Abstract
This study proposes a three-dimensional (3D) particle image velocimetry (PIV) method using W- shaped light sheet and color PIV with a digital SLR camera. The uncertainty of the velocity measurement was also studied and it was acceptable. The spatial resolution of the z-direction has much room for improvement by increasing the number of cameras. When applied to the velocity distribution measurement of a thermal vertical buoyant plume, the proposed 3D PIV method is found to be very effective for studying thermal structures and well suited for measuring the airflow velocity field.
Highlights
To understand the transport phenomena of heat and fluid flow in various fields of engineering, it is essential to develop experimental methods for measuring the temperature and velocity field of the fluid flow
A tomographic particle image velocimetry (PIV) method was developed, which was successfully applied to an actual flow field [2]
These conditions were sufficient for evaluating the 3D PIV measurement method. 3.2
Summary
To understand the transport phenomena of heat and fluid flow in various fields of engineering, it is essential to develop experimental methods for measuring the temperature and velocity field of the fluid flow. The instantaneous measurement of three-dimensional three-component (3D-3C) velocity fields is essential for studying various fluid flows. For this purpose, a tomographic particle image velocimetry (PIV) method was developed, which was successfully applied to an actual flow field [2]. A tomographic particle image velocimetry (PIV) method was developed, which was successfully applied to an actual flow field [2] This method uses volumetric illumination and requires extremely high power for the velocimetry of airflow. Several high-resolution cameras are required for obtaining original images of the tomographic PIV, and this method becomes cost prohibitive
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