Parametric Design and Application of Inlet Duct of Marine Waterjet
Parametric Design and Application of Inlet Duct of Marine Waterjet
复制标题
船用喷水推进器进水道参数化设计及应用
DOI：
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发表时间：
2010
期刊：
影响因子：
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通讯作者：
Wang Yong
中科院分区：
文献类型：
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作者：
Wang Yong
为了快速、有效地设计出性能优异的船用喷水推进器进气道，提出了一种基于16个控制参数的船用喷水推进器进气道三维构型的参数化设计方法。该方法用16个控制参数描述进气道的三维外形，用贝塞尔曲线建立进水口的唇口和坡道与船体的边界区域，流量变化剧烈。16个控制参数相互关联，当一个参数变化时，其他参数可根据它们之间的关系自动调整。利用计算流体力学方法对进气管道的水动力性能进行了全面分析，并在此基础上对进气管道结构的分析结果进行了合理的修正；反复使用进气管道几何参数建模和计算流体力学模拟的流体动力性能评价方法，可以快速得到高质量的进气管道设计；并成功地将该参数化设计方法应用于某喷水推进艇进气管道的再设计。
In order to design an outstanding-performance inlet duct of marine waterjet in a quick and effective way,a parametric design method was introduced in this paper.In this method the 3-D configurations of the inlet duct was characterized with sixteen governing parameters.The lip at the intake and the boundary region between ramp and hull were established with Bezier curves,where the flow changed sharply.The sixteen governing parameters were associated mutually.If one parameter changed,the other parameters could be adjusted automatically in consequence according to the relationship among them,which made it possible to create or modify accurately the inlet duct structure in a fast and flexible way.Then the hydrodynamic performance of the inlet duct was analyzed in the round by means of computational fluid dynamics,on the ground of which analysis results of the configuration of the inlet duct was modified in reason.Iterative usage of the parametric modeling of inlet duct geometry and the hydrodynamic performance evaluation by means of computational fluid dynamics simulation could result in an excellent inlet duct design in a fast way.And the parametric design method was applied successfully to redesign the inlet duct of a waterjet-propelled craft.