant for constant refinement grid case, where the divergence gap formed near the acceleration region decreased greatly. The linear case showed slight improvement, followed by the exponential case having the finest grid near the emitter inlet showed no significant change with correction implementation."]},{"key":"dc:format","label":"Dc Format","values":["application/pdf"]},{"key":"dc:title","label":"Title","values":["Kinetic modelling of eletrospray systems using particle in cell method"]}]}],"canonical_facts":{"dc:contributor":["Levin, Deborah"],"dc:creator":["Budaraju, Siddharth"],"dc:date":["2022-04-29T21:34:00Z","2021-12","2021-07-21"],"dc:description":["Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2022-04-06 without embargo terms","The student, Siddharth Budaraju, accepted the attached license on 2021-07-20 at 13:59.","The student, Siddharth Budaraju, submitted this Thesis for approval on 2021-07-20 at 13:59.","This Thesis was approved for publication on 2021-07-21 at 13:45.","DSpace SAF Submission Ingestion Package generated from Vireo submission #17028 on 2022-04-06 at 17:08:25","Made available in DSpace on 2022-04-29T21:34:00Z (GMT). No. of bitstreams: 2 BUDARAJU-THESIS-2021.pdf: 2395338 bytes, checksum: 405e5579b61198fcb3afbf2bb503dd17 (MD5) LICENSE.txt: 4215 bytes, checksum: 14fbb0e32e8859b1003e7829f747b467 (MD5) Previous issue date: 2021-07-21","Electrospray propulsion facilitating ionic liquids is a recent booming application used by satellites applications for micro-thrust purposes. With the benefit of numerical methods, it is possible to model the expansion of the charged ions emanating from the ionic liquid. Particle-in-cell (PIC) approach is one such numerical method that can be used for high-fidelity plasma modelling, where individual charged particles in a Lagrangian frame are tracked continuously, while the density and currents are computed on Eulerian mesh points. In this thesis, the PIC technique was used to model the plasma plume expansion for micrometers and millimeter domains. The number density and timestep used in the simulations for the millimeter domain cases, calculated from the inlet area, were 7.3 x 10^(18) #/m^3 and 4.5 x 10^( −12) s. The plume characteristics showed striations that formed due to the large radial electric fields generated near the emitter inlet. To resolve the electric field better, an electric field correction term was implemented, where the field was redefined with the first order gradient term along with the standard centroid field value of each cell. The domain was then refined into constant, linear and exponential grids to study the influence of the refinement near the emitter region on the striations forming in the domain. The correction implementation was found to benefit in reducing the striations and showed maximum significant for constant refinement grid case, where the divergence gap formed near the acceleration region decreased greatly. The linear case showed slight improvement, followed by the exponential case having the finest grid near the emitter inlet showed no significant change with correction implementation."],"dc:format":["application/pdf"],"dc:identifier":["http://hdl.handle.net/2142/113793"],"dc:language":["en","eng"],"dc:rights":["Copyright 2021 Budaraju Siddharth"],"dc:subject":["Electrospray propulsion","Particle-in-cell approach","Lagrangian frame","Eulerian mesh"],"dc:title":["Kinetic modelling of eletrospray systems using particle in cell method"],"dc:type":["text"],"thesis:degree_discipline":["Aerospace Engineering"],"thesis:degree_level":["Thesis"],"thesis:degree_name":["M.S."],"thesis:institution_name":["University of Illinois at Urbana-Champaign"]},"updated_at":"2026-07-22T22:24:53Z"}