Abstract Dual-tip phase-detection intrusive probes are the most widely used experimental technique for measuring interfacial velocities in highly aerated flows. Recently, we have introduced an adaptive window cross-correlation (AWCC) technique, which allows for the estimation of pseudo-instantaneous velocities and associated velocity statistics. Several potential limitations of this technique were suggested by Chanson (2020). In a direct response, the AWCC is clarified and shortcomings of conventional signal processing as well as general limitations of dual-tip phase-detection probes for velocity measurements are discussed. A comparison and validation of the AWCC against event detection techniques, image-based velocimetry and stochastic signals demonstrates the method’s novel opportunities for air–water flow research.

中文翻译：

---

使用双尖端相位检测探头对高度充气流中的速度进行估计 - 闭合

摘要 双尖端相位检测侵入式探头是测量高度充气流中界面速度的最广泛使用的实验技术。最近，我们引入了一种自适应窗口互相关 (AWCC) 技术，该技术允许估计伪瞬时速度和相关的速度统计数据。Chanson (2020) 提出了这种技术的几个潜在局限性。在直接响应中，AWCC 得到澄清，并讨论了传统信号处理的缺点以及双尖端相位检测探头用于速度测量的一般局限性。AWCC 与事件检测技术、基于图像的测速和随机信号的比较和验证证明了该方法在空气-水流研究方面的新机会。