| タイトル | Application of two procedures for dual-point design of transonic airfoils |
| 本文（外部サイト） | http://hdl.handle.net/2060/19950005763 |
| 著者（英） | Allison, Dennis O.; Campbell, Richard L.; Mineck, Raymond E. |
| 著者所属（英） | NASA Langley Research Center |
| 発行日 | 1994-09-01 |
| 言語 | eng |
| 内容記述 | Two dual-point design procedures were developed to reduce the objective function of a baseline airfoil at two design points. The first procedure to develop a redesigned airfoil used a weighted average of the shapes of two intermediate airfoils redesigned at each of the two design points. The second procedure used a weighted average of two pressure distributions obtained from an intermediate airfoil redesigned at each of the two design points. Each procedure was used to design a new airfoil with reduced wave drag at the cruise condition without increasing the wave drag or pitching moment at the climb condition. Two cycles of the airfoil shape-averaging procedure successfully designed a new airfoil that reduced the objective function and satisfied the constraints. One cycle of the target (desired) pressure-averaging procedure was used to design two new airfoils that reduced the objective function and came close to satisfying the constraints. |
| NASA分類 | AERODYNAMICS |
| レポートNO | 95N12176
NASA-TP-3466
L-17268
NAS 1.60:3466 |
| 権利 | No Copyright |
