Results 261 to 270 of about 24,273 (294)

Tip Leakage Flow Characteristics Downstream of an Axial Flow Fan

Volume 1: Turbomachinery, 1996
The three-dimensional viscous flow characteristics and the complex vortex system downstream of the rotor of an industrial exial fan have been determined by an experimental investigation using hot-wire anemometer. Single-wire slanted and straight type probes have been rotated about the probe axis using a computer controlled stepper motor.
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Unsteady Periodic Behavior of a Disturbed Tip-Leakage Flow

AIAA Journal, 2006
The unsteady periodic behavior of a tip-leakage flow downstream of a simulated axial compressor rotor has been studied. A linear cascade wind tunnel has been adapted to model this situation. The wind tunnel features a moving endwall to simulate the relative motion between the rotor and casing and vortex generators attached to the moving end wall that ...
Ruolong Ma, William J. Devenport
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Characteristics of tip leakage flow inside the tip clearance of an axial compressor

Physics of Fluids
The study of flow field characteristics inside the tip clearance is essential for understanding tip leakage flow (TLF) generation mechanisms. This paper investigates the TLF flow field in a single-stage axial compressor using a particle image velocimetry visualization system, alongside proper orthogonal decomposition and omega vortex identification ...
Zhihong Liao, Zhiliang Xue, Jianqi Shen, Yonggang Zhou, Qiwen Jin, Xuecheng Wu   +5 more
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Prediction of mean flow and over-tip shock distribution in pressure-driven tip leakage flows

Physics of Fluids
The flow across the blade tip clearance in turbomachinery is simplified as pressure-driven tip leakage flow (TLF) by isolating it from the mainstream. Based on schlieren visualization and numerical simulations, several common features of TLF are achieved. Consequently, a diffusion model is proposed to evaluate the mean flow and shock motions within the
Xiaolong Tang, Xiaoquan Yang, Fei Wu, Mingsui Yang   +3 more
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Tip leakage flow in a linear turbine cascade

2020
An experimental investigation was performed to study the details of flow in the tip clearance gap of a linear turbine blade cascade. The cascade was designed and built to be geometrically similar to the earlier VPI&SU cascade; however, the new cascade also had a tip gap (2.1 percent of blade height) and two endwall boundary layer bleeds upstream of the
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The Simulation of Tip-Leakage Flow and Its Induced Noise

2018
In this study, the large eddy simulation (LES) numerical method is applied to simulate the flow filed of a foil with the gap between tip and end plate. The flow field details of three different tip gaps were simulated. The noise source induced by the tip-leakage flow was also predicted by LES method, and then the noise characters of foils with ...
Shucheng Zhai, Ziying Xion, Hongxing Sun
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Experimental investigation on spatial-temporal evolution of tip leakage cavitation in a mixed flow pump with tip clearance

International Journal of Multiphase Flow, 2023
Yadong Han, Lei Tan
exaly  

NUMERICAL VISUALIZATION OF BLADE TIP LEAKAGE FLOW

Journal of Flow Visualization and Image Processing, 2006
Jr-Ming Miao, Chen-Yuan Wu, Chang-Hsien Tai   +2 more
openaire   +1 more source

The effects of tip gap variation on transonic turbine blade tip leakage flow based on VLES approach

Aerospace Science and Technology, 2021
Xingsi Han
exaly  

Influence of rotating speed on tip leakage vortex in a mixed flow pump as turbine at pump mode

Renewable Energy, 2020
Yadong Han, Lei Tan
exaly