1 results about "Density gradient" patented technology

The application discloses a system and method for configuring stable density stratified water environment by free fall method, which comprises an upstream liquid supply barrel A, an intermediate mixing barrel B and a target water tank C which are sequentially connected, and realizes gravity-driven perfusion without external pumping by using orifice free drainage; the upstream liquid supply barrel A supplies liquid to the intermediate mixing barrel B through a bottom orifice, the intermediate mixing barrel B is continuously stirred to keep the water fully mixed and change the density in the intermediate mixing barrel B over time, and the intermediate mixing barrel B injects the water changing over time into the target water tank C through a bottom orifice, so that the density time history of the intermediate mixing barrel B is mapped to the height density profile of the target water tank C and a density gradient is formed. Meanwhile, a liquid surface disturbance reduction scheme for the target water tank C is disclosed. Compared with the traditional double-barrel method, the application can reduce the dependence on accurate flow ratio adjustment, improve the mixing uniformity in the later stage, shorten the preparation time, and thus realize stable, repeatable and more efficient density stratified water environment construction.