Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : September 13, 2020 - September 16, 2020
In this study, we investigate the flow rate through a narrow gap with a texture on the channel surface and how the flow rate through the gap changes compared to the flow rate without a texture. We have developed an experimental apparatus that allows us to adjust the thickness of the gaps, and we have conducted experiments using samples with different sizes, locations and shapes of textures on the channel walls. As a result, the flow rate decreases as the hole depth ratio increases, but increases in a region with a small depth ratio. The flow rate decreases as the total number of holes increases. The higher the Reynolds number, the more effectively the flow rate is reduced. In the case of only one hole, the flow rate decreases with a lower Reynolds number.
