Abstract
In this paper experimental study of flow in T-junction using 3D PIV method is presented. Motion of seeding particles was recorded by a pair of suitably located cameras in precisely defined cross sections of the junction. Based on this information, three-dimensional model of flow in different sections of junction was reconstructed. The reconstruction results from the projection matrixes of each camera, which are obtained from positions of objects in the scene and their projection positions in the image plane. Standard 3D PIV reconstruction was rejected, because of optical distortion in T-Junction.
Highlights
Motion of seeding particles was recorded by a pair of suitably located cameras in precisely defined cross sections of the junction
The reconstruction results from the projection matrixes of each camera, which are obtained from positions of objects in the scene and their projection positions in the image plane
T-junction is illustrated on figure 1. This usual element in pipeline nets leads to unsteady structures of flow and energy losses
Summary
This usual element in pipeline nets leads to unsteady structures of flow and energy losses. These are the subjects for this experimental research on water. The algorithm which is reconstructed on the basis of the projection matrices of each camera which are obtained from positions of objects in the scene and their positions in the image plane is created. Commercial programs such as the Dynamic Studio perform this reconstruction but their algorithms are not sufficiently robust. The algorithm failure in the presence of significant image distortion that is caused by observing objects in cylindrical glass
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