Research on Internal-Mixing Nozzle for the Icing Environment Simulation

摘要

As one of the important part in aviation industry, nozzles are widely applied on the icing environment experiment. In this paper, we design and validate a novel internal-mixing nozzle for the icing experiment. To begin with, based on the requirements of experiment, the main structure sizes of nozzle are designed and the nozzle is processed for measuring droplet diameter. And then in order to investigate the atomization characteristics of droplet diameter, we model inner flow field of the nozzle and external flow field. Grids are divided to guarantee the simulation accuracy. Finally, the experiment is simulated by FLUENT software, and the simulation results of inner and external flow field are discussed respectively. The experiment shows that the simulation results of the nozzle are in good agreement with the test results.