Dynamic performance of a diffuser used in cool storage tanks

Numerically simulates a kind of diffuser used in cool storage tanks. Defines a turbulence degree index of diffuser. Simulates the performance of diffuser at the average section flow rates of 0.50, 0.67, 1.00, 2.00 mm/s by Fluent software, respectively. Optimizes the diffuser according to the simulation results. In the process of cool storage and release, the turbulence degree of the optimized diffuser is reduced by 29.09% and 20.26%, respectively, and the volume of the oblique temperature layer is reduced by 28.23% and 33.33%, respectively. According to the optimized diffuser, sets up an experimental platform and performs the experiments. The results show that the temperature distribution of the water tank is similar to the simulated data, and the maximum deviation in the process of cool storage and release is 11.75% and 7.36%, respectively, indicating the accuracy of the numerical simulation results and the effectiveness of the diffuser optimization.