Browse > Article
http://dx.doi.org/10.5139/JKSAS.2009.37.2.113

Aerodynamic Simulation of Rotor-Airframe Interaction by the Momentum Source Method  

Kim, Young-Hwa (한국과학기술원 항공우주공학과 대학원)
Park, Seung-O (한국과학기술원 항공우주공학과)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.37, no.2, 2009 , pp. 113-120 More about this Journal
Abstract
To numerically simulate aerodynamics of rotor-airframe interaction in a rigorous manner, we need to solve the Navier-Stokes system for a rotor-airframe combination in a single computational domain. This imposes a computational burden since rotating blades and a stationary body have to be simultaneously dealt with. An efficient alternative is a momentum source method in which the action of rotor is approximated as momentum source in a stationary mesh system built around the airframe. This makes the simulation much easier. The magnitude of the momentum source is usually evaluated by the blade element theory, which often results in a poor accuracy. In the present work, we evaluate the momentum source from the simulation data by using the Navier-Stokes equations only for a rotor system. Using this data, we simulated the time-averaged steady rotor-airfame interaction and developed the unsteady rotor-airframe interaction. Computations were carried out for the simplified rotor-airframe model (the Georgia Tech configuration) and the results were compared with experimental data. The results were in good agreement with experimental data, suggesting that the present approach is a usefull method for rotor-airframe interaction analysis.
Keywords
Rotor-airframe interaction; Momentum source method; Rotor simulation;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Landgrebe, A J., Moffitt, R. C, and Clark, D. R., "Aerodynamic Technology For Advanced Rotorcraft, Parts I and II", Journal of American Helicopter Society, Vol. 22, No. 2-3, pp. 21-27, 2-12, 1977.   DOI
2 Mavris, D. N., Korn erath, N. K., and McMahon, H. M., "Prediction of Aerodynamic Rotor-Airframe Interaction in Forward Flight", Journal of the American Helicopter Society, Vol. 34, No. 4, pp. 37-46, 1989.   DOI
3 Rajagopalan, R. G., and Zhang, Z., "Performance and Flow Field of a Ducted Propeller", AIAA-1989-2673, 1989.
4 Rajagopalan, R. G., and Chin, K. L., "Laminar Flow Analysis of a Rotor in Hover", Journal of the American Helicopter Society, Vol. 36, No.1, pp. 12-23, 1991.   DOI
5 Rajagopalan, R. G., and Mathur, S. R., "Three Dimensional Analysis of a Rotor in Forward Flight", Journal of the American Helicopter Society, Vol. 38, No .3, pp.14-25, 1993.   DOI
6 Zori, L. A. J., and Rajagopalan, R. G., "Navier-Stokes Calculations of Rotor-Airframe Interaction in Forward Flight", Journal of the American Helicopter Society, Vol. 40, No. 2, pp. 56-67, 1995.
7 Rajagopalan., R. G., "A Procedure for Rotor Performance, FIowfield and Inter ference: A Perspective", AIAA-2000-0116, 2000.
8 Lorber, P. P., and Egolf, T. A, "An Unsteady Helicopter Rot or-Fuselage Aerodynamic Interaction Analysis", Journal of the American Helicopter Society, Vol. 35, No . 3, pp. 32-42, 1990.   DOI
9 Ruffin, S. M., O'Brien, D., Smith, M. J., Hariharan, N., Lee, J-D, and Sankar, L., "Comparison of Rotor-Airframe Interaction Utilizing Overset and Unstructured Grid Techniques", AIAA 2004-0046, 2004.
10 Hariharan, N., and Sankar L. N ., "Unsteady Overset Simulation of Rotor-Airframe Interaction", Journal of Aircraft, Vol. 40, No.4, pp. 662-674, 2003.   DOI   ScienceOn
11 Park, Y. M., Narn, H. J., and Kwon, O. J., "Simulation of Unsteady Rotor-Fuselage Aerodynamic Interaction Using Unstructured Adaptive Meshes", Journal of the American Helicopter Society, Vol. 51, No. 2, pp. 141-149, 2006.   DOI
12 Chaffin, M. S., "A Guide to the Use of the Pressure Disk Rotor Model as Implemented in INS3D-UP", NASA CR-4692, 1995.
13 Rajagopalan, R. G., Rickehl, T. L., and Klimas, P. C., "Aerodynamic Interference of Two Vertical Axis Wind Turbines", AIAA-1988-2534, 1988.
14 Brand, A. G., McMahon, H. M. and Komerath, N. M., "Surface Pressure Measurements on a Body Subject to Vortex Wake Interaction", AIAA Journal, Vol. 27, No. 5, pp. 569-574, 1989.   DOI   ScienceOn
15 Ruith, M. R., "Unstructured, Multiplex Rot or Source Model With Thrust And Moment Trimming-Fluent's VBM Model", AIAA 2005-5217, 2005.
16 CD-adapco Group, 2004, STAR-CD Version 3.20 Methodology.
17 G. Liou, "Velocity Measurement of a Lifting Rotor, Airframe Configuration In Low Speed in Forward Flight", Ph.D. Thesis, Georgia Institute of Technology, 1988.
18 Liou, S. G., Komerath, N. M., and McMahon, H. M., "Velocity Measurements of Airframe Effects on a Rotor in Low-Speed Forward Flight", Journal of Aircraft, Vol. 26, No. 4, pp. 340-348, 1989.   DOI   ScienceOn