Exploració per autor "Àvila Cañellas, Marc"

Ara es mostren els items 1-6 de 6

    • Conductive and convective heat transfer in fluid flows between differentially heated and rotating cylinders 

      López, José M.; Marqués Truyol, Francisco; Àvila Cañellas, Marc (2015-11-01)
      Article
      Accés obert
      The flow of fluid confined between a heated rotating cylinder and a cooled stationary cylinder is a canonical experiment for the study of heat transfer in engineering. The theoretical treatment of this system is greatly ...

    • Crossflow instability of finite Bödewadt flows: transients and spiral waves 

      López, Juan A.; Marqués Truyol, Francisco; Rubio, Antonio M.; Àvila Cañellas, Marc (2009-11)
      Article
      Accés obert
      The flow in an enclosed rotating cylinder with a stationary lower end wall is investigated numerically. For fast rotation rates, the flow in the interior is primarily in the azimuthal direction, with an angular momentum ...

    • Emergence of spatio-temporal dynamics from exact coherent solutions in pipe flow 

      Ritter, Paul; Mellibovsky Elstein, Fernando; Àvila Cañellas, Marc (2016-08-12)
      Article
      Accés obert
      Turbulent-laminar patterns are ubiquitous near transition in wall-bounded shear flows. Despite recent progress in describing their dynamics in analogy to non-equilibrium phase transitions, there is no theory explaining ...

    • Instability mechanisms and transition scenarios of spiral turbulence in Taylor-Couette flow 

      Meseguer Serrano, Álvaro; Mellibovsky Elstein, Fernando; Àvila Cañellas, Marc; Marqués Truyol, Francisco (2009-10)
      Article
      Accés obert
      Alternating laminar and turbulent helical bands appearing in shear flows between counterrotating cylinders are accurately computed and the near-wall instability phenomena responsible for their generation identified for the ...

    • Shear instabilities in Taylor-Couette flow 

      Meseguer Serrano, Álvaro; Mellibovsky Elstein, Fernando; Marqués Truyol, Francisco; Àvila Cañellas, Marc (Springer, 2009-09-09)
      Comunicació de congrés
      Accés restringit per política de l'editorial
      Subcritical instabilities in small gap Taylor-Couette (TCF) problem are studied numerically when both cylinders rotate in opposite directions. The computations are carried out for a radius ratio A first exploration is ...

    • Streamwise-localized solutions at the onset of turbulence in pipe flow 

      Àvila Cañellas, Marc; Mellibovsky Elstein, Fernando; Roland, N.; Hof, Björn (2013-05)
      Article
      Accés obert
      Although the equations governing fluid flow are well known, there are no analytical expressions that describe the complexity of turbulent motion. A recent proposition is that in analogy to low dimensional chaotic systems, ...