Browsing NTNU Open by Author "Sannan, Sigurd"
Now showing items 1-7 of 7
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A Dimensional-Decomposition Approach for Stochastic Scale-Resolving Simulations of Turbulent Reacting Flows
Grøvdal, Fredrik (Doctoral theses at NTNU;2018:399, Doctoral thesis, 2018)High-fidelity and reliable numerical design tools are main keys to the development of novel gas turbines for hydrogen-rich fuels. However, state-of-the-art simulation tools for the most part only give a bulk approximation ... -
A framework for mixing-reaction closure with the Linear Eddy Model
Weydahl, Torleif (Doktoravhandlinger ved NTNU, 1503-8181; 2010:53, Doctoral thesis, 2010)This thesis presents a novel framework for mixing-reaction closure build on the Linear Eddy Model by Kerstein (1991B). The development of the modeling concept has been motivated by the need for better predictive tools for ... -
A Parametric Study of LEM3D Based on Comparison with a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-Flow
Grøvdal, Fredrik; Sannan, Sigurd; Chen, Jyh-Yuan; Løvås, Terese (Journal article; Peer reviewed, 2019)A novel model, the hybrid RANS-LEM3D model, is applied to a lifted turbulent N 2 diluted hydrogen jet flame in a vitiated co-flow of hot products from lean H 2 /air combustion. In the present modeling approach, mean-flow ... -
Application of the Linear Eddy Model - A Study of Differential Diffusion in Turbulent Hydrogen-Rich Jets
Bjørdalsbakke, Nikolai Lid (Master thesis, 2018)Differential diffusion effects in turbulent reactive and non-reactive problems based on hydrogen-rich fuels are not yet fully investigated. Through use of a Fortran implementa-tion of the Linear Eddy Model (LEM) ... -
Dimensional Decomposition of Turbulent Reacting Flows
Grøvdal, Fredrik; Sannan, Sigurd; Meraner, Christoph; Li, Tian; Løvås, Terese (Peer reviewed; Journal article, 2020)A dimensional-decomposition approach, decomposing 3D into 3×1D for turbulent (reacting) flows are motivated, discussed and investigated. In the three-dimensional Linear Eddy Model (LEM3D), three orthogonally intersecting ... -
Potential for Saccharina latissima Flour as a Functional Ingredient in the Baking Sector
Oprea, Oana Bianca; Tolstorebrov, Ignat; Claussen, Ingrid Camilla; Sannan, Sigurd; Apostol, Livia; Mosoiu, Claudia; Gaceu, Liviu (Journal article; Peer reviewed, 2023)The healthy “superfood” sector is currently quickly developing in Europe, and grocery stores are increasingly stocking macroalgae food supplements. Due to its high amount of protein, fiber, and minerals, numerous studies ... -
Three-dimensional Linear Eddy Modeling of a Turbulent Lifted Hydrogen Jet Flame in a Vitiated Co-flow
Grøvdal, Fredrik; Sannan, Sigurd; Chen, Jyh-Yuan; Kerstein, Alan R; Løvås, Terese (Journal article; Peer reviewed, 2018)A new methodology for modeling and simulation of reactive flows is reported in which a 3D formulation of the Linear Eddy Model (LEM3D) is used as a post-processing tool for an initial RANS simulation. In this hybrid approach, ...