Browse > Article
http://dx.doi.org/10.5139/JKSAS.2021.49.6.457

Prediction of Pressure Fluctuations on Hammerhead Vehicle at Transonic Speeds Using CFD and Semi-empirical Formula Considering Spatial Distribution  

Kim, Younghwa (Agency for Defense Development)
Nam, Hyunjae (Agency for Defense Development)
Kim, June Mo (Agency for Defense Development)
Sun, Chul (Agency for Defense Development)
Publication Information
Journal of the Korean Society for Aeronautical & Space Sciences / v.49, no.6, 2021 , pp. 457-464 More about this Journal
Abstract
To analyze the buffet phenomenon that causes serious vibration loads on a satellite launch vehicle, the pressure fluctuations on a hammerhead launch vehicle at transonic speeds are predicted by coupling CFD analysis and semi-empirical methods. From the RANS simulation, shock oscillation region, separation region, and separation reattachment region are identified, and the boundary layer thickness, the displacement thickness, and flow properties at boundary layer edge are calculated. The pressure fluctuations and power spectra on the hammerhead fairing are predicted by coupling RANS results and semi-empirical methods considering spatial distribution, and compared with the experimental data.
Keywords
Transonic Flow; Pressure Fluctuation; Hammerhead; Buffet; Semi-empirical Method; Computational Fluid Dynamics;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Kumar, R. and Viswanath, P. R., "Mean and Fluctuating Pressure in Boat-Tail Separated Flows at Transonic Speeds," Journal of Spacecraft and Rockets, Vol. 39, No. 3, 2002, pp. 430~438.   DOI
2 Panda, J., Garbeff, T. J., Burnside, N. J. and Ross, J. C., "Unsteady Pressure Fluctuations Measured on a Hammerhead Space Vehicle and Comparison with Coe and Nute's 1962 data," International Journal of Aeroacoustics, Vol. 17, Issue 1-2, 2018, pp. 70~87.   DOI
3 Chandiramani, K. L., "Structural Response to Inflight Acoustic and Aerodynamic Environments," Bolt Beranek and Newman Report 1417, 1967.
4 Cole, H. A., Erickson, A. L. and Rainey, A. G., "Buffeting During Atmospheric Ascent," NASA SP-8001, 1970.
5 Laganelli, A. L., "Prediction of Fluctuating Pressure in Attached and Separated Turbulent Boundary Layer Flow," AIAA Paper 89-1064, 1989.
6 Rainey, A. G., "Progress on the Launch-Vehicle Buffeting Problem," Journal of Spacecraft and Rockets, Vol. 2, No. 3, 1965, pp. 289~299.   DOI
7 Coe, C. F., "Steady and Fluctuating Pressures at Transonic Speeds on Two Space-Vehicle Payload Shapes," NASA TM X-503, 1961.
8 Coe, C. F., "The Effects of Some Variations in Launch-Vehicle Nose Shape on Steady and Fluctuating Pressures," NASA TM X-646, 1962.
9 Coe, C. F. and Nute, J. B., "Steady and Fluctuating Pressures at Transonic Speeds on Hammerhead Launch," NASA TM X-778, 1962.
10 Shelton, J. D., "Collation of Fluctuating Buffet Pressures for the Mercury/Atlas and Apollo/ Saturn Configurations," NASA CR-66059, 1966.
11 Lowson, M. V., "Pressure Fluctuations Resulting from Shock Interactions," Journal of Sound Vibration, Vol. 7, No. 3, 1968, pp. 380~392.   DOI
12 Kim, Y., Kang, E. and Ahn, H., "Numerical Simulation for Transonic Wing-Body Configuration using CFD," Journal of the Korean Society for Aeronautical and Space Sciences, Vol. 45, No. 3, 2017, pp. 233~240.   DOI
13 Robertson, J. E., "Prediction of In-Flight Fluctuation Pressure Environments Including Protuberance Induced Flow," Wyle Laboratories Report WR 71-10, 1971.
14 Cockburn, J. A. and Robertson, J. E., "Vibration Response of Spacecraft Shrouds to In-Flight Fluctuating Pressures," Journal of Sound and Vibration, Vol. 33, No. 4, 1974, pp. 399~425.   DOI
15 Yang, M. Y. and Wilby, J. F., "Derivation of Aero-Induced Fluctuating Pressure Environments for Ares I-X," AIAA Paper 2008-2801, 2008.
16 Chaump, L. E., Martellucci, A. and Monfort, A., "Aeroacoustic Loads Associated with High Bets Re-Entry Vehicle," AFFDL-TR-72-133, 1973.
17 Murman, S. M. and Diosady, L. T., "Simulation of a Hammerhead Payload Fairing in the Transonic Regime," AIAA Paper 2016-1548, 2016.
18 Chae, M. G., Park, S. H. and Bae, J. S., "Analysis of Numerical Factors Affecting the Simulation of Pressure Perturbation around a Hammerhead Launch Vehicle," Journal of Computational Fluids Engineering, Vol. 22, No. 2, 2017, pp. 59~65.   DOI
19 Park, S., Kim, M., Kim, H. and Lee, S., "A Study on the Acoustic Loads Prediction of Flight Vehicle using Computational Fluid Dynamics-Empirical Hybrid Method," Journal of the Acoustical Society of Korea, Vol. 37, No. 3, 2018, pp. 163~174.
20 Irvine, T., "Prediction of Sound Pressure Levels on Rocket Vehicles During Ascent Revision E," http://vibrationdata.com, 2011.