Abstract
The aerodynamics of gas-particle suspensions is simulated as an Euler-Euler two-fluid model in a revolving rotor over a particle bed. The interactions of collisions between the blade and particles and particle-particle interactions are modeled using the kinetic theory of granular flow (KTGF). The gas turbulence induced by the rotation of the rotor is modeled using the kg-εg model. The flow field of a revolving rotor is simulated using the multiple reference frame (MRF) method. The distributions of velocities, volume fractions, and gas pressure are predicted while the aircraft hovers at different altitudes. The gas pressure decreases from the hub to the tip of the blade, and it is higher at the pressure side than that at the suction side of the rotor. The turbulent kinetic energy of the gas increases toward the blade tip. The volume fraction of particles decreases as the hovering altitude increases. The simulated pressure coefficient is compared with that in experimental measurements.
Similar content being viewed by others
References
GILLIES, J. A., ETYEMEZIAN, V., KUHNS, H., MCALPINE, J. D., KING, J., UPPAPALLI, S., and NIKOLICH, G. Dust emissions created by low-level rotary-winged aircraft flight over desert surfaces. Atmospheric Environment, 44(8), 1043–1053 (2010)
QUINLIVEN, T. and LONG, K. Rotor performance in the wake of a large structure. American Helicopter Society 65th Annual Forum, Grapewine, Texas (2009)
RAJAGOPALAN, G., NIAZI, S., WADCOCK, A. J., YAMAUCHI, G. K., and SILVA, M. J. Experimental and computational study of the interaction between a tandem-rotor helicopter and a ship. American Helicopter Society 61st Annual Forum, Grapewine, Texas (2005)
NACAKLI, Y. and LANDMAN, D. Helicopter downwash/frigate air wake interaction flow-field PIV surveys in a low speed wind tunnel. AHS 67th Annual Forum, Virginia Beach, VA, USA, 1–11 (2011)
POLSKY, S. and WILKINSON, C. A computational study of outwash for a helicopter operat-ing near a vertical face with comparison to experimental data. AIAA Modeling and Simulation Technologies Conference, American Institute of Aeronautics and Astronautics, Reston (2009)
LIU, T. L. and PAN, K. C. Application of the sliding mesh technique for helicopter rotor flow simulation. Journal of Aeronautics, Astronautics and Aviation, Series A, 44(3), 201–210 (2012)
VOS, J. B., RIZZI, A., DARRACQ, D., and HIRSCHEL, E. H. Navier-Stokes solvers in European aircraft design. Progress in Aerospace Scienced, 38(8), 601–697 (2002)
CARADONNA, F. X. and TUNG, C. Experimental and analytical studies of a model helicopter rotor in hover. Vertica, 5(1), 149–161 (1981)
SYAMLAL, M., O’BRIEN, T. J., and ROJERS, W. MFIX Documentation, Theory Guide, Tech-nical Report DOE/METC-9411004, Morgantown Energy Technology Center, Morgantown (1993)
GIDASPOW, D. Multiphase Flow and Fluidization: Continuum and Kinetic Theory Description, Academic Press, San Diego (1994)
ANSYS FLUENT INC. FLUENT 6.2 User’s Guide, Southpointe, U. S.A. (2012)
HUILIN, L. and GIDASPOW, D. Hydrodynamics of binary fluidization in a riser: CFD simulation using two granular temperatures. Chemical Engineering Science, 58(16), 3777–3792 (2003)
JOHNSON, P. C. and JACKSON, R. Frictional-collisional constitutive relations for granular ma-terials, with application to plane shearing. Journal of Fluid Mechanics, 176, 67–93 (1987)
ZIAD, B. A. A. and MOHD, S. A. A case study on the air flow characteristics of the Hirobo-FALCON 505 controllable helicopter’s main rotor blade. Applied Mechanics and Materials, 527, 39–42 (2014)
ZAGAGLIA, D., ZANOTTI, A., and GIBERTINI, G. Analysis of the loads acting on the rotor of a helicopter model close to an obstacle in moderate windy conditions. Aerospace Science and Technology, 78, 580–592 (2018)
Author information
Authors and Affiliations
Corresponding author
Additional information
Project supported by the National Natural Science Foundation of China (Nos. 91752115 and 51776059)
Rights and permissions
About this article
Cite this article
Jiang, X., Xu, Y., Wang, C. et al. Numerical simulations of gas-particle flow behavior created by low-level rotary-winged aircraft flight over particle bed. Appl. Math. Mech.-Engl. Ed. 40, 397–406 (2019). https://doi.org/10.1007/s10483-019-2449-9
Received:
Revised:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10483-019-2449-9
Key words
- helicopter
- rotor
- Euler-Euler two-fluid model
- kinetic theory of granular flow (KTGF)
- pressure coefficient