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    Methods of predicting cavitation damage
    2.
    发明申请
    Methods of predicting cavitation damage 失效
    预测空化损伤的方法

    公开(公告)号：US20080215255A1

    公开(公告)日：2008-09-04

    申请号：US12000148

    申请日：2007-12-10

    申请人： Alan R. Stockner ,  Daniel Richard Ibrahim ,  Manolis Gavaises ,  Andreas Theodorakakos

    发明人： Alan R. Stockner ,  Daniel Richard Ibrahim ,  Manolis Gavaises ,  Andreas Theodorakakos

    IPC分类号： G06F19/00

    CPC分类号： G06F17/5018 ,  G06F2217/16

    摘要： A method is provided for predicting the likelihood of cavitation damage occurring on a surface of a hydrodynamic component. The method may include creating a computational fluid dynamics (CFD) simulation of the hydrodynamic component, wherein creating the CFD simulation includes simulating a fluid proximal to the surface of the hydrodynamic component. The method may also include selecting a location on the surface of the hydrodynamic component, wherein the selected location is exposed to the simulated fluid. The method may further include determining the mean pressure and standard deviation, the standard deviation of the rate of change in pressure, the mean void percentage and standard deviation, and the standard deviation of the rate of change in void percentage for the fluid at the selected surface location. The method may also include analyzing at least one of the mean pressure and standard deviation, the standard deviation of the rate of change in pressure, the mean void percentage and standard deviation, and the standard deviation of the rate of change in void percentage for the fluid at the selected surface location to predict the likelihood of cavitation damage occurring at the selected surface location.

    摘要翻译： 提供了一种用于预测在流体动力学部件的表面上发生气蚀损伤的可能性的方法。 该方法可以包括创建流体动力部件的计算流体动力学（CFD）模拟，其中创建CFD模拟包括模拟靠近流体动力部件表面的流体。 该方法还可以包括选择流体动力部件的表面上的位置，其中所选择的位置暴露于模拟流体。 该方法还可以包括确定平均压力和标准偏差，压力变化率的标准偏差，平均空隙百分比和标准偏差，以及所选择的流体的空隙百分比变化率的标准偏差 表面位置。 该方法还可以包括分析平均压力和标准偏差中的至少一个，压力变化率的标准偏差，平均空隙百分比和标准偏差以及空隙率的变化率的标准偏差 流体，以预测在所选择的表面位置处发生气蚀损伤的可能性。

    Methods of predicting cavitation damage
    3.
    发明授权
    Methods of predicting cavitation damage 失效
    预测空化损伤的方法

    公开(公告)号：US07912687B2

    公开(公告)日：2011-03-22

    申请号：US12000148

    申请日：2007-12-10

    申请人： Alan Ray Stockner ,  Daniel Richard Ibrahim ,  Manolis Gavaises ,  Andreas Theodorakakos

    发明人： Alan Ray Stockner ,  Daniel Richard Ibrahim ,  Manolis Gavaises ,  Andreas Theodorakakos

    IPC分类号： G06F7/60 ,  G06F17/10

    CPC分类号： G06F17/5018 ,  G06F2217/16

    摘要： A method is provided for predicting the likelihood of cavitation damage occurring on a surface of a hydrodynamic component. The method may include creating a computational fluid dynamics (CFD) simulation of the hydrodynamic component, wherein creating the CFD simulation includes simulating fluid flowing relative to the hydrodynamic component. The method may also include selecting a location on the surface of the hydrodynamic component, wherein the selected location is exposed to the simulated fluid flow. The method may also include determining and analyzing at least one of a mean pressure and standard deviation, a standard deviation of the rate of change in pressure, a mean void percentage and standard deviation, and a standard deviation of the rate of change in void percentage for the flowing fluid at the selected surface location to predict the likelihood of cavitation damage occurring at the selected surface location.

    摘要翻译： 提供了一种用于预测在流体动力学部件的表面上发生气蚀损伤的可能性的方法。 该方法可以包括创建流体动力部件的计算流体动力学（CFD）模拟，其中创建CFD模拟包括模拟相对于流体动力部件流动的流体。 该方法还可以包括选择流体动力部件的表面上的位置，其中所选择的位置暴露于模拟流体流。 该方法还可以包括确定和分析平均压力和标准偏差中的至少一个，压力变化率的标准偏差，平均空隙百分比和标准偏差以及空隙率变化率的标准偏差 对于所选择的表面位置处的流动流体来预测在所选择的表面位置处发生气穴破坏的可能性。