The mobility of Leidenfrost drop has been exploited for the manipulation of drop motions. In the classical model, the Leidenfrost drop was levitated by a vapor cushion, in the absence of touch to the surface. Here we report a standing Leidenfrost state on a heated hydrophobic surface where drop stands on the surface with partial adhesion and further self-rotates like Sufi-whirling. To elucidate this new phenomenon, we imaged the evolution of the partial adhesion, the inner circulation, and the ellipsoidal rotation of the drop. The stable partial adhesion is accompanied by thermal and mechanical equilibrium, and further drives the development of the drop rotation.

中文翻译：

---

带有 Sufi-whirling 的站立式 Leidenfrost 水滴

Leidenfrost 液滴的移动性已被用于操控液滴运动。在经典模型中，莱顿弗罗斯特水滴由蒸汽垫悬浮，在没有接触表面的情况下。在这里，我们报告了在加热的疏水表面上的站立莱顿弗罗斯特状态，其中液滴以部分粘附的方式站立在表面上，并像苏菲旋转一样进一步自旋转。为了阐明这一新现象，我们对部分粘附、内部循环和液滴椭圆旋转的演变进行了成像。稳定的部分粘附伴随着热和机械平衡，进一步推动了液滴旋转的发展。