is assigned as the domain fluid. The boundary conditions for the simulation are shown in Table 3.
Table 2: Boundary Conditions for Ahmed Body simulation¶
The free stream velocity of the simulation is U=63.7m/s
, so that the Reynolds number based on the height of the body H
. It is of the same order of magnitude used in the original experiment of Ahmed and Ramm .
The drag coefficient is defined as
is the projected area of the Ahmed body in streamwise direction and FD the drag force. The time-averaged drag force was determined by integration of surface pressure and shear stress over the entire Ahmed body. The resulting drag coefficient of the Ahmed body was computed to be 0.306
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Last updated: January 29th, 2019
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