Abstract
Based on the validation of wind tunnel experiment, numerical simulation on single projectile and projectile with ribbons-parachute were explored. Polyhedral mesh was adopted and the supersonic flows were conducted using finite volume method and SST turbulence model. Effects of the distance from projectile base to ribbons-parachute on the system drag performance were obtained. The influence mechanism was studied based on flow field structure. The result shows that there is a critical distance which has significant influence on the system drag. The critical distance can be determined by the gradient of turbulence kinetic energy of in wake flow.
| Original language | English |
|---|---|
| Pages (from-to) | 121-123 |
| Number of pages | 3 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 33 |
| Issue number | SUPPL.2 |
| Publication status | Published - Dec 2013 |
Keywords
- Drag loss
- Numerical simulation
- Ribbons-parachute
- Supersonic wake