2023.25
Session ID : A22
Conference information
Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : December 02, 2023
Consideration of Optical-Flow Measurement in Pulse-tube
Details
Host: The Japan Society of Mechanical Engineers
Name : [in Japanese]
Date : December 02, 2023
To understand the flow in the pulse tube, a model pulse tube refrigerator was made for visualization, and the Schlieren method was used for visualization and the velocity distribution was estimated by Optical Flow. To obtain accurate velocity distribution, two types of averaging were performed: image averaging and velocity distribution average. As a result, Velocity estimation was possible where the flow boundary was clear. However, inside the flow, the velocity distribution was negative. It was found that averaging of images and velocity distributions is necessary to obtain an accurate flow.
