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http://dx.doi.org/10.5139/JKSAS.2007.35.8.693

Development of a numerical method for rotor aerodynamics applications  

Kim, Hae-Dong (세종대학교 기계항공우주공학부)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.35, no.8, 2007 , pp. 693-698 More about this Journal
Abstract
A numerical method for accurate simulations of rotor aerodynamics is proposed. The numerical diffusion in the typically coarse grids away from the rotor blades is improved by implying a fourth-order of interpolation of local characteristic variables of the flow in the reconstruction stage of MUSCL approach in the framework of a finite volume formulation. In addition, different slope limiters are applied to the different characteristic fields, such as compressive limiters to linear characteristic fields to reduce the numerical dissipation whereas, diffusive limiters to nonlinear characteristic fields to increase numerical stability. Various exemplary problems related to the rotor aerodynamics applications are tested and the numerical results show a significant improvement in wake capturing capability. However, rotor aeroacoustic calculations show no meaningful difference over traditional MUSCL approach.
Keywords
Rotor aerodynamics; Characteristic field decomposition; Wake capturing capability; MUSCL;
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1 Sweby, P. K., 'High Resolution Schemes Using Flux Limiters for Hyperbolic Conservation Laws', SIAM Journal on Numerical Analysis, Vol. 21, No.5, 1984, pp. 995-1011   DOI   ScienceOn
2 Srinivasan, G. R, Baeder, J. D., Obayashi, S., and McCrosky, W. J., 'Flowfield of a Lifting Rotor in Hover: A Navier-Stokes Simulation', AIAA Journal, Vol. 30, No. 10, 1992, pp. 2371-2378   DOI
3 Koren, B., 'Upwind Schemes, Multigrid and Defect Correction for the Steady Navier-Stokes Equations', Proceedings of the International Conference on Numerical Methods in Fluid Dynamics, edited by D. L. Dwoyer, M. Y. Hussani, and R. G. Voigt, Springer-Verlag, Berlin, 1989
4 Caradona, F. X., and Tung, C. 'Experimental and Analytical Studies of a Model Helicopter Rotor in Hover', NASA TM 81232, 1981
5 Srinivasan, G. R., Raghavan, V., and Duque, E. P. N., 'Flowfield Analysis fo Modem Helicopter Rotors in Hover by Navier-Stokes Method, International Technical Specialists Meeting on Rotorcraft Acoustics and Rotor Fluid Dynamics, Philadelphia, PA., 1991
6 Hirsch, C, 'Numerical Computation of Internal and External Flows, Volume 2', Wiley, New York, 1987, pp. 150-157
7 Wang, G., Sankar, L. N., and Tadghighi, H., 'Prediction of Rotorcraft Noise with a Low-Dispersion Finite Volume Scheme', AIAA Journal, Vol. 38, No.3, 2000, pp. 395-401   DOI   ScienceOn
8 Kitaplioglu, C, and Caradona, F. X., 'A study of Blade-Vortex Interaction Aeroacousticc Utilizing an Independently Generated Vortex', AGARD Fluid Dynamics Pannel Symposium on Aerodynamics and Aeroacoustics of Rotorcraft, Berlin, Germany, 1994
9 Yamamoto, S., and Daiguji, S., 'Higher-Order Accurate Upwind Schemes for Solving the Compressible Euler and Navier Stokes Equations', Computers and Fluids, Vol. 22, 1993, pp.259-270   DOI   ScienceOn
10 Roe, P. L., 'Approximate Riemann Solvers, Parameter Vectors and Difference Schemes', Journal of Computational Physics, Vol. 43, No.2, 1981, pp. 357-372   DOI   ScienceOn
11 Kim, H., 'Computational Techniques for Blade Vortex Interaction Prediction', Ph. D. Dissertation, School of Aeronautics and Astronautics, Purdue University, West Lafayette, IN, Aug. 2001
12 Scully, M. P., 'Computation of Helicopter Rotor Wake Geometry and Its Influence on Rotor Harmonic Airloads', ASRL TR 178-1, Massachusetts Institute of Technology, 1975