Numerical study of laser-induced cavitation bubble with consideration of chemical reactions

• DOI: 10.1016/j.ultsonch.2024.107007
• Publication Date: 2024-08-06T08:04:49Z
• Authors: Chengyan Wang; Hong Yan; Ruifan Zhang; Fuzhen Chen; Fan Liu
• Keywords: Sonochemistry

Cavitation generated during injector jetting can significantly affect fuel atomization. Laser-induced cavitation bubble is an important phenomenon in laser induced plasma ignition technology. Limited by the difficulties experimental measurements, numerical simulations have become tool study of laser-induced bubble, but most previous models used to dynamics usually ignore effect chemical reactions. In this study, finite volume method solve compressible two-dimensional reynolds averaged Navier–Stokes equation considering heat and mass transfer as well reactions within bubble. The effects overall reaction elementary on are evaluated, respectively. It found that additionally model, lower maximum temperatures higher pressures predicted And non-condensable gases produced enhance subsequent expansion process Besides, one-sided wall boundary condition compared with infinite condition. Influenced boundary, forms a localized high pressure side away from collapse process, which causes be compressed into "crescent" shape. temperature inside due losses caused wall.