| 利用微气泡减小平板摩擦阻力的数值模拟 |
| |
| 引用本文： | 郭峰,毕毅,操戈.利用微气泡减小平板摩擦阻力的数值模拟[J].海军工程大学学报,2008,20(6). |
| |
| 作者姓名： | 郭峰 毕毅 操戈 |
| |
| 作者单位： | 1. 海军工程大学,船舶与动力学院,武汉,430033
2. 海军驻武汉地区某军事代表室,武汉,430060 |
| |
| 基金项目： | 国家部委基金资助项目
|
| |
| 摘 要： | 假定气-液两相流体均匀混合且微气泡在水流中存在滑移运动,运用混合多相流模型对水中运动平板的微气泡减阻过程进行了数值计算,研究了微气泡流的减阻机理,分析了主流速度及气体流量率等对减阻率的影响规律,同时构建了一个减阻率预报数学模型,并指出在微气泡减阻中存在一个与主流速度相对应的饱和气流量.
|
| 关 键 词： | 平板 微气泡 空隙率 减阻 |
Numerical simulation of friction resistance reduction of a flat plate by micro-bubbles |
| |
| GUO Feng,BI Yi,CAO Ge.Numerical simulation of friction resistance reduction of a flat plate by micro-bubbles[J].Journal of Naval University of Engineering,2008,20(6). |
| |
| Authors: | GUO Feng BI Yi CAO Ge |
| |
| Institution: | 1.College of Naval Architecture and Power;Naval Univ.of Engineering;Wuhan 430033;China;2.Naval Representative Office in Wuhan;Wuhan 430060;China |
| |
| Abstract: | The resistance reduction mechanism was studied and the influencing factors such as water speed and gas flux to friction resistance reduction ratio of a flat plate by micro-bubbles were also analyzed by numerical simulation with mixture model on the asssumption that gas and liquid could equably mix and that gas could slip in current.A simple mathematic model was established.The simulation shows that there is a saturated gas flux during the resistance reduction. |
| |
| Keywords: | flat plate micro-bubbles void fraction rate resistance reduction |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
