Tomographic-PIV experiment were performed in the far field of an axi-symmetric round jet (Re D ≈ 3000) to measure three dimensional velocity fields in a volume of the flow. These 3D data enable the computation of all nine components of the velocity gradient tensor (VGT) at each point in the flow field. The statistical results of Tomo-PIV along the axial direction were assessed by performing a separate set of two-dimensional twocomponent PIV experiments in a "side-view" plane along the jet axis. This "side-view" plane enabled a comparison between the streamwise and spanwise velocities with the Tomo-PIV results as well as components of turbulence intensities in the streamwise and spanwise directions and Reynolds shear stress. A study is also conducted to study the consequences of the divergence error in Tomo-PIV. A proposed correction to the divergence error and the implication of this for studying the properties of the VGT are considered.
|Title of host publication
|17th Australasian Fluid Mechanics Conference 2010
|Number of pages
|Published - 2010
|Australasian Fluid Mechanics Conference 2010 - Auckland New Zealand, Auckland, New Zealand
Duration: 5 Dec 2010 → 9 Dec 2010
Conference number: 17th
|Australasian Fluid Mechanics Conference 2010
|5/12/10 → 9/12/10
|The Australasian Fluid Mechanics Conference has grown steadily from its beginning at the University of Western Australia in 1962. The conference series has traditionally covered the broad field of fluid mechanics in all engineering and scientific disciplines. It provides a forum for presentation of papers in all aspects of fundamental and applied fluid mechanics.
Proceedings of the 17th Australasian Fluid Mechanics Conference 5-9th December 2010 was edited by Prof. G.D. Mallinson and Dr J.E. Cater and published by the Faculty of Engineering in association with the Centre for Continuing Education The University of Auckland.