• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Naval Architecture and Ocean Engineering >Two-dimensional modeling of stepped planing hulls with open and pressurized air cavities
【24h】

Two-dimensional modeling of stepped planing hulls with open and pressurized air cavities

机译：具有开放和加压气孔的阶梯式滑行船体的二维建模

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

ABSTRACT A method of hydrodynamic discrete sources is applied for two-dimensional modeling of stepped planing surfaces. The water surface deformations, wetted hull lengths, and pressure distribution are calculated at given hull attitude and Froude number. Pressurized air cavities that improve hydrodynamic performance can also be modeled with the current method. Presented results include validation examples, parametric calculations of a single-step hull, effect of trim tabs, and performance of an infinite series of periodic stepped surfaces. It is shown that transverse steps can lead to higher lift-drag ratio, although at reduced lift capability, in comparison with a stepless hull. Performance of a multi-step configuration is sensitive to the wave pattern between hulls, which depends on Froude number and relative hull spacing.
机译：摘要一种流体动力离散源方法被用于阶梯式平面的二维建模。在给定的船体姿态和弗洛德数下，计算水面变形，船体湿润长度和压力分布。改善水动力性能的增压空气腔也可以用当前方法建模。呈现的结果包括验证示例，单步船体的参数计算，修整翼片的效果以及无穷系列的周期性阶梯表面的性能。结果表明，与无级船体相比，横向梯级可以导致更高的升阻比，尽管提升能力降低。多步配置的性能对船体之间的波动模式敏感，这取决于弗洛德数和相对船体间距。

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