Abstract
To increase the ratio of lift to drag of guided bomb, a folding multi-surface wing was designed. Computational fluid dynamics (CFD) numerical simulation method and semi-empiric method was used to compare the aerodynamic characteristics of folding multi-surface wing to that of diamond back wing with the same airfoil, chord and surface area. The results indicate the following facts: the lift coefficient of folding multi-surface wing is close to the diamond back wing at small angle of attack, but, at large angle of attack, the lift coefficient of folding multi-surface wing is larger than that of diamond back wing. The folding multi-surface wing has largest ratio of lift to drag. In addition, the rolling damping of folding wing is smaller than that of diamond back wing.
| Original language | English |
|---|---|
| Pages (from-to) | 1024-1027 |
| Number of pages | 4 |
| Journal | Beijing Ligong Daxue Xuebao/Transaction of Beijing Institute of Technology |
| Volume | 30 |
| Issue number | 9 |
| Publication status | Published - Sept 2010 |
Keywords
- Aerodynamic characteristics
- Folding wing
- Guided bomb
- Numerical calculation