TY - GEN
T1 - Aerodynamic simulation of heavy trucks with rotating wheels
AU - Sreenivas, Kidambi
AU - Pankajakshan, Ramesh
AU - Nichols, D. Stephen
AU - Mitchell, Brent C.J.
AU - Taylor, Lafayette K.
AU - Whitfield, David L.
PY - 2006
Y1 - 2006
N2 - Aerodynamic simulations were carried out for the Ground Transportation System model, a 1/8th scale tractor-trailer model, that was tested in the NASA Ames 7'×10' tunnel. The computed forces and pressure coefficients are compared to experiment Detailed comparisons are also carried out for the wake in the symmetry plane of the model. A DES version of the two equation k-ε/k-ω hybrid turbulence model is shown to predict the single vortex structure observed in the experiment. Simulations are also carried out for an isolated rotating wheel and the results are compared to experiment data. A theoretically predicted jet arising at the contact patches was observed computationally with its magnitude matching the theoretical predictions. Representative simulations were also carried out for a tractor-trailer model with rotating wheels.
AB - Aerodynamic simulations were carried out for the Ground Transportation System model, a 1/8th scale tractor-trailer model, that was tested in the NASA Ames 7'×10' tunnel. The computed forces and pressure coefficients are compared to experiment Detailed comparisons are also carried out for the wake in the symmetry plane of the model. A DES version of the two equation k-ε/k-ω hybrid turbulence model is shown to predict the single vortex structure observed in the experiment. Simulations are also carried out for an isolated rotating wheel and the results are compared to experiment data. A theoretically predicted jet arising at the contact patches was observed computationally with its magnitude matching the theoretical predictions. Representative simulations were also carried out for a tractor-trailer model with rotating wheels.
UR - http://www.scopus.com/inward/record.url?scp=34250729226&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:34250729226
SN - 1563478072
SN - 9781563478079
T3 - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
SP - 16754
EP - 16764
BT - Collection of Technical Papers - 44th AIAA Aerospace Sciences Meeting
T2 - 44th AIAA Aerospace Sciences Meeting 2006
Y2 - 9 January 2006 through 12 January 2006
ER -