In China, efforts are being made to improve black and smelly water bodies. One of the measures is to increase water fluidity to improve water quality through natural purification of water bodies. So there are two measures to increase the fluidity of water body: "jet flow" and agitation. We need to add these two measures to ICM. In one-dimensional river or two-dimensional water body, the simulation of "jet" device is added to realize the setting of an inflow into the model at a certain speed. In a two-dimensional water body, the addition of local agitation facilities can realize the change of local flow regime. It can also reflect the hydrodynamic and water quality changes of different distance from the facilities.
