A new kind of hairpin-like vortical structure induced by cross-interaction of sinuous streaks in turbulent channel<xref rid="cpb_27_8_084701fn1" ref-type="fn">*</xref> <fn id="cpb_27_8_084701fn1"><label>*</label><p>Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No. LQ18A020002), the National Natural Science Foundation of China (Grant No. 41776105), and the Foundation of the Educational Committee of Zhejiang Province, China (Grant No. Y201737053).</p></fn>

A new kind of hairpin-like vortical structure induced by cross-interaction of sinuous streaks in turbulent channel* *

Project supported by the Natural Science Foundation of Zhejiang Province, China (Grant No. LQ18A020002), the National Natural Science Foundation of China (Grant No. 41776105), and the Foundation of the Educational Committee of Zhejiang Province, China (Grant No. Y201737053).

Li Jian¹, Dong Gang^{2, †}, Zhang Hui², Chen Zhengshou^{1, 3}, Zhang Zhaode^{1, 3}

(color online) Schematic diagram of streak profiles ( ).