Numerical prediction of erosion due to a cavitating jet

We numerically investigate the erosion potential of a cavitating liquid jet by means of high-resolution finite volume simulations. As thermodynamic model, we employ a barotropic equilibrium cavitation approach, embedded into a homogeneous mixture model. To resolve the effects of collapsing vapor structures and to estimate the erosion potential, full compressibility is considered. Two different operating points featuring different cavitation intensities are investigated and their erosion potential is estimated and compared. Different methods are used for this purpose, including collapse detection (Mihatsch et al., 2015), maximum pressure distribution on the wall, and a new method of generating numerical pit equivalents. The data of numerical pit equivalents is analyzed in detail and compared with experimental data from the literature. Furthermore, a comprehensive grid study for both operating points is presented.     «

We numerically investigate the erosion potential of a cavitating liquid jet by means of high-resolution finite volume simulations. As thermodynamic model, we employ a barotropic equilibrium cavitation approach, embedded into a homogeneous mixture model. To resolve the effects of collapsing vapor structures and to estimate the erosion potential, full compressibility is considered. Two different operating points featuring different cavitation intensities are investigated and their erosion potentia...     »

Funding text 1 We thank the Robert Bosch GmbH for providing the geometrical data of the considered setup and the thermodynamic properties of the test fluid. Further, we gratefully acknowledge the Gauss Centre for Supercomputing e.V. ( www.gauss-centre.eu ) for funding this project by providing computing time on the GCS Supercomputers SuperMUC and SuperMUC-NG at Leibniz Supercomputing Centre ( www.lrz.de ). All authors approved the version of the manuscript to be published. Funding text 2 We thank the Robert Bosch GmbH for providing the geometrical data of the considered setup and the thermodynamic properties of the test fluid. Further, we gratefully acknowledge the Gauss Centre for Supercomputing e.V. (www.gauss-centre.eu) for funding this project by providing computing time on the GCS Supercomputers SuperMUC and SuperMUC-NG at Leibniz Supercomputing Centre (www.lrz.de). All authors approved the version of the manuscript to be published.     «

Funding text 1 We thank the Robert Bosch GmbH for providing the geometrical data of the considered setup and the thermodynamic properties of the test fluid. Further, we gratefully acknowledge the Gauss Centre for Supercomputing e.V. ( www.gauss-centre.eu ) for funding this project by providing computing time on the GCS Supercomputers SuperMUC and SuperMUC-NG at Leibniz Supercomputing Centre ( www.lrz.de ). All authors approved the version of the manuscript to be published. Funding text 2 We t...     »