Blar i NTNU Open på forfatter "Challabotla, Niranjan Reddy"

Viser treff 1-4 av 4

    • A numerical study on vortex-induced vibrations and the effect of slurry density variations on fatigue of ocean mining risers 

      Thorsen, Mats Jørgen; Challabotla, Niranjan Reddy; Sævik, Svein; Nydal, Ole Jørgen (Journal article; Peer reviewed, 2019)
      Ocean mining emerges as a way of meeting future demands for valuable minerals. Risers conveying ore from the seabed to the surface must withstand large wave and current loads. In addition, vortex-induced vibrations (VIV) ...

    • Dynamics of disk-like particles in turbulent vertical channel flow 

      Yuan, Wenjun; Andersson, Helge Ingolf; Zhao, Lihao; Challabotla, Niranjan Reddy; Deng, Jianqiang (Journal article; Peer reviewed, 2017)
      The dynamical behavior of inertial disk-like particles in turbulent vertical channel flow is investigated by an Eulerian–Lagrangian point-particle approach. Gravity effects on distribution, translation, rotation and ...

    • Nonspherical particle suspensions in wall turbulence 

      Challabotla, Niranjan Reddy (Doctoral theses at NTNU;2016:302, Doctoral thesis, 2016)
      In the present PhD thesis, we investigate the dynamics of small non-spherical particles suspended in a fully developed turbulent channel flow. Non-spherical particles are approximated as axisymmetric spheroidal and triaxial ...

    • Unstable two phase flow in long vertical pipes 

      Ravnås, Morten (Master thesis, 2018)
      Flow instabilities can cause operational problems when transporting multiphase mixtures of oil and gas in offshore risers and pipelines. Several types of flow instabilities have been studied and are well documented. This ...