Y-type intersection river pollutant transport and mixing simulation experiment device and test method

The invention discloses a Y-type intersection river pollutant transport and mixing simulation experiment device and a test method. The device comprises a pollutant tracer discharge device, a water flow circulation device, a flow regulating device and a measuring device. The pollutant tracer discharge device comprises an overflow flat water head drainage tank and a tracer discharge port. The overflow flat water head drainage tank is connected to the tracer discharge port through a hose. The water flow circulation device comprises an intersection angle variable and slope variable Y-shaped watertank and a reservoir. The measuring device measures conductivity of each point of the cross section and calculates the concentration of the tracer sodium chloride so that the transport and mixing variation rule of the pollutants in the Y-shaped river is acquired. The method has the characteristics of flexible change of the intersection angle and slope and provides a novel tool and method for the study of the pollutant tra