Two different approaches to cavitation modelling are investigated in the paper. With
the Euler-Euler approach vapour-volume fraction is computed based on a volume of fluid
method in combination with a simple mass-transfer model for cavitation. Using an Euler-
Lagrange approach, separate equations for bubble size and motion are solved for each of the
bubbles/nuclei. Computed bubbles are subsequently mapped to an Eulerian field to obtain
vapour-volume fraction of the Eulerian mixture field. Numerical results of a 2D hydrofoil
and a propeller flow demonstrate strong parameter dependency for the Euler-Euler approach.
Providing the correct (measured) initial bubble distribution, Euler-Lagrange techniques display
a fair amount of predictive accuracy as demonstrated for a 2D hydrofoil.