The droplet anisotropic wetting on chemically heterogeneous stripe-patterned substrates after impact is studied by using many-body dissipative particle dynamics in this work. After a low-velocity impact on substrates with different length ratio (ratio of stripe width to the initial droplet size) and Cassie area fraction, the droplet can show various shapes and contact angles in parallel and orthogonal directions to the stripes. The elongation of the droplet can be increasingly evident when increasing the length ratio. Also, the contact angles at both directions follow the Cassie-Baxter predicted values well at low length ratio while deviate from them at high length ratio. Both the capillary and kinetic effects have a significant influence on the anisotropic wetting. When impact with higher velocity, the droplet leaves some residues on the hydrophilic stripes of the substrates. Surprisingly, the residues for substrates with certain length ratio (<= 0.316) are distributed in circular regions with almost identical radii, indicating the spreading stages of them are independent on the surface properties and dominated by the kinetic effect. When the droplet reaches a stable state, the main body shows anisotropic wetting behavior, indicating the capillary effect dominates the wetting instead of the kinetic effect at the retraction stage.
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Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Zhao, Jiayi
Chen, Shuo
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Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Chen, Shuo
Cao, Damin
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Shanghai Univ Engn Sci, Sch Air Transportat, Shanghai 201620, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
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Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
Zhao, Jiayi
Chen, Shuo
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Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
Chen, Shuo
Zhang, Kaixuan
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Tsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, AML, Beijing 100084, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
Zhang, Kaixuan
Liu, Yang
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Hong Kong Polytech Univ, Dept Mech Engn, Hung Hom, Hong Kong 999077, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
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Idaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
Rao, Qi
Xia, Yidong
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Idaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
Xia, Yidong
Li, Jiaoyan
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SUNY Buffalo, Dept Mech & Aerosp Engn, Buffalo, NY USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
Li, Jiaoyan
McConnell, Joshua
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Univ Utah, Dept Chem Engn, Salt Lake City, UT 84112 USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
McConnell, Joshua
Sutherland, James
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Univ Utah, Dept Chem Engn, Salt Lake City, UT 84112 USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
Sutherland, James
Li, Zhen
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Clemson Univ, Dept Mech Engn, Clemson, SC 29634 USAIdaho Natl Lab, Energy & Environm Sci & Technol, Idaho Falls, ID 83415 USA
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Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Yu, Xin
Zhao, Jiayi
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Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Zhao, Jiayi
Chen, Shuo
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Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Chen, Shuo
Huang, Diangui
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Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Huang, Diangui
Zhang, Kaixuan
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Tsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, AML, Beijing, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
Zhang, Kaixuan
Cao, Damin
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Shanghai Univ Engn Sci, Sch Air Transportat, Shanghai, Peoples R ChinaUniv Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai, Peoples R China
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Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R ChinaHuazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R China
Chen, Hao
Nie, Qichun
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Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R ChinaHuazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R China
Nie, Qichun
Fang, Haisheng
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Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R ChinaHuazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R China
机构:
Tsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R ChinaTsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R China
Zhang, Kaixuan
Wang, Guanghui
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Beijing Aerosp Automat Control Inst, Beijing 100070, Peoples R ChinaTsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R China
Wang, Guanghui
Zhang, Shuchang
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Chinese Peoples Liberat Army, Unit 95982, Kaifeng 475000, Peoples R ChinaTsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R China
Zhang, Shuchang
Chen, Shuo
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Tongji Univ, Sch Aerosp Engn & Appl Mech, Shanghai 200092, Peoples R ChinaTsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R China
Chen, Shuo
Zhou, Nan
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Nanjing Boiler & Pressure Vessel Inspect Inst, Nanjing 210000, Peoples R ChinaTsinghua Univ, Inst Biomech & Med Engn, Dept Engn Mech, Beijing 100084, Peoples R China