Design and numerical simulation of multi direction jet flow generator

Abstract

In this paper, we reported the design and numerical simulation of multi direction jet flow generator with disc shaped multi circular airflow channel. Using the finite element analysis method, the COMSOL Multiphysics software was used to calculate the airflow field distribution and motion feature inside of the generator. Calculation and results indicated that: (1) There is an integrated, steadily cycled and directional flow inside of this device. (2) This generator produced four directional flow comprising two perpendicular pairs of flow and generated four orthometric distributed jet flow inside of sensing chamber. (3) The airflow velocity at pump chamber nozzle and sensing chamber nozzle are 20.84m/s, 12.52m/s, respectively. The velocity at the two nozzles are much higher than other part inside of the channel. The mentioned multi direction jet flow generator can be used in multi axis jet flow inertia sensor, micro fluid system and lab-on-chip and so on studying field.