Michigan State University2024-12-092024-12-09https://dspace.academy.edu.ly/handle/123456789/668This work investigates spray flashing evaporation phenomena and resulting shock waves experimentally and numerically, considering superheated liquid water as working fluid. 2D transient Ansys Fluent simulation was utilized to present and prove the occurrence of shock waves generated by a flashing water jets when superheated water is injected through a nozzle into a lowpressure water vapor zone. The Mixture model was applied using the concept of slip velocities to model multiphase flows as non-homogeneous multiphase model where the phases (liquid waterFlash evaporation or flashing is an evaporation phenomenon caused by a sudden pressure drop sufficiently below the saturation pressure. Due to this sudden drop in pressure, the liquid undergoes a quick phase transition, and the sensible heat of the liquid converts into latent heat of evaporation. An accidental release of pressurized liquid from supply pipelines or liquid storage tanks can generate a flashing jet with violent phase change. This fast phase change can cause rapid mixture with an oxidant like air, and if the liquid is flammableNUMERICAL AND EXPERIMENTAL STUDY OF FLASH EVAPORATION PHENOMENON AND RESULTING SHOCK WAVE