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PIV MEASUREMENTS OF THE FLOW IN A ROTATING CAVITY WITH A RADIAL INFLOW

DOI: 10.1615/ICHMT.2009.HeatTransfGasTurbSyst.310
12 pages

Xiao Yu
National Key Lab. on Aero-Engines, School of Jet Propulsion, BUAA, Beijing; and bShenyang Aeroengine Design and Research Institute, Aviation Industry Corporation of China, Shenyang, China

Xiang Luo
National Key Laboratory of Science and Technology on Aero-Engines, Beijing University of Aeronautics and Astronautics, Beijing, 100191, China

Guoqiang Xu
National Key Laboratory of Science and Technology on Aero-Engines, School of Jet Propulsion, Beihang University, Beijing, 100191, China; School of Energy Science and Engineering, Harbin institute of Technology, Harbin, 150001, China

Jining Sun
National Key Laboratory of Science and Technology on Aero-Engines, School of Jet Propulsion, Beihang University, Beijing, 100191, China

Résumé

This paper presents the measurements of the flow in a rotating cavity with a radial inflow using particle image velocimetry (PIV). At the experimental conditions, the flow structure was found to be unstable and the source region fills the whole cavity. The ensemble-average velocity field in the rotating cavity was discussed in this paper. With the date, the nondimensional core velocity could be acquired and used to estimate the total press loss in a rotating cavity with a radial inflow. At the same time the PIV measurements could provide the spatial distribution of the instantaneous velocity. Experiments were conducted with a rotational Reynolds number of 3.97×105 and a nondimensional mass flow rate of 1.32×104.

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