Over the past two decades Dynaflow engineers and scientists have contributed significantly to the scientific community’s knowledge of cavitation and bubble dynamics in ship propulsion. This is reflected in extensive journal publications on these subjects. We have developed a wide range of numerical methods, including modeling of cavitation on propellers, one-way and two-way bubble/flow interaction schemes, spherical and non-spherical bubble deformation models, boundary and vortex element simulation methods, and Navier-Stokes equation solvers. We have also used our experimental facilities to validate the numerical simulations, and to study cavitation erosion and materials response to cavitation. Based on our above experiences, we can conduct numerical and experimental studies including:

  • Propeller cavitation problems
  • Cavitation inception
  • Multi-bubble and cloud cavitation
  • Cavitation erosion and erosion resistance of materials
  • Acoustics as modified by bubbles
  • Bubbly ship wakes
  • Bubble Augmented Waterjet Propulsion

Cavitation bubble cloud around a marine propeller – prediction by 3DynaFS-Vis coupled with 3DynaFS-Dsm .

Bubbly wake behind a waterjet propulsion nozzle – simulation by 3DynaFS-Vis coupled with 3DynaFS-Dsm .

Wake with splash from a high speed waterjet propelled ship.