dc.contributor.author | Helgedagsrud, Tore Andreas | |
dc.contributor.author | Akkerman, Ido | |
dc.contributor.author | Bazilevs, Yuri | |
dc.contributor.author | Mathisen, Kjell Magne | |
dc.contributor.author | Øiseth, Ole | |
dc.date.accessioned | 2019-04-12T06:52:27Z | |
dc.date.available | 2019-04-12T06:52:27Z | |
dc.date.created | 2019-02-25T09:15:11Z | |
dc.date.issued | 2019 | |
dc.identifier.issn | 0733-9399 | |
dc.identifier.uri | http://hdl.handle.net/11250/2594351 | |
dc.description.abstract | Computational fluid dynamics (CFD) and fluid–structure interaction (FSI) are growing disciplines in the aeroelastic analysis and design of long-span bridges, which, with their bluff body characteristics, offer major challenges to efficient simulation. In this paper, we employ isogeometric analysis (IGA) based on nonuniform rational B-splines (NURBS) to numerically simulate turbulent flows over moving bridge sections in three dimensions (3D). Stationary and dynamic analyses of two bridge sections, an idealized rectangular shape with aspect ratio 1∶10 and a 1∶50-scale model of the Hardanger bridge, were performed. Wind tunnel experiments and comparative finite-element (FE) analyses of the same sections were also conducted. Studies on the convergence, static dependencies on the angle of attack, and self-excited forces in terms of the aerodynamic derivatives show that IGA successfully captures the bluff-body flow characteristics and exhibits superior per-degree-of-freedom accuracy compared to the more traditional lower-order FE discretizations. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | American Society of Civil Engineers | nb_NO |
dc.title | Isogeometric Modeling and Experimental Investigation of Moving-Domain Bridge Aerodynamics | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.volume | 145 | nb_NO |
dc.source.journal | Journal of engineering mechanics | nb_NO |
dc.source.issue | 5 | nb_NO |
dc.identifier.doi | 10.1061/(ASCE)EM.1943- 7889.0001601 | |
dc.identifier.cristin | 1680264 | |
dc.description.localcode | ©2019 American Society of Civil Engineers. Link to published version: https://doi.org/10.1061/(ASCE)EM.1943-7889.0001601 | nb_NO |
cristin.unitcode | 194,64,45,0 | |
cristin.unitname | Institutt for konstruksjonsteknikk | |
cristin.ispublished | true | |
cristin.fulltext | postprint | |
cristin.qualitycode | 1 | |