Numerical Investigation on Potential Effects Induced by Rotor-Stator Interaction in an Axial Turbine
the author of the article can submit here a request for assignment of a DOI number to this resource!
Cost of the service: euros 10,00 (for a DOI)
A three-dimensional Navier-Stokes code is used to numerically investigate the rotor-stator interaction in a large scale turbine inlet guide vane (IGV) placed upstream of a moving circular cylinder system. Potential counterflow interactions are more especially discussed. Steady and unsteady simulations are performed and show that the potential effect generates significant pressure fluctuations on both the pressure and suction sides. A detailed analysis of the pressure field shows that these cylinder-induced disturbances propagate upstream as a nearly sinusoidal acoustic wave. The initial amplitude and form of the wave is connected to the stagnation pressure and the location of the stagnation point on the cylinder in the rotating frame. In addition, a numerical comparison with viscous wake interactions by positioning a cylinder upstream of the IGV shows that disturbances induced by potential effect have the same order of magnitude. To corroborate the numerical results, experimental measurements are carried out in a low speed large scale cascade facility placed upstream of a specially designed circular-cylinder rotating system.
Copyright © 2016 Praise Worthy Prize - All rights reserved.
H.P. Hodson, Bladerow interactions in low pressure turbines, VKI Lectures Series, 2, 1998.
M.K. Fabian, E.A. Falk, E.J. Jumper, Upstream-propagating potential disturbances interacting with a compressible cascade, Journal of Propulsion and Power, Vol. 17 (2):240-247, 2001.
R. Parker, J.F. Watson, Interactions effects between blade rows in turbomachines, Proc. Instn Mech Engrs, 186, pp. 331-340, 1972.
R. Mailach, L. Muller, K. Vogeler, Rotor-stator interactions in a four-stage low-speed axial compressor – Part I: Unsteady profile pressure and the effect of clocking, Journal of Turbomachinery, Vol. 126:507-518, October 2004.
R. Mailach, L. Muller, K. Vogeler, Rotor-stator interactions in a four-stage low-speed axial compressor – Part II: Unsteady aerodynamic forces of rotor and stator blades, Journal of Turbomachinery, Vol. 126:519-526, October 2004.
R. P. Dring, H.D. Joslyn, L.W. Hardin, J.H. Wagner, Turbine rotor-stator interaction, Journal of Engineering for Power, 82-GT-3, 1982.
M.M. Opoka, R.L. Thomas, H.P. Hodson, Boundary layer transition on the high lift T106a low-pressure turbine blade with an oscillating downstream pressure field, ASME Journal of Turbomachinery, Vol. 130, April 2008.
C. Hirsch, Numerical computation of interal and external flows fundamental and numerical discretization Vol. 1 (John Wiley and Sons, 1988).
W. Pache, H. Pfeil, Measurements of flow boundary layers on conditions of turbomachines, Zeitschrift für Flugwissenschaften and Weltraumforschung, 1:267-278, 1977.
L. Wright, M.T. Scobeiri, K. Pappu, ASME paper, 95-GT-435, 1995.
H.P. Hodson, V. Schulte, Unsteady wake-induced boundary layer transition in high lift LP turbines, Journal of Turbomachinery, Vol. 20:28-35, January 1998.
L. Cambier, J.P. Veuillot, Status of the elsA CFD software for flow simulation and multi-disciplinaty applications, 46th AIAA Aerospace Sciences Meeting and Exhibit, Reno, 2008.
J.M. Weiss, W.A. Smith, Preconditionning applied to variable and constant density flows, AIAA Journal, 33(11):2050-2057, 1995.
Y.H., Choi, C.L. Merkle, The application of Preconditioning in Viscous flows, Journal Computational Physics, Vol. 105:207-223, 1993.
A.J. Chorin, A numerical method for solving incompressible viscous flow problems, Journal of computational Physics, Vol. 1, 1967.
E. Turkel, V.N. Vatsa, R. Radespiel, Preconditionning methods for low-speed flows, AIAA paper 96-2460-CP, 1996.
P. Kulisa, C. Dano, Numerical simulation of unsteady blade row interactions induced by passing wakes, European Journal of Mechanics, Vol. 25:379-392, 2006.
F. Bario, C. Beral, Boundary layer measurements on the pressure and suction sides of a turbine inlet guide vane, Experiment Thermal and Fluid Science, Vol. 17:1-9, 1998.
M.M. Opoka, H.P. Hodson, An experimental investigation of the unsteady transition process on the high lift T106a low-pressure turbine blade, ISABE paper, Munich, 2005.
M.M. Opoka, M.M. Thomas, H.P. Hodson, Boundary layer transition on the high lift T106A low-pressure turbine blade with oscillating downstream pressure field, ASME, Journal of Turbomachinery, Vol.130, 2008.
- There are currently no refbacks.
Please send any question about this web site to email@example.com
Copyright © 2005-2019 Praise Worthy Prize