Now showing items 21-32 of 32

    • Phase-Field Models for Two-Phase Flows Using the Least-Squares Method 

      Park, Keunsoo (Doctoral theses at NTNU;2017:299, Doctoral thesis, 2017)
      The correct representation of the interface dynamics in two–phase flows plays an important role in the understanding of multiphase flow phenomena. There are many numerical methods available to describe the interface dynamics, ...
    • A redefined energy functional to prevent mass loss in phase-field methods 

      Kwakkel, Marcel; Fernandino, Maria; Dorao, Carlos Alberto (Peer reviewed; Journal article, 2020)
      Phase-field modeling has gained considerable attention for the study of two-phase systems. The method consists of introducing a field that can represent the state of matter or the atomic species concentration. In this way, ...
    • Simple and general correlation for heat transfer during flow condensation inside plain pipes 

      Dorao, Carlos Alberto; Fernandino, Maria (Journal article; Peer reviewed, 2018)
      This work proposes a new general and simple model to determine the local flow condensation heat transfer coefficient inside plain pipes. The model considers two regimes corresponding to high mass fluxes and/or high ...
    • Study of mist flow inside a vane pack geometry 

      Carlson, Fredrik; Talseth, Mauritz-Arne Olaisen (Master thesis, 2009)
      Vane pack demisters in the industry operate with natural gas at pressures up to 100 bara. A new vane pack has been compared with the traditional one used by the industry. The vane packs have been investigated through ...
    • Surface waves modified by subsurface shear currents 

      Smeltzer, Benjamin K. (Doctoral theses at NTNU;2019:389, Doctoral thesis, 2019)
      This thesis presents work studying water waves propagating atop background shear currents. A growing body of research, to which this thesis contributes, indicates that accounting for the effects of shear currents are ...
    • Thermal two-phase flow with a phase-field method 

      Park, Keunsoo; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)
      Phase field methods have become of great interest for the simulation of droplet and bubble dynamics, moving free interfaces and more recently phase change phenomena. One example is the Navier–Stokes–Korteweg (NSK) equations. ...
    • Two-phase Flow Instabilities during Flow Boiling and Control of Wettability by Micro-structured Surfaces 

      Park, Il Woong (Doctoral theses at NTNU;2018:245, Doctoral thesis, 2018)
      Boiling heat transfer is of relevance in a variety of applications in power and process industries. In spite of the vast research performed in the last decades, fundamental questions about mechanisms related to the boiling ...
    • Visualization of condensation over micro-structured surfaces 

      Ciria Aylagas, Raul (Master thesis, 2016)
      Water condensation is an ubiquitous phenomenon that happens widely in nature. It is also used in industrial applications such as water harvesting, desalination systems, thermal management and power generation. Filmwise ...
    • Water droplet dynamics on a heated nanowire surface 

      Auliano, Manuel; Auliano, Damiano; Fernandino, Maria; Zhang, Peng; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)
      When a liquid droplet is deposited onto a heated surface, evaporation occurs. If the temperature of the surface is sufficiently high, bubbles are released from activated nucleation sites, making the heat transfer more ...
    • Water Droplets Settling in Crude Oil: Effect of Neighbouring Droplets and Temperature 

      Sjursen, Kamilla Hauknes (Master thesis, 2014)
      Gravity separation is a critical operation in oil and gas processing, both in terms of attaining specifications for finished products and to protect equipment downstream of the gravity separator. Liquid-liquid gravity ...
    • Water-repellent surfaces consisting of nanowires on micro-pyramidal structures 

      Zhang, Wenjing; Ding, Wenwu; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2019)
      Super-repellent surfaces are relevant for several practical applications, such as water collection and self-cleaning and anti-icing surfaces. However, designing surfaces that can maintain their super-repellency when the ...
    • Wetting State Transitions over Hierarchical Conical Microstructures 

      Park, Il Woong; Fernandino, Maria; Dorao, Carlos Alberto (Journal article; Peer reviewed, 2018)
      Advancing in a better understanding of the physics of wetting requires to be able to develop surfaces with well‐controlled roughness by controlling the microstructure morphology. In this study, patterned truncated cones ...