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This paper presents the development of a density-based solver suitable forcavitating flows in the OpenFOAM framework. In this solver, the thermodynamicequilibrium mixture approach is adopted to model the presence of and the phasetransition between liquid and vapor phases. Using this approach, two cavitationmodels are implemented in a separate library, although more cavitation modelscan be easily added. The two are a temperature-dependent cavitation model and abarotropic cavitation model developed by Egerer et al. (2014). One of the mainadvantages of the solver is that it considers the compressibility of allphases. This feature combined with using the density-based approach enablescapturing shock-waves created upon the collapse of cavitating structures whichare known to be one of the main mechanisms of cavitation erosion. Theimplementation also includes a post-processing tool which detects aggressivecollapse-induced shock-waves based on the method proposed by Mihatsch et al.(2015) and identifies the areas with a high risk of cavitation erosion. Inorder to validate the implemented solver and post-processing tool, four caseswith progressively increasing complexity are simulated. The results fromsimulation of these cases are compared with analytical solution, similarnumerical simulations as well as available experimental results. All of thesecomparisons show that the numerical results obtained by the implemented solveragree well with the reference analytical solution and numerical andexperimental results.

dbnsCavitatingFoam: A density-based solver with equilibrium cavitation models in the OpenFOAM framework