Browsing SINTEF Open by Author "Holdahl, Runar"
Now showing items 1-6 of 6
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A Comprehensive Simulation Methodology for Fluid-Structure Interaction of Offshore Wind Turbines
Rasheed, Adil; Holdahl, Runar; Kvamsdal, Trond; Åkervik, Espen (Journal article; Peer reviewed, 2014)This paper gives an overview of a comprehensive simulation methodology for fluid-structure interaction (FSI) of offshore wind turbines that is being developed at the Applied Mathematics Department of SINTEF ICT. The ... -
GRIDDLER and VISTA with CGNS interface
Sørli, Karstein; Holdahl, Runar (Research report, 2006)This developer's and user's note has been written to help developers and users of GRIDDLER and VISTA to maintain and use their recent CGNS (CFD General Notation System) interface. The present note contains a description ... -
Implementation and comparison of three isogeometric Navier–Stokes solvers applied to simulation of flow past a fixed 2D NACA0012 airfoil at high Reynolds number
Nordanger, Knut; Holdahl, Runar; Kvarving, Arne Morten; Rasheed, Adil; Kvamsdal, Trond (Journal article; Peer reviewed, 2015)Implementation of three different Navier–Stokes solvers in an isogeometric finite element framework is presented in this paper. The three solvers Chorin projection method and Coupled formulation , both with the Spalart–Allmaras ... -
Isogeometric methods for CFD and FSI-simulation of flow around turbine blades
van Opstal, Timo Matteo; Fonn, Eivind; Holdahl, Runar; Kvamsdal, Trond; Kvarving, Arne Morten; Mathisen, Kjell Magne; Nordanger, Knut; Okstad, Knut Morten; Rasheed, Adil; Tabib, Mandar (Journal article; Peer reviewed, 2015)Coupled fluid-structure interaction simulations of wind turbines have traditionally been considered computationally too expensive to carry out. However, more powerful computers and better solution techniques based on ... -
Numerical benchmarking of fluid–structure interaction: An isogeometric finite element approach
Nordanger, Knut; Rasheed, Adil; Okstad, Knut Morten; Kvarving, Arne Morten; Holdahl, Runar; Kvamsdal, Trond (Journal article; Peer reviewed, 2016)In this paper we describe and evaluate an isogeometric finite element program, IFEM-FSI, for doing coupled fluid–structure interaction simulations. We investigate the role played by employing higher polynomial orders and ... -
Simulation of airflow past a 2D NACA0015 airfoil using an isogeometric incompressible Navier-Stokes solver with the Spalart-Allmaras turbulence model
Nordanger, Knut; Holdahl, Runar; Kvamsdal, Trond; Kvarving, Arne Morten; Rasheed, Adil (Journal article; Peer reviewed, 2015)The work presented in this paper concerns the efforts of conducting a computational fluid dynamics (CFD) simulation of air flow past a fixed 2D NACA0015 airfoil at high Reynolds number (Re=2.5×106Re=2.5×106) using an ...