The multiple jets in crossflow is a fluid flow problem related to many environmental and industrial applications including wastewater discharge into the coastal water, injection of oxygen to raise the DO level of the lypolimnion in stratified lakes, gas injection in combustion chambers, to deplete marine phytoplankton through siphonal currents, etc. This book is mainly concerned with the behavior of individual jet trajectories in a group abstracted from LIF images that interpreted with Lagrangian model. The ADV measurement gave 3D understanding of the flow structure. A first order...