This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Lagally Force on an Automotive Model in a Solid-Wall Wind Tunnel
Technical Paper
2016-01-1622
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Lagally’s theorem is used to evaluate the increments to aerodynamic forces on automotive models, tested in solid-wall wind tunnels. The strengths of the model-representing singularities, pre-requisite for the application of the theory, are obtained from experimental wall pressure data, using an influence matrix method. The technique is demonstrated on the drag force acting on full-size and half-size truck models, measured in the same test section.
Authors
Topic
Citation
Mokry, M., "Lagally Force on an Automotive Model in a Solid-Wall Wind Tunnel," SAE Technical Paper 2016-01-1622, 2016, https://doi.org/10.4271/2016-01-1622.Also In
References
- Lagally , M. Berechnung der Kräfte und Momente die strömende Flüssigkeiten auf ihre Begrenzung ausüben Z. Angew. Math. Mech. 2 409 422 1922
- Landweber , L. and Yih , C.S. Forces, Moments, and Added Masses for Rankine Bodies Journal of Fluid Mechanics 1 319 336 1956
- Miloh , T. Maneuvering Hydrodynamics of Ellipsoidal Forms, Tech. Univ. Hamburg-Harburg Rep.357 1977
- SAE Closed-Test-Section Wind Tunnel Blockage Corrections for Road Vehicles SAE SP-1176 18 23 1996
- Garner , H.C. et al. Subsonic Wind Tunnel Wall Corrections AGARDograph 109 319 321 1966
- Ewald , B.F.R. Wind Tunnel Wall Corrections AGARDograph 336 1.9 1.12 1998
- Hackett , J.E. , Wilsden , D.J. , and Lilley , D.E. Estimation of Tunnel Blockage from Wall Pressure Signatures: A Review and Data Correlation NASA CR-15-224 1979
- Hackett , J.E. Tunnel-Induced Gradients and Their Effect on Drag AIAA Journal 34 2575 2581 1996
- Marshall , J.S. Inviscid Incompressible Flow 137 139 172 173 246 249 J. Wiley 2001
- Milne-Thomson , L.M. Theoretical Hydrodynamics 2 nd 215 216 Macmillan 1950
- Prandtl , L. and Tietjens , O.G. Applied Hydro- and Aerodynamics 118 123 McGraw-Hill 1934
- Zucker , R.D. Lagally’s Theorem and the Lifting Body Problem Journal of Ship Research 135 140 1970
- Cooper , K. and Mokry , M. An Influence Matrix Method for Determining Boundary Interference on Automotive Models in Solid-Wall Wind Tunnels SAE Technical Paper 2014-01-0611 2014 10.4271/2014-01-0611
- Schaub , U. , Olson , M. , and Raimondo , S. Correction of Wind Tunnel Force Data for Yawed Full and Half-Scale Truck Models Using a Modified Pressure-Signature Method SAE Technical Paper 900187 1990 10.4271/900187
- Olson , M. and Schaub , U. Aerodynamics of Trucks in Wind Tunnels: The Importance of Replicating Model Form, Model Detail, Cooling System and Test Conditions SAE Technical Paper 920345 1992 10.4271/920345
- Mébarki , Y. , Mathias , C. , Leuschen , J. and McAuliffe , B. Wall Correction Methods for Truck Testing in the NRC 9m Wind Tunnel LTR-AL-2010-097 NRC Aerospace 2010
- Mokry , M. , Cooper , K.R. , Mébarki , Y. , and Leuschen , J. An Influence Matrix Method for Determining Boundary Interference on Truck Models in the NRC 9m Wind Tunnel LTR-AL-2013-0022 NRC Aerospace 2013