Application of unsteady vortex lift in turbomachinery

Lin Du; Xiaofeng Sun; Vigor Yang

Application of unsteady vortex lift in turbomachinery

Lin Du, Xiaofeng Sun, Vigor Yang

College of Engineering

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The Weis-Fogh mechansim is quite attractive because it can generate very high unsteady lift. It is indicated that the high unsteady lift is related to the attached vortex around the leading edge and trailing edge of wing/airfoil, which is caused by the relative motion. In the present work, the numerical results prove that, when the axial spacing is reduced, the interaction between rotor/stator can generate unsteady vortex around the rotor blades, and the rotor lift coefficient is increased, which improves the performance of stage. Besides reducing the axial spacing, the rotor/controllable stator system is proposed to apply vortex lift in turbomachinery. It is indicated that unsteady lift coefficient is increased greatly by the relative motion of rotor/controllable stator and the unsteady vortex is very important.

Original language	English
Title of host publication	48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012
Publication status	Published - 2012
Event	48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012 - Atlanta, GA, United States Duration: 2012 Jul 30 → 2012 Aug 1

Publication series

Name	48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012

Other

Other	48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012
Country	United States
City	Atlanta, GA
Period	12-07-30 → 12-08-01

All Science Journal Classification (ASJC) codes

Energy Engineering and Power Technology
Aerospace Engineering
Control and Systems Engineering
Electrical and Electronic Engineering
Mechanical Engineering

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Cite this

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title = "Application of unsteady vortex lift in turbomachinery",

abstract = "The Weis-Fogh mechansim is quite attractive because it can generate very high unsteady lift. It is indicated that the high unsteady lift is related to the attached vortex around the leading edge and trailing edge of wing/airfoil, which is caused by the relative motion. In the present work, the numerical results prove that, when the axial spacing is reduced, the interaction between rotor/stator can generate unsteady vortex around the rotor blades, and the rotor lift coefficient is increased, which improves the performance of stage. Besides reducing the axial spacing, the rotor/controllable stator system is proposed to apply vortex lift in turbomachinery. It is indicated that unsteady lift coefficient is increased greatly by the relative motion of rotor/controllable stator and the unsteady vortex is very important.",

author = "Lin Du and Xiaofeng Sun and Vigor Yang",

year = "2012",

language = "English",

isbn = "9781600869358",

series = "48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012",

booktitle = "48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012",

}

TY - GEN

T1 - Application of unsteady vortex lift in turbomachinery

AU - Du, Lin

AU - Sun, Xiaofeng

AU - Yang, Vigor

PY - 2012

Y1 - 2012

N2 - The Weis-Fogh mechansim is quite attractive because it can generate very high unsteady lift. It is indicated that the high unsteady lift is related to the attached vortex around the leading edge and trailing edge of wing/airfoil, which is caused by the relative motion. In the present work, the numerical results prove that, when the axial spacing is reduced, the interaction between rotor/stator can generate unsteady vortex around the rotor blades, and the rotor lift coefficient is increased, which improves the performance of stage. Besides reducing the axial spacing, the rotor/controllable stator system is proposed to apply vortex lift in turbomachinery. It is indicated that unsteady lift coefficient is increased greatly by the relative motion of rotor/controllable stator and the unsteady vortex is very important.

AB - The Weis-Fogh mechansim is quite attractive because it can generate very high unsteady lift. It is indicated that the high unsteady lift is related to the attached vortex around the leading edge and trailing edge of wing/airfoil, which is caused by the relative motion. In the present work, the numerical results prove that, when the axial spacing is reduced, the interaction between rotor/stator can generate unsteady vortex around the rotor blades, and the rotor lift coefficient is increased, which improves the performance of stage. Besides reducing the axial spacing, the rotor/controllable stator system is proposed to apply vortex lift in turbomachinery. It is indicated that unsteady lift coefficient is increased greatly by the relative motion of rotor/controllable stator and the unsteady vortex is very important.

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M3 - Conference contribution

AN - SCOPUS:84880837064

SN - 9781600869358

T3 - 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012

BT - 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012

T2 - 48th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2012

Y2 - 30 July 2012 through 1 August 2012

ER -