...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Ocean Engineering >CFD based vortex generator design and full-scale testing for wake non-uniformity reduction
【24h】

CFD based vortex generator design and full-scale testing for wake non-uniformity reduction

机译：基于CFD的涡流发生器设计和全面测试，可降低尾流不均匀性

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Propeller-induced vibration on ships may originate from separation and wake non-uniformity and can be dealt with stem form redesign, wake adapted propeller design or wake modification devices such as fins, ducts or vortex generators. For an existing ship, the retrofit options are limited and vortex generators are the most cost efficient measure with quick and easy application. However, selection of the design parameters such as size, location and angle of attack relative to the flow are still not straightforward and can be very costly to be evaluated by model tests or full scale investigations. RANS based CFD methods can be used effectively to select these parameters. Current research presents a methodology through a full-scale test case consisting of initial numerical flow calculations and full scale testing, CFD calculations, final numerical flow calculations and full scale testing which shows significant improvements on the wake non-uniformity hence the suffered shipboard vibration.
机译：螺旋桨在船上引起的振动可能源于分离和尾流不均匀性，可以通过重新设计茎杆形状，适应尾流的螺旋桨设计或尾流修正装置（例如鳍片，导管或涡流发生器）来解决。对于现有船舶，翻新选项有限，涡旋发生器是最经济高效的措施，可快速简便地应用。但是，选择设计参数（例如相对于流的大小，位置和迎角）仍然不是一件容易的事，并且通过模型测试或全面调查可能会非常昂贵。基于RANS的CFD方法可以有效地选择这些参数。当前的研究通过全尺寸测试用例提出了一种方法，该用例包括初始数值流计算和全尺寸测试，CFD计算，最终数值流计算和全尺寸测试，显示了尾流不均匀性的显着改善，从而减轻了船上振动的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号