In this study, the width of channel, D, and diffuser angle, , at given diffuser width whose value is 100 m will be studied for steady and unsteady flow conditions. By means of a series of numerical simulations, some findings for diffuser valve will be reported. The diffuser valve with a channel width of D = 300 m and diffuser angle =60º, is a better geometry because of its outstanding capability on suction production of net volume flow. Besides, the larger the Reynolds number is, the greater the suction amount of net volume flow will be. When the aspect ratio (AR) is approaching to the value of 4, the diffuser valve becomes more effective. An optimal Strouhal number, StH, based on production of maximum net volumetric flow is 0.338 for D = 300 m. These findings will be useful to micropump of diffuser valve.
Wang, Chin-Tsan; Chang, Pi-Cheng; and Huang, Chien-Cheng
"OPTIMIZATION OF DIFFUSER VALVES,"
Journal of Marine Science and Technology: Vol. 16
, Article 5.
Available at: https://jmstt.ntou.edu.tw/journal/vol16/iss2/5