Publisher : The Korean Society for Aeronautical & Space Sciences
DOI : 10.5139/IJASS.2014.15.4.356
Title & Authors
Flight Dynamics Analyses of a Propeller-Driven Airplane (II): Building a High-Fidelity Mathematical Model and Applications Kim, Chang-Joo; Kim, Sang Ho; Park, TaeSan; Park, Soo Hyung; Lee, Jae Woo; Ko, Joon Soo;
This paper is the second in a series and aims to build a high-fidelity mathematical model for a propeller-driven airplane using the propeller`s aerodynamics and inertial models, as developed in the first paper. It focuses on aerodynamic models for the fuselage, the main wing, and the stabilizers under the influence of the wake trailed from the propeller. For this, application of the vortex lattice method is proposed to reflect the propeller`s wake effect on those aerodynamic surfaces. By considering the maneuvering flight states and the flow field generated by the propeller wake, the induced velocity at any point on the aerodynamic surfaces can be computed for general flight conditions. Thus, strip theory is well suited to predict the distribution of air loads over wing components and the viscous flow effect can be duly considered using the 2D aerodynamic coefficients for the airfoils used in each wing. These approaches are implemented in building a high-fidelity mathematical model for a propeller-driven airplane. Flight dynamic analysis modules for the trim, linearization, and simulation analyses were developed using the proposed techniques. The flight test results for a series of maneuvering flights with a scaled model were used for comparison with those obtained using the flight dynamics analysis modules to validate the usefulness of the present approaches. The resulting good correlations between the two data sets demonstrate that the flight characteristics of the propeller-driven airplane can be analyzed effectively through the integrated framework with the propeller and airframe aerodynamic models proposed in this study.
propeller-driven airplane;flight dynamics modeling;vortex lattice method;blade element method;strip theory;
Flight Dynamics Analyses of a Propeller-Driven Airplane (I): Aerodynamic and Inertial Modeling of the Propeller, International Journal of Aeronautical and Space Sciences, 2014, 15, 4, 345
John D. Anderson, Jr., Fundamentals of Aerodynamics, McGraw Hill, 2011.
TaeSan Park, Chang-Joo Kim, Sanh Hoon Shin, and Sunguk Hur, "Analysis Techniques of Flight Performance and Stability Analysis for Light Sports Airplane," The Korean Society for Aeronautical and Space Science, Spring conference, April, 2012.
Robert F. Stengel, Flight Dynamics, Princeton University Press, 2004.
J. Gordan Leishman, Principles of Helicopter Aerodynamics, Cambridge University Press, 2006.
Kim C.-J., Park S. Y., Shin K. C., Kim S. H. and Jung K. H., "Study on Modelling Parameters for Rotor Free-Wake Analysis," The Korean Society for Aeronautical and Space Science, Spring conference, December 2010.
Park, S.H. and Kwon, J.H., "Implementation of Turbulence Models in an Implicit Multigrid Method," AIAA Journal, Vol.42, No.7. 2004, pp.1348-1357.
David K. Schmidt, Modern Flight Dynamics, McGraw Hill, 2012.
Brian L. Stevens, and Frank L. Lewis, Aircraft Control and Simulation, John Wiley & Sons Inc., 1992.
Spedicato, E., Huang, Z. and Bergamo, "Numerical Experience with Newton-like Methods for Nonlinear Algebraic Systems," Computing, Vol. 58, No. 1, 1997, pp. 69-89.
Chang-Joo Kim, et. al., "Flight Dynamic Analyses of Propeller-Driven Airplane (I): Aerodynamic and Inertial Modelling of Propeller," International Journal of Aeronautical and Space Sciences, Vol. 15, No. 4, 2014, pp. 345-355.