The flow around generic wheels in wheel housings used in previous experimental investigations is studied using large eddy simulations (LES). A comparison is given here of the results of the simulations with existing experimental data and previous results of RANS simulations. Both instantaneous and time-averaged flows are described, showing agreement with previous knowledge and adding new insight in flow physics. Two different widths of the wheel housing are used in the simulations, and their influence on the flows is studied. The present work shows that the width of the wheel housing has an influence on flows on both the inside and the outside of the wheelhouse.

References

References
1.
Wickern
,
G.
,
Zwicker
,
K.
, and
Pfadenhauer
,
M.
, 1997, “
Rotating Wheels—Their Impact on Wind Tunnel Test Techniques and on Vehicle Drag Results
,” SAE Paper No. 970733.
2.
Elofsson
,
P.
, and
Bannister
,
M.
, 2002, “
Drag Reduction Mechanisms Due to Moving Ground and Wheel Rotation in Passenger Cars
,” SAE Paper No. 2002-01-0531.
3.
Cogotti
,
A.
, 1983, “
Aerodynamic Characteristics of Car Wheels: In Technological Advances in Vehicle Design Series. In: SP3 Impact of Aerodynamics on Vehicle Design
,” Int. J. Veh. Des., pp.
173
196
.
4.
Mears
,
A. P.
,
Crossland
,
S. C.
, and
Dominy
,
R. G.
, 2004, “
An Investigation Into the Flow-Field About an Exposed Racing Wheel
,” SAE Paper No. 2004-01-0446.
5.
Wäschle
,
A.
,
Cyr
,
S.
,
Kuthada
,
T.
, and
Wiedemann
,
J.
, 2004, “
Flow Around an Isolated Wheel–Experimental and Numerical Comparison of Two CFD Codes
,” SAE Paper No. 2004-01-0445.
6.
Saddington
,
A. J.
,
Knowles
,
R. D.
, and
Knowles
,
K.
, 2007, “
Laser Doppler Anemometry Measurements in the Near-Wake of an Isolated Formula One Wheel
,”
Exp. Fluids
,
42
, pp.
671
681
.
7.
McManus
,
J.
, and
Zhang
,
X.
, 2006, “
A Computational Study of the Flow Around an Isolated Wheel in Contact With the Ground
,”
ASME J. Fluids Eng.
,
128
, pp.
520
530
.
8.
Krajnović
,
S.
, and
Davidson
,
L.
, 2003, “
Numerical Study of the Flow Around the Bus-Shaped Body
,”
ASME J. Fluids Eng.
,
125
, pp.
500
509
.
9.
Wiedemann
,
J.
, 1996, “
The Influence of Ground Simulation and Wheel Rotation on Aerodynamic Drag Optimization–Potential for Reducing Fuel Consumption
,” SAE Paper No. 960672.
10.
Oswald
,
L. J.
, and
Browne
,
A. L.
, 1981, “
The Airflow Field Around an Operating Tire and Its Effects on Tire Power Loss
,” Technical Report No. 810166.
11.
Fabijanic
,
J.
, 1996, “
An Experimental Investigation of Wheel-Well Flows
,” SAE Paper No. 960901.
12.
Fabijanić
,
J.
, and
George
,
A. R.
, 1996, “
An Experimental Investigation of the Aerodynamics of Automobile Wheel Wells
,” Technical Report No. 962475.
13.
Krajnović
,
S.
, 2009, “
LES of Flows Around Ground Vehicles and Other Bluff Bodies
,”
Philos. Trans. R. Soc. London, Ser. A.
,
367
(
1899
), pp.
2917
2930
.
14.
Regert
,
T.
, and
Lajos
,
T.
, 2007, “
Description of Flow Field in the Wheelhouses of Cars
,”
Int. J. Heat Fluid Flow
,
28
, pp.
616
629
.
15.
Regert
,
T.
, 2009, private communication.
16.
Axon
,
L.
,
Garry
,
K.
, and
Howell
,
J.
, 1999, “
The influence of Ground Condition on the Flow Around a Wheel Located Within a Wheelhouse Cavity
,” SAE Paper No. 1999-01-0806.
17.
Skea
,
A. F.
,
Bullen
,
P. R.
, and
Qiao
,
J.
, 2000, “
CFD Simulations and Experimental Measurements of the Flow Over a Rotating Wheel in a Wheel Arch
,” SAE Paper No. 2000-01-0487.
18.
Thivolle-Cazat
,
E.
, and
Gilliéron
,
P.
, 2006, “
Flow Analysis Around a Rotating Wheel
,”
13th Int. Symposium on Applications of Laser Techniques to Fluid Mechanics
,
Lisbon
,
Portugal
, 26–29 June.
19.
Wäschle
,
A.
, 2007, “
The Influence of Rotating Wheels on Vehicle Aerodynamics- Numerical and Experimental Investigations
,” SAE Paper No. 2007-01-0107.
20.
Krajnović
,
S.
, and
Davidson
,
L.
, 2005, “
Flow Around a Simplified Car, Part 1: Large Eddy Simulation
,”
ASME J. Fluids Eng.
,
127
, pp.
907
918
.
21.
Krajnović
,
S.
, and
Fernandes
,
J.
, 2011, “
Numerical Simulation of the Flow Around a Simplified Vehicle Model With Active Flow Control
,”
Int. J. Heat Fluid Flow.
,
32
(
1
), pp.
192
200
.
22.
Smagorinsky
,
J.
, 1963, “
General Circulation Experiments With the Primitive Equations
,”
Mon. Weather Rev.
,
91
(
3
), pp.
99
165
.
23.
Krajnović
,
S.
, and
Davidson
,
L.
, 2002, “
Large Eddy Simulation of the Flow Around a Bluff Body
,”
AIAA J.
,
40
(
5
), pp.
927
936
.
24.
Sujudi
,
D.
, and
Haimes
,
R.
, 1995, “
Identification of Swirling Flow in 3-D Vector Fields
,” AIAA Paper 95-1715.
25.
Morelli
,
A.
, 2000, “
A New Aerodynamic Approach to Advanced Automobile Basic Shapes
,” SAE Paper No. 200-01-0491.
26.
Mercker
,
E.
, and
Berneburg
,
H.
, 1992, “
On the Simulation of Road Driving of a Passenger Car in a Wind Tunnel Using a Moving Belt and Rotating Wheels
,”
3rd International Conference on Innovation and Reliability
,
Florence, Italy
.
27.
Basara
,
B.
,
Beader
,
D.
, and
Przulj
,
V. P.
, 2000, “
Numerical Simulation of the Air Flow Around a Rotating Wheel
,”
3rd MIRA International Conference on Vehicle Aerodynamics
,
Rugby, UK
.
28.
Skea
,
A. F.
,
Bullen
,
P. R.
, and
Qiao
,
J.
, 1998, “
The Use of CFD to Predict the Air Flow Around a Rotating Wheel
,”
2rd MIRA International Conference on Vehicle Aerodynamics
,
Birmingham, UK
.
29.
Spalart
,
P. R.
, 2000, “
Strategies for Turbulence Modelling and Simulations
,”
Int. J. Heat and Fluid Flow
,
21
(
3
), pp.
252
263
.
30.
Krajnović
,
S.
, 2002, “
Large Eddy Simulations for Computing the Flow Around Vehicles
,” Ph.D. thesis, Dept. of Thermo and Fluid Dynamics, Chalmers University of Technology, Gothenburg.
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