|
| Numerical Analysis on Effects of Rotor Icing on Helicopter Performance in Hover |
| Received:August 21, 2019 Revised:August 21, 2019 |
| View Full Text View/Add Comment Download reader |
| DOI：10.7643/issn.1672-9242.2020.02.018 |
| KeyWord:icing on rotor numerical simulation icing conditions hover efficiency |
| Author | Institution |
| TANG Yang-gang |
Aircraft Strength Research Institute of China, Xi¢an , China |
| TANG Hu |
Aircraft Strength Research Institute of China, Xi¢an , China |
| WU Jing-tao |
Aircraft Strength Research Institute of China, Xi¢an , China |
|
| Hits: |
| Download times: |
| Abstract: |
| The paper aims to study the effects of icing on rotor on helicopter performance in hover. The UH-1H helicopter with sufficient experimental data was selected as an example. The flow field of rotor was calculated with Fluent. After convergence, the flow field file was imported into Fensap-ICE for droplet impingement and ice accretion calculation to obtain the rotor shape after icing. Then, the flow field of rotor with ice accretion was calculated with Fluent to analyze the effect of icing on rotor on helicopter performance in hover. By changing the icing conditions, influences of different icing conditions on helicopter hover efficiency was analyzed. The results showed that the icing on rotor significantly reduced the helicopter hover efficiency, and the hover efficiency decreased with the increase of ice accretion time, median volume diameter (MVD) and liquid water content (LWC). Different icing conditions have different effects on the downtrend of helicopter hover efficiency. With the increase of icing time, the hover efficiency decreases linearly. But with the increase of MVD and LWC, the downtrend of hovering efficiency gradually slows down, and the decline gradually decreases. |
| Close |
|
|
|