Hydrodynamic optimization using CFD methodologies with
open-source software

Kourtis, Anastasios; Κούρτης, Αναστάσιος

dc.contributor.author	Kourtis, Anastasios	en
dc.contributor.author	Κούρτης, Αναστάσιος	el
dc.date.accessioned	2023-12-11T10:16:20Z
dc.date.available	2023-12-11T10:16:20Z
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/58431
dc.identifier.uri	http://dx.doi.org/10.26240/heal.ntua.26127
dc.rights	Default License
dc.subject	Υπολογιστική Ρευστοδυναμική	el
dc.subject	Αντίσταση σε ήρεμο νερό	el
dc.subject	Υδροδυναμική βελτιστοποίηση	el
dc.subject	Ανάπτυξη μεθοδολογίας βελτιστοποίησης	el
dc.subject	Λογισμικά ανοιχτού κώδικα	el
dc.subject	CFD	en
dc.subject	KCS	en
dc.subject	OpenFOAM	en
dc.subject	OpenMDAO	en
dc.subject	Free-Form Deformation	en
dc.subject	Simulation based design	en
dc.title	Hydrodynamic optimization using CFD methodologies with open-source software	en
heal.type	bachelorThesis
heal.classification	Marine engineering	en
heal.language	en
heal.access	free
heal.recordProvider	ntua	el
heal.publicationDate	2023-07
heal.abstract	The envision of the IMO for the decarbonization of the maritime industry has shifted the research efforts into more efficient designs and innovative solutions. This diploma thesis, facilitates this envision by examining the coupling of the open-source softwares OpenFOAM and OpenMDAO, for the application of trim optimization, in regards to minimizing the calm water resistance. Optimizing the trim can have significant implications for various aspects of vessel performance, including fuel efficiency. Also, it prepares the ground for multidisciplinary design optimization by demonstrating the feasibility of the method and subsequently developing the basic framework. The open access KCS bare hull geometry was employed, for which the Reynolds Averaged Navier-Stokes equations were solved to acquire the calm water resistance, in the OpenFOAM environment. For the geometry handling, a custom script was developed in Python language, and the optimization model was implemented in OpenMDAO, which also managed the data passage between the softwares and the script. Finally, the analysis was extended by updating the existing framework to perform a trivial shape form optimization at the bulbous area. Overall, the results showed a decrease in the total resistance, as expected, validating the methodology.	en
heal.advisorName	Papadakis, George	en
heal.committeeMemberName	Zaraphonitis, George	en
heal.committeeMemberName	Grigoropoulos, Gregory	en
heal.academicPublisher	Εθνικό Μετσόβιο Πολυτεχνείο. Σχολή Ναυπηγών Μηχανολόγων Μηχανικών. Τομέας Ναυτικής και Θαλάσσιας Υδροδυναμικής	el
heal.academicPublisherID	ntua
heal.numberOfPages	68 σ.	el
heal.fullTextAvailability	false
heal.fullTextAvailability	false