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Pressure-Sensitive Paint for Automotive Aerodynamics
ISSN: 0148-7191, e-ISSN: 2688-3627
Published March 05, 2001 by SAE International in United States
Annotation ability available
Event: SAE 2001 World Congress
Measurement of static pressure over an automotive body is tedious work. The preparation of the model can be long and the spatial resolution in high curvature regions, where separations occur, is poor. To overcome these intrinsic drawbacks it is necessary to use another nonintrusive experimental technique. We show in this paper that the Pressure Sensitive Paint (PSP) fulfills the requirements and is reliable for automotive applications. We consider a simplified 1/4-scale model of a Peugeot 206 with a modified back slant to enhance the longitudinal vortices. The PSP measurements are compared to standard pressure ports measurements and to CFD computations. We find good quantitative agreement between pressure ports and PSP measurements and a good qualitative and quantitative agreement between PSP and the computations over the entire slant surface. The high spatial resolution and high sensitivity of this technique allows very good description of the flow over any complex surfaces even at low velocity. Considering that PSP does not need any particular instrumentation of the car, it is well adapted to the constraints of the automotive industry and appears to be a very attractive improvement of the traditional pressure taps.
CitationAider, J., Elena, L., Le Sant, Y., Bouvier, F. et al., "Pressure-Sensitive Paint for Automotive Aerodynamics," SAE Technical Paper 2001-01-0627, 2001, https://doi.org/10.4271/2001-01-0627.
SAE 2001 Transactions Journal of Passenger Cars - Mechanical Systems
Number: V110-6 ; Published: 2002-09-15
Number: V110-6 ; Published: 2002-09-15
- Hucho, W. H., Janssen, L. J. and Schwarz, G, The wind tunnel’s ground plane boundary layer – its interference with the flow underneath cars, SAE Paper 750066 in SAE/PT678/16 “Automotive Aerodynamics”, 1978.
- Paul, J. C. and LaFond, J.G, Analysis and design of automobile forebodies using potential flow theory and a boundary layer separation criterion, SAE Paper 830999, Vehicle Aerodynamic developments SP 545, 1983.
- Onorato, M, Costelli, A.F. and Garonne, A., Drag measurement through wake analysis, SAE Paper 840302, Vehicle Aerodynamics SP 569.
- Han, T., Sumantran, V., Harris, C., Kuzmanov, T. Huebler, M. and Zak, T., Flow-field simulations of three simplified shapes and comparisons with experimental measurements, SAE paper 960678, Vehicle Aerodynamics, 1996.
- Aider J. L., Dubuc L., Hulin G., Elena L., “Experimental and numerical investigation of the flow over a simplified vehicle shape”, Proceedings of the 3rd MIRA International Vehicle Aerodynamics Conference (2000).
- Shaw R., Influence of hole dimensions on static pressure measurements. J. FLuid Mech., Vol. 7, 1960, pp 550–564
- Erwin J., Experimental techniques in Aerodynamics of turbine and compressors ‚ section D, Vol. X of High Speed Aerodynamics and Jet Propulsion. Princeton University Press, 1964.
- Elena, L., Maistret, E., Bohineust X., Développement et mise en œuvre des techniques de validation de modèles numériques en aérodynamique, Journées d’Etude de la SIA : Aérodynamique, Aéroacoustique Aérothermique Automobile et Ferroviaire, 5–6 nov. 1996, Courbevoie.
- Crites R.C., Pressure Sensitive Paint Technique, VKI Lecture Series 1993–05, Measurements techniques, April 1993.
- Troyanovsky I., Sadovskii N., Kuzmin M., Mosharov V., Orlov A., Radchenko V., Phonov S., Set of luminescence pressure sensors for aerospace research, Sensors and Actuators B, 11 (1993) 201–206
- Donovan J.F., Morris M. J., Pal A., Benne M. E., Crites R. C., Data Analysis Techniques for Pressure-and Temperature-Sensitive Paint, 31st Aerospace Sciences Meeting & Exhibit, Paper AIAA 93-0176, 1993
- Engler R.H., Klein C., First Results Using the New DLR PSP System - Intensity and Lifetime Measurements, Wind Tunnels and Wind Tunnel Test Techniques, 14–16 April 1997, Cambridge, UK, Paper 43
- Lyonnet M., Deléglise B., Grenat G., Bykov A., Mosharov V., Orlov A., Fonov S., The Two-Component PSP Investigation on a civil aircraft model in S2Ma Wind Tunnel, 81st AGARD/FDP, 1997, Paper 30
- Sellers M.E., Application of Pressure Sensitive Paint for Determining Aerodynamic Loads on a Scale of the F-16C, 21st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2000, Paper AIAA 2000–2528.
- Hallard R., Mérienne M.-C., Aerospike Nozzle Tests, 3rd Symposium on Aerothermodynamics for Space Vehicles, 1998.
- Nakakita K., Yamazaki T., Asai K., Teduka N., Fuji A., Kameda M., Pressure Sensitive Paint Measurement in a Hypersonic Shock Tunnel, 21st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2000, Paper AIAA 2000–2523
- Winslow N.A., Carroll B.F., Setzer F.M., Frequency Response of Pressure Sensitive Paints, 27th AIAA Fluid Dynamic Conference, 1996, Paper AIAA 96-1967
- Asai K., Amao Y., Iijima Y., Okura I., Nishide H., Novel Pressure-Sensitive Paint for Cryogenic and Unsteady Wind Tunnel Testing, 21st AIAA Aerodynamic Measurement Technology and Ground Testing Conference, 2000, Paper AIAA 2000–2527
- Brown O.C., Metha R. D., Cantwell B. J., Low-Speed Flow Studies Using the Pressure Sensitive Paint Technique, 81st AGARD/FDP, 1997
- Bouvier F., Le Sant Y., Mérienne M-C., A New Skin Friction Technique Using Pressure Sensitive Paint, Aerodynamics Research Conference 2001, 9th–10th April, Royal Aeronautical Society, Londres, 2001 (to be published)
- Bell J.H., McLachlan B. G., Image Registration for Luminescent Paint Sensors, 31st Aerospace Sciences Meeting & Exhibit, Paper AIAA 93-0178, 1993
- Le Sant Y., Mérienne M.-C., An Image Resection Method Applied to Mapping Techniques, 16th ICIASF, Dayton, Ohio, 1995.
- Ruyten W., Model Attitude Measurement with an Eight Camera Pressure Sensitive Paint System, 38th Aerospace Sciences Meeting and Exhibit, 2000, Paper 2000-0831
- Ahmed S.R., Ramm G. and Falting G., Some salient features of the time-average ground vehicle wake, Society of Automotive Engineers, Paper 840300, 1984.
- Morel T., Aerodynamic drag of bluff body shapes characteristic of hatchback cars, Society of Automotive Engineers, Paper 780267, 1978.