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Optimization Design of Compact Diffuser  

Lee, Young Tae (Dept. of Electronic Engineering Education, Andong National University)
Publication Information
Journal of the Semiconductor & Display Technology / v.21, no.4, 2022 , pp. 163-167 More about this Journal
Abstract
In this paper, an optimization design method of a diffuser using Bernoulli's theorem was reviewed. The aspect ratio of the cylindrical diffuser chamber and the diameter ratio of the air inlet and outlet were used as design parameters. For the optimal design of the cylindrical diffuser chamber, the air flow inside the chamber was simulated using ANSYS while changing the aspect ratio of the chamber. In order to confirm the simulation results, the diffuser manufactured using the laser processing machine was measured. Through ANSYS simulation and measurement, it was found that the optimal design condition was when the aspect ratio (chamber height/radius) of the diffuser chamber was 1/2 and the diameter ratio of the air inlet and outlet was also 1/2.
Keywords
Diffuser; Bernoulli's theorem; Design optimization; Simulation; Aspect ratio;
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