Development of a modal sub-structuring method : application to thermal simulations of LNG carriers
dc.contributor.author | Gaume, B. | en |
dc.contributor.author | Joly, F. | en |
dc.contributor.author | Quemener, O. | en |
dc.date.accessioned | 2017-08-28T07:08:34Z | |
dc.date.available | 2017-08-28T07:08:34Z | |
dc.date.issued | 2016 | en |
dc.description | Papers presented to the 12th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Costa de Sol, Spain on 11-13 July 2016. | en |
dc.description.abstract | In the context of simulations of coupled thermal enclosures, we present here a sub-structuring technique adapted to a reduced modal formulation. This technique consists in splitting the geometry into different zones. A modal model is then applied to each zone, and the coupling of the resulting models is performed via a thermal contact resistance. This technique allows the consideration of physical thermal resistances between different components of the geometry, but also the making of fictitious cuts within a continuous domain, when its large size makes it difficult to obtain the global reduced model. Applied to the simulation of a component of a LNG carrier, the use of a sub-structured model with 200 modes allows almost immediate resolution (around 1 second) for a maximum difference near 1 K and an average difference of the order of 0.2 K with respect to a conventional Lagrange finite elements model of shell type, which requires 40 times longer calculation. | |
dc.format.extent | 6 pages | en |
dc.format.medium | en | |
dc.identifier.uri | http://hdl.handle.net/2263/62060 | |
dc.language.iso | en | en |
dc.publisher | HEFAT | en |
dc.rights | University of Pretoria | en |
dc.subject | Modal sub-structuring method | en |
dc.subject | Thermal simulations | en |
dc.subject | LNG carriers | en |
dc.title | Development of a modal sub-structuring method : application to thermal simulations of LNG carriers | en |
dc.type | Presentation | en |
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