Mathematical Model of a Constructal Coanda Effect Nozzle
This paper analyses the ACHEON Coanda effect nozzle for aircraft propulsion, based on the dynamic equilibrium of two jet streams. The ACHEON concept, and, in particular, the HOMER nozzle, which is its main component, are presented, together with the literature milestones from which the idea original...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Isfahan University of Technology
2016-01-01
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| Series: | Journal of Applied Fluid Mechanics |
| Subjects: | |
| Online Access: | http://jafmonline.net/JournalArchive/download?file_ID=41384&issue_ID=237 |
| _version_ | 1818040346763853824 |
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| author | Michele Trancossi Jill Stewart Maharshi Subash Diego Angeli |
| author_facet | Michele Trancossi Jill Stewart Maharshi Subash Diego Angeli |
| author_sort | Michele Trancossi |
| collection | DOAJ |
| description | This paper analyses the ACHEON Coanda effect nozzle for aircraft propulsion, based on the dynamic equilibrium of two jet streams. The ACHEON concept, and, in particular, the HOMER nozzle, which is its main component, are presented, together with the literature milestones from which the idea originally stems. A sub-system analysis inspired by the principles of Constructal Theory is presented for the current architecture. A mathematical model of a 2D case of the system is developed, focusing on the combined effect of the mixing of the two streams and the Coanda adhesion over a convex surface. A validation of the model is also reported, based on 2D CFD analyses, under the hypothesis of incompressible flow. Results highlight that, in spite of its relative simplicity, the model produces accurate results. |
| first_indexed | 2024-12-10T08:13:04Z |
| format | Article |
| id | doaj.art-fd7a9b58fedb45cca9cdf201598a46cf |
| institution | Directory Open Access Journal |
| issn | 1735-3572 |
| language | English |
| last_indexed | 2024-12-10T08:13:04Z |
| publishDate | 2016-01-01 |
| publisher | Isfahan University of Technology |
| record_format | Article |
| series | Journal of Applied Fluid Mechanics |
| spelling | doaj.art-fd7a9b58fedb45cca9cdf201598a46cf2022-12-22T01:56:32ZengIsfahan University of TechnologyJournal of Applied Fluid Mechanics1735-35722016-01-019628132822.Mathematical Model of a Constructal Coanda Effect NozzleMichele Trancossi0Jill Stewart1Maharshi Subash2Diego Angeli3Sheffield Hallam UniversitySheffield Hallam UniversityUniversità di Modena e Reggio EmiliaUniversità di Modena e Reggio EmiliaThis paper analyses the ACHEON Coanda effect nozzle for aircraft propulsion, based on the dynamic equilibrium of two jet streams. The ACHEON concept, and, in particular, the HOMER nozzle, which is its main component, are presented, together with the literature milestones from which the idea originally stems. A sub-system analysis inspired by the principles of Constructal Theory is presented for the current architecture. A mathematical model of a 2D case of the system is developed, focusing on the combined effect of the mixing of the two streams and the Coanda adhesion over a convex surface. A validation of the model is also reported, based on 2D CFD analyses, under the hypothesis of incompressible flow. Results highlight that, in spite of its relative simplicity, the model produces accurate results.http://jafmonline.net/JournalArchive/download?file_ID=41384&issue_ID=237Coanda effect; Fluid dynamic adhesion; Dual stream; Mathematical model; Constructal law. |
| spellingShingle | Michele Trancossi Jill Stewart Maharshi Subash Diego Angeli Mathematical Model of a Constructal Coanda Effect Nozzle Journal of Applied Fluid Mechanics Coanda effect; Fluid dynamic adhesion; Dual stream; Mathematical model; Constructal law. |
| title | Mathematical Model of a Constructal Coanda Effect Nozzle |
| title_full | Mathematical Model of a Constructal Coanda Effect Nozzle |
| title_fullStr | Mathematical Model of a Constructal Coanda Effect Nozzle |
| title_full_unstemmed | Mathematical Model of a Constructal Coanda Effect Nozzle |
| title_short | Mathematical Model of a Constructal Coanda Effect Nozzle |
| title_sort | mathematical model of a constructal coanda effect nozzle |
| topic | Coanda effect; Fluid dynamic adhesion; Dual stream; Mathematical model; Constructal law. |
| url | http://jafmonline.net/JournalArchive/download?file_ID=41384&issue_ID=237 |
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