A general approach to evaluate the ensemble cross-correlation response for PIV using Kernel density estimation
A general approach to evaluate the ensemble cross-correlation response for PIV using Kernel density estimation
复制标题
使用核密度估计评估 PIV 集合互相关响应的通用方法
DOI:
10.1007/s00348-018-2627-8
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发表时间:
2018
影响因子:
2.4
通讯作者:
Theunissen R
中科院分区:
文献类型:
--
作者:
Theunissen R
AbstractCross-correlation in particle image velocimetry is well known to behave as a non-linear operator, depending heavily on the distribution of tracer images and image quality. While analytical descriptors of the correlation response have so far been dealt with for simplistic flow cases, in this work a methodology is presented based on Kernel density estimation to retrieve the inherent correlation response to any deterministic flow field. The new approach bypasses the need for Monte-Carlo simulations and its inherent sensitivity to parameter settings make it a more efficient alternative to analyse filtering of the underlying velocity field due to image cross-correlation. The derivation of the underlying equations is presented and a numerical assessment corroborates the suitability of the approach to mimic ensemble correlation.Graphical abstract
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DOI:
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发表时间:
2013
期刊:
影响因子:
--
作者:
S. Rahgozar;Y. Maciel;P. Schlatter
通讯作者:
P. Schlatter
影响因子:
2.4
作者:
A. Sciacchitano;D. Neal;Barton L Smith;S. Warner;P. Vlachos;B. Wieneke;F. Scarano
通讯作者:
A. Sciacchitano;D. Neal;Barton L Smith;S. Warner;P. Vlachos;B. Wieneke;F. Scarano
DOI:
--
发表时间:
2018
期刊:
影响因子:
--
作者:
J. Westerweel
通讯作者:
J. Westerweel
DOI:
--
发表时间:
2001
期刊:
影响因子:
--
作者:
M. Olsen;R. Adrian
通讯作者:
R. Adrian
影响因子:
2.4
作者:
Kaehler, Christian J.;Scharnowski, Sven;Cierpka, Christian
通讯作者:
Cierpka, Christian