• Asymmetric cellular bi-stability in the gap between tandem cylinders 

      Aasland, Tale Egeberg; Pettersen, Bjørnar; Andersson, Helge; Jiang, Fengjian (Peer reviewed; Journal article, 2023)
      In the gap region of tandem cylinders, within the reattachment regime, bi-stability is seen to be cellular. Direct numerical simulations at a Reynolds number of 500, and a gap ratio of 3.0, show that shedding of gap vortices ...
    • Flow Around Curved Tandem Cylinders 

      Aasland, Tale Egeberg; Pettersen, Bjørnar; Andersson, Helge Ingolf; Jiang, Fengjian (Peer reviewed; Journal article, 2022)
      The flow around curved tandem cylinders of equal diameter has been investigated for the first time, by means of direct numerical simulations. A convex configuration was used. The nominal gap ratio was L/D = 3.0 and a ...
    • Flow topology in the gap and wake of convex curved tandem cylinders 

      Aasland, Tale Egeberg; Pettersen, Bjørnar; Andersson, Helge; Jiang, Fengjian (Journal article; Peer reviewed, 2023)
      Flow around curved tandem cylinders in the convex configuration has been studied by means of direct numerical simulations, for a Reynolds number of 500 and a nominal gap ratio of 3.0. Spanwise variation of flow regimes, ...
    • Numerical studies of viscous flow around straight and curved tandem cylinders 

      Aasland, Tale Egeberg (Doctoral theses at NTNU;2024:81, Doctoral thesis, 2024)
      The physics of flow around straight and curved cylinders in tandem is investigated by means of direct numerical simulations (DNS), for transitional and turbulent flow regimes. For straight tandem cylinders in the reattachment ...
    • Revisiting the reattachment regime: a closer look at tandem cylinder flow at Re=10000 

      Aasland, Tale Egeberg; Pettersen, Bjørnar; Andersson, Helge Ingolf; Jiang, Fengjian (Peer reviewed; Journal article, 2022)
      Tandem cylinder flow comprises several different flow regimes. Within the reattachment regime, the development of the gap shear layers is of utmost importance to the flow, but has received little attention so far. Through ...