Blar i NTNU Open på forfatter "Solsvik, Jannike"
-
Numerical Implementation and Evaluation of a Set of Population Balance Breakage Closures
Skjervold, Vidar Torarin (Master thesis, 2016)The population balance equation (PBE) can be used to model multiphase processes, where one or more dispersed phases are distributed in a continuous medium. In such systems, the interfacial area is an important quantity, ... -
Numerical Study of Mass Transfer Limitations in a Bioreactor Operated in the Heterogeneous Flow Regime
Kure, Ida Kristine (Master thesis, 2017)With the increased focus on detaining a more environmental friendly industry, biological processes have been given more attention over the last years. Such a biological process is single cell protein (SCP) production, ... -
On the Solution of the Pellet- and Reactor Model for the Steam Methane Reforming Process Using the Methods of Weighted Residuals
Tangen, Stian (Master thesis, 2012)The purpose of the thesis is to prove that the mole based formulation of a pellet model simulating the steam methane reforming reaction is identical to the novel mass based formulation. To prove this, the numerical methods ... -
Optimization of the Numerical Solution of the Population Balance Equation
Engh, Mathias (Master thesis, 2016)The population balance equation (PBE) is a frequently applied equation in the modeling of multiphase reactors. Accurate solution of the PBE is important in order to have a precise estimate of the interfacial area, which ... -
Proper orthogonal decomposition modal analysis in a baffled stirred tank: a base tool for the study of structures
Arosemena Pitty, Arturo Antonio; Solsvik, Jannike (Peer reviewed; Journal article, 2023)Proper orthogonal decomposition (POD) is applied to three-dimensional (3-D) velocity fields collected from large-eddy simulations (LES) of a baffled stirred tank. In the LES, the tank operates with a Rushton-type impeller ... -
Single Drop Breakage in Turbulent Flow: Statistical Data Analysis
Herø, Eirik Helno; La Forgia, Nicolas; Solsvik, Jannike; Jakobsen, Hugo Atle (Peer reviewed; Journal article, 2020)To improve breakage models in the population balance framework, single octanol droplet experiments have been performed in a channel flow and recorded by high-speed camera. The study investigates impact of mother drop size ... -
Steady Laminar Flow over a Backwards Facing Step solved by the Finite Volume Method
Klavenes, Anita (Master thesis, 2020)Laminær, stasjonær strømning uten varmetransport i en rett kanal og i en kanal utvidet over et trinn (backwards facing step) har blitt løst ved bruk av Finite Volume Method. SIMPLE-algoritmen og Upwind Differencing ble ... -
Turbulent channel flow of generalized Newtonian fluids at a low Reynolds number
Arosemena, Arturo; Andersson, Helge Ingolf; Solsvik, Jannike (Peer reviewed; Journal article, 2021)Several studies concerning the turbulent pipe flow of generalized Newtonian (GN) fluids may be found in the literature, but not for channel flow, although that has been extensively studied for other types of non-Newtonian ... -
Turbulent flows of generalized Newtonian fluids: mechanics and structural coherence
Arosemena, Arturo A. (Doctoral theses at NTNU;2022:276, Doctoral thesis, 2022)Most flows are turbulent in nature, yet fluids exhibit a plethora of inherent responses to applied stress. Fluids that respond in a linear manner, such as water and air, are labelled as Newtonian, whereas the majority of ... -
Unifying Transport Phenomena and Thermodynamic Equilibrium Models: A theoretical study of current and novel equilibrium based models in transport phenomena
Øyen, Sindre Bakke (Doctoral theses at NTNU;2023:87, Doctoral thesis, 2023)Transport phenomena are based on the conservation of mass, momentum, and energy, and provide equations that give insight into the motion of fluids, the driving force behind this motion, and the dissipation of such driving ... -
Velocity--vorticity correlations and the four-layer regime in turbulent channel flow of generalized Newtonian fluids
Arosemena, Arturo; Solsvik, Jannike (Peer reviewed; Journal article, 2022)The data of Arosemena et al. (2021), consisting of turbulent channel flow simulations of generalized Newtonian (GN) fluids, are considered to study the effects of shear-dependent rheology on the nonzero velocity–vorticity ...