Study of cavitation in the wake of a cylinder

Cavitation refers to formation of bubbles in a flow and subsequent dissolution in the flow. The bubbles are formed when the low pressures is below vapour pressure at the given temperature. The pressures may be reduced due to flow conditions or imposed acoustic field. Depending on origin cavitation may be classified into acoustic cavitation and hydrodynamic cavitation. Acoustic cavitation is found helpful in various field like biological and medical. Hydrodynamic cavitation can occur in at throat of venturi or downstream of nozzle where the pressures are low. Hydrodynamic cavitation is known to have many undesirable effects in hydroturbomachinery reducing efficiency, generating noise.