TITLE : THE NUMERICAL TRACKING OF THE CANARD TIP VORTICES
OF A MISSILE MODEL
BY : Bureau for Mechanical Engineering, CG du Toit
Dept of Mechanical Engineering, TW von Backstrom
University of Stellenbosch CH Pool
PHOENICS was used to model the paths of vortices formed by the front
wings (canards) of a missile in a wind tunnel
- Three-Dimensional steady flow
- Cartesian grid, with canards represented by porosity
- The k-e turbulence model was used
- Wingtip vortices can induce a rolling moment on the tail fins.
- This can counteract the rolling moment exerted by the canards,
hampering the roll stabilisation of the missile.
The pictures are as follows:
Missile Model with Canards. In the simulation the tail fins were ignored.
Transverse positions of upper vortices. The simulated results are compared with some experimental data.
Transverse positions of lower vortices. The simulated results are compared with some experimental data.
Vertical positions of all vortices. The simulated results are compared with some experimental data.
- It has been demonstrated that the canard tip vortices of a missile
model can be tracked numerically using PHOENICS.
- The numerical results compare favourably with the experimental data.
Further information on the PHOENICS simulation may be obtained in:
The Numerical Tracking of the Canard Tip Vortices of a
3rd South African Aeronautical Engineering Conference
Proceedings, August 1991