• Article  

      Flow instabilities of Herschel-Bulkley fluids 

      Alexandrou, Andreas N.; Menn, P. Le; Georgiou, G.; Entov, V. (2003)
      We investigate numerically the interactions of two-dimensional jets of Bingham plastic and Herschel-Bulkley fluids with a vertical surface at a distance from the die exit. This problem simulates the early stages of filling ...
    • Article  

      Solution of the square lid-driven cavity flow of a Bingham plastic using the finite volume method 

      Syrakos, A.; Georgiou, G. C.; Alexandrou, Andreas N. (2013)
      We investigate the performance of the finite volume method in solving viscoplastic flows. The creeping square lid-driven cavity flow of a Bingham plastic is chosen as the test case and the constitutive equation is regularised ...
    • Article  

      Wall shear rates in circular couette flow of a Herschel-Bulkley fluid 

      Chatzimina, M.; Georgiou, G.; Alexandrou, Andreas N. (2009)
      The objective of this work is to study quantitatively the errors introduced by the standard Newtonian and power-law assumptions used in the determination of the material properties of viscoplastic fluids from circular ...