dc.contributor.author | Jankevičiūtė, Gerda | |
dc.contributor.author | Čiegis, Raimondas | |
dc.contributor.author | Tumanova, Natalija | |
dc.contributor.author | Bugajev, Andrej | |
dc.date.accessioned | 2023-09-18T16:59:39Z | |
dc.date.available | 2023-09-18T16:59:39Z | |
dc.date.issued | 2016 | |
dc.identifier.uri | https://etalpykla.vilniustech.lt/handle/123456789/118613 | |
dc.description.abstract | The aim of this project is to develop a virtual modelling tool which can be used to construct optimal design of power transmission lines and cables. They should meet the latest power transmission network technical and economical requirements. The mathematical model is based on a general heat conduction equation describing the diffusion, convection and radiation processes. We take into account a linear dependence of the resistance on temperature. The velocity of convective transport of the heat in air regions is obtained by solving a coupled thermoconvection problem including the heat conduction problem and a standard Navier-Stokes model of the flow in air. The changes of material coefficients in soil due to influence of heating are taken by solving a simplified mass balance equation for flows in porous media. The FVM is used to solve the obtained system of differential equations. Discretization of the domain is done by applying “aCute” mesh generator, which is a modification of the well-known Triangle mesh generator. The discrete schemes are implemented by using the OpenFOAM tool. Parallel versions of basic algorithms are also investigated. Results of computational experiments of simulation of real industrial underground cables are presented. | eng |
dc.format | PDF | |
dc.format.extent | p. 1111-1119 | |
dc.format.medium | tekstas / txt | |
dc.language.iso | eng | |
dc.relation.ispartofseries | Mathematics in industry : book series vol. 22 1612-3956 2198-3283 | |
dc.relation.isreferencedby | SpringerLink | |
dc.source.uri | https://doi.org/10.1007/978-3-319-23413-7_154 | |
dc.subject | FM03 - Fizinių, technologinių ir ekonominių procesų matematiniai modeliai ir metodai / Mathematical models and methods of physical, technological and economic processes | |
dc.title | Numerical simulation of heat transfer in underground electrical cables | |
dc.type | Kitos knygos dalis / A part of other book | |
dcterms.references | 12 | |
dc.type.pubtype | Y7 - Kitos knygos dalis / A part of other book | |
dc.contributor.institution | Vilniaus Gedimino technikos universitetas | |
dc.contributor.faculty | Fundamentinių mokslų fakultetas / Faculty of Fundamental Sciences | |
dc.subject.researchfield | N 001 - Matematika / Mathematics | |
dc.subject.researchfield | T 001 - Elektros ir elektronikos inžinerija / Electrical and electronic engineering | |
dc.subject.ltspecializations | L102 - Energetika ir tvari aplinka / Energy and a sustainable environment | |
dc.subject.en | Heat transfer | |
dc.subject.en | Optimal design | |
dc.subject.en | Power transmission lines and cables | |
dcterms.sourcetitle | Progress in industrial mathematics at ECMI 2014 : Conference proceedings: European Consortium for Mathematics in Industry | |
dc.publisher.name | Springer | |
dc.publisher.city | Cham | |
dc.identifier.doi | 10.1007/978-3-319-23413-7_154 | |
dc.identifier.elaba | 24092357 | |