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An Experimental Method for Evaluating the PIV Measure Errors and PIV Application in Diesel Spray Measurement
Author(s): 
Pages: 57-61
Year: Issue:  1
Journal: VEHICLE ENGINE

Keyword:  PIV测量误差评价参数优化喷雾测量柴油机;
Abstract: 提出了一种PIV系统(Particle Image Velocimetry)测量误差的实验评价方法,并建立了一套PIV误差实验评价系统.得到了PIV测量误差在空间及时间上的概率分布特性;对PIV实验参数中的几个关键参数进行优化.应用PIV系统,对高压共轨式电控喷射系统的喷雾粒子速度场进行了测量和研究.研究表明,在喷雾过程后期,喷雾体内部出现大尺度的涡流结构;提高喷射压力之后,出现涡流结构的时刻提前.
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