Explaining High Celerities and Velocities in Vadose Zone Fractures

Puntos clave

• This research aims to explain the mechanisms leading to high flow velocities in fractures within the vadose zone.
• Analyzed flow patterns in bedrock aquifers.
• Measured film flow down fracture walls.
• Examined free-fall flow down open vertical fractures.
• Identified flow velocities ranging from 10^-4 to 10^-1 m/s.
• Demonstrated that rapid flow in fractures is a significant phenomenon in the vadose zone.