【摘 要】
：
Drop impact on superhydrophobic surfaces usually manifests an elastic rebound due to the negligible viscous dissipation caused by the air pockets trapped underlying the impinging drop.During the impac
【机 构】
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Key Laboratory for Precision & Nontraditional Machining Technology of Ministry of Education,Dalian U
【出 处】
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The 5th International Conference of Bionic Engineering 第五届国际
论文部分内容阅读
Drop impact on superhydrophobic surfaces usually manifests an elastic rebound due to the negligible viscous dissipation caused by the air pockets trapped underlying the impinging drop.During the impact process,the drop first undergoes an inertia-dominant lateral spreading,retracts on the liquid-repellent surface to minimize the surface energy,and finally takes off in the vertical direction.In strong contrast to the conventional drop bouncing,we demonstrate here that the liquid drop can completely rebound from a multilayered superhydrophobic porous surface without undergoing the lateral drop retraction and display a pancake-like bouncing,allowing a two-fold reduction of the contact time compared to conventional drop bouncing.
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