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Comparison of Measured and Block Structured Simulations for the F-16XL AircraftThis article presents a comparison of the predictions of three RANS codes for flight conditions of the F-16XL aircraft which feature vortical flow. The three codes, ENSOLV, PMB and PAB3D, solve on structured multi-block grids. Flight data for comparison was available in the form of surface pressures, skin friction, boundary layer data and photographs of tufts. The three codes provided predictions which were consistent with expectations based on the turbulence modelling used, which was k- , k- with vortex corrections and an Algebraic Stress Model. The agreement with flight data was good, with the exception of the outer wing primary vortex strength. The confidence in the application of the CFD codes to complex fighter configurations increased significantly through this study.
Document ID
20090014739
Acquisition Source
Langley Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Boelens, O. J. (National Aerospace Lab. Amsterdam, Netherlands)
Badcock, K. J. (Liverpool Univ. United Kingdom)
Elmilgui, A. (Analytical Services and Materials, Inc. Hampton, VA, United States)
Abdol-Hamid, K. S. (NASA Langley Research Center Hampton, VA, United States)
Massey, S. J. (Eagle Aeronautics, Inc. Hampton, VA, United States)
Date Acquired
August 24, 2013
Publication Date
January 1, 2008
Subject Category
Aircraft Design, Testing And Performance
Report/Patent Number
LF99-6825
Funding Number(s)
WBS: WBS 136905.02.04.04.16.03
CONTRACT_GRANT: GR/S16485
Distribution Limits
Public
Copyright
Public Use Permitted.

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