双桨船螺旋桨空泡脉动压力的试验及数值研究
U661.31; 为研究高速双桨船螺旋桨空泡状态下的脉动压力特性,在深水拖曳水池中开展了螺旋桨敞水试验,在大型循环水槽中使用完整船模开展了螺旋桨船后水动力性能、脉动压力测量和空泡观测试验.试验结果表明,脉动压力的最大幅值随螺旋桨转速的增加而增大,不稳定片空泡会导致脉动压力高阶分量增加;随着空泡的发展,脉动压力幅值最大位置逐渐向船体内侧移动,螺旋桨达到一定转速后,其脉动压力分布基本保持不变.采用剪切应力输运(SST) k-ω模型及流体体积(VOF)方法,建立了螺旋桨脉动压力和空泡的计算流体动力学(CFD)数值计算方法,并通过计算与试验结果的对比发现,该方法的计算结果在无空泡和高转速工况下与试验结...
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| Published in | 上海交通大学学报 Vol. 54; no. 8; pp. 831 - 838 |
|---|---|
| Main Authors | , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
海军工程大学舰船与海洋学院,武汉430033
01.08.2020
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1006-2467 |
| DOI | 10.16183/j.cnki.jsjtu.2019.069 |
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| Abstract | U661.31; 为研究高速双桨船螺旋桨空泡状态下的脉动压力特性,在深水拖曳水池中开展了螺旋桨敞水试验,在大型循环水槽中使用完整船模开展了螺旋桨船后水动力性能、脉动压力测量和空泡观测试验.试验结果表明,脉动压力的最大幅值随螺旋桨转速的增加而增大,不稳定片空泡会导致脉动压力高阶分量增加;随着空泡的发展,脉动压力幅值最大位置逐渐向船体内侧移动,螺旋桨达到一定转速后,其脉动压力分布基本保持不变.采用剪切应力输运(SST) k-ω模型及流体体积(VOF)方法,建立了螺旋桨脉动压力和空泡的计算流体动力学(CFD)数值计算方法,并通过计算与试验结果的对比发现,该方法的计算结果在无空泡和高转速工况下与试验结果吻合较好.由于不能很好地对不稳定片空泡进行模拟,在其出现时脉动压力计算值偏大.计算值的衰减和试验中两桨的相位差导致靠近船体内侧的监测点脉动压力误差较大. |
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| AbstractList | U661.31; 为研究高速双桨船螺旋桨空泡状态下的脉动压力特性,在深水拖曳水池中开展了螺旋桨敞水试验,在大型循环水槽中使用完整船模开展了螺旋桨船后水动力性能、脉动压力测量和空泡观测试验.试验结果表明,脉动压力的最大幅值随螺旋桨转速的增加而增大,不稳定片空泡会导致脉动压力高阶分量增加;随着空泡的发展,脉动压力幅值最大位置逐渐向船体内侧移动,螺旋桨达到一定转速后,其脉动压力分布基本保持不变.采用剪切应力输运(SST) k-ω模型及流体体积(VOF)方法,建立了螺旋桨脉动压力和空泡的计算流体动力学(CFD)数值计算方法,并通过计算与试验结果的对比发现,该方法的计算结果在无空泡和高转速工况下与试验结果吻合较好.由于不能很好地对不稳定片空泡进行模拟,在其出现时脉动压力计算值偏大.计算值的衰减和试验中两桨的相位差导致靠近船体内侧的监测点脉动压力误差较大. |
| Author | 熊鹰 黄政 徐野 |
| AuthorAffiliation | 海军工程大学舰船与海洋学院,武汉430033 |
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| Title | 双桨船螺旋桨空泡脉动压力的试验及数值研究 |
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