dc.contributor.author | Khalili, Mohammadtaghi | |
dc.contributor.author | Larsson, Martin | |
dc.contributor.author | Müller, Bernhard | |
dc.date.accessioned | 2019-12-16T15:13:00Z | |
dc.date.available | 2019-12-16T15:13:00Z | |
dc.date.created | 2019-01-10T20:42:57Z | |
dc.date.issued | 2019 | |
dc.identifier.citation | International Journal for Numerical Methods in Fluids. 2019, 89 (7), 256-282. | nb_NO |
dc.identifier.issn | 0271-2091 | |
dc.identifier.uri | http://hdl.handle.net/11250/2633488 | |
dc.description.abstract | A high‐order immersed boundary method is devised for the compressible Navier‐Stokes equations by employing high‐order summation‐by‐parts difference operators. The immersed boundaries are treated as sharp interfaces by enforcing the solid wall boundary conditions via flow variables at ghost points. Two different interpolation schemes are tested to compute values at the ghost points and a hybrid treatment is used. The first method provides the bilinearly interpolated flow variables at the image points of the corresponding ghost points and the second method applies the boundary condition at the immersed boundary by using the weighted least squares method with high‐order polynomials. The approach is verified and validated for compressible flow past a circular cylinder at moderate Reynolds numbers. The tonal sound generated by vortex shedding from a circular cylinder is also investigated. In order to demonstrate the capability of the solver to handle complex geometries in practical cases, flow in a cross‐section of a human upper airway is simulated. | nb_NO |
dc.language.iso | eng | nb_NO |
dc.publisher | Wiley | nb_NO |
dc.relation.uri | https://onlinelibrary.wiley.com/doi/epdf/10.1002/fld.4696 | |
dc.title | High-order ghost-point immersed boundary method for viscous compressible flows based on summation-by-parts operators | nb_NO |
dc.type | Journal article | nb_NO |
dc.type | Peer reviewed | nb_NO |
dc.description.version | acceptedVersion | nb_NO |
dc.source.pagenumber | 256-282 | nb_NO |
dc.source.volume | 89 | nb_NO |
dc.source.journal | International Journal for Numerical Methods in Fluids | nb_NO |
dc.source.issue | 7 | nb_NO |
dc.identifier.doi | 10.1002/fld.4696 | |
dc.identifier.cristin | 1654502 | |
dc.relation.project | Norges forskningsråd: 231741 | nb_NO |
dc.description.localcode | This is the peer reviewed version of an article, which has been published in final form at [https://doi.org/10.1002/fld.4696]. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Self-Archiving | nb_NO |
cristin.unitcode | 194,64,25,0 | |
cristin.unitname | Institutt for energi- og prosessteknikk | |
cristin.ispublished | true | |
cristin.qualitycode | 1 | |