Flow over partially liquid filled cavity etc15 Tracking Number 301Presentation: Session: Multiphase and non-Newtonian flows 1 Room: Room H Session start: 13:30 Wed 26 Aug 2015 Andries C. van Eckeveld a.c.vaneckeveld@tudelft.nl Affifliation: Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, The Netherlands Avinash K. Pancham A.K.Pancham@student.tudelft.nl Affifliation: Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, The Netherlands Jerry Westerweel J.Westerweel@tudelft.nl Affifliation: Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, The Netherlands Christian Poelma c.poelma@tudelft.nl Affifliation: Laboratory for Aero & Hydrodynamics, Delft University of Technology, Delft, The Netherlands Topics: - Wall bounded flows Abstract: Experiments have been carried out to investigate the effect of liquid cavity filling on the behavior of the gas flow over a flat plate cavity. PIV measurements in the gas phase reveal that cavity filling can affect vortex shedding in the cavity mouth. Shear layer vortices can break-up into smaller vortices, thereby losing their periodic interaction with the aft wall and, hence, their sound producing potential. Expected is that this is one of the mechanisms causing sound mitigation in corrugated pipes with liquid addition, observed in literature. |