圆角化对方柱气动性能影响的流场机理1)
|
|
杜晓庆, 田新新, 马文勇, 李二东
|
EFFECTS OF ROUNDED CORNER ON AERODYNAMICS OF SQUARE CYLINDERS AND ITS FLOW MECHANISMS1)
|
|
Du Xiaoqing, Tian Xinxin, Ma Wenyong, Li Erdong
|
|
| 表2 方柱的分离泡特性 |
| Table 2 Characteristics of the separation bubble |
|
| a/(。) | | Sharp | corner | square cylinders | | | Rounded-corner | square cylinders | | | 6S1 /(。） | 6r /(。） | 0S2 /(。) | 6l/(。） | ^ 1 / 6 | S 2 IB | 6S1 /(。） | 6r /(。） | 0S2 /(。） | 6l /(。） | S1 /B | S 2 /B | | 0 | 45 | — | — | — | — | — | 49 | — | — | — | — | — | | 5.4 | 45 | — | — | — | — | — | 50 | — | — | — | — | — | | 7.2 | 45 | — | — | — | — | — | 50 | 127 | 127 | 77 | 0.645 | 0.046 | | 10 | 45 | — | — | — | — | — | 50 | 112 | 129 | 62 | 0.513 | 0.031 | | 12.6 | 45 | 130 | 135 | 85 | 0.643 | 0.074 | 51 | 104 | 129 | 53 | 0.439 | 0.025 | | 15 | 45 | 125 | 135 | 80 | 0.582 | 0.065 | 53 | 101 | 130 | 48 | 0.255 | 0.006 | | 20 | 45 | 113 | 135 | 68 | 0.471 | 0.044 | 54 | 77 | 130 | 23 | 0.233 | 0.003 | | 30 | 45 | 67 | 135 | 22 | 0.154 | 0.014 | 129 | — | — | — | — | — | | 45 | 135 | — | — | — | — | — | 132 | — | — | — | — | — |
|
|
|