Browsing by Author "Piomelli, Ugo"

Now showing items 1-5 of 5

    • Large-eddy simulations of the flow on an aerofoil with leading-edge imperfections 

      Kumar, Vishal; Piomelli, Ugo; Lehmkuhl Barba, Oriol (Taylor and Francis, 2021)
      Article
      Open Access
      We performed large-eddy simulations of the flow over an aerofoil to understand the effects of leading-edge roughness designed to mimic ice accretion. The roughness elements protrude outside the boundary layer, which, near ...

    • LES-based study of the roughness effects on the wake of a circular cylinder from subcritical to transcritical Reynolds numbers 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell Pol, Ricard; Oliva Llena, Asensio (2017-10-27)
      Article
      Open Access
      This paper investigates the effects of surface roughness on the flow past a circular cylinder at subcritical to transcritical Reynolds numbers. Large eddy simulations of the flow for sand grain roughness of size k/D = 0.02 ...

    • LES-based Study of the Roughness Effects on the Wake of a Circular Cylinder from Subcritical to Transcritical Reynolds Numbers 

      Rodriguez, Ivette; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva, Jorge; Borrell, Ricard; Oliva, Assensi (Springer Verlag, 2017-12)
      Article
      Open Access
      This paper investigates the effects of surface roughness on the flow past a circular cylinder at subcritical to transcritical Reynolds numbers. Large eddy simulations of the flow for sand grain roughness of size k/D = 0.02 ...

    • Numerical simulation of roughness effects on the flow past a circular cylinder 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell, Ricard; Oliva Llena, Asensio (Institute of Physics (IOP), 2016)
      Conference report
      Open Access
      In the present work large eddy simulations of the flow past a rough cylinder are performed at a Reynolds number of Re = 4.2 × 105 and an equivalent sand-grain surface roughness height ks = 0.02D. In order to determine the ...

    • The effects of roughness on the boundary layer development of a circular cylinder 

      Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Piomelli, Ugo; Chiva Segura, Jorge; Borrell, Ricard; Oliva Llena, Asensio (European Research Community on Flow, Turbulence, and Conbustion (ERCOFTAC), 2017)
      Conference report
      Restricted access - publisher's policy
      This paper focuses on the effects of surface roughness in the flow past a circular cylinder at different Reynolds numbers. Large eddy simulations of the flow, from subcritical to transcritical Reynolds numbers and at ...