Jiaqi Cheng
Current Organizations / Institutes
The organizations/institutes from the scholar's latest article
Research Subjects
Jiaqi Cheng has a total of 9 co-authors. Here are the top co-authors by number of shared publications:
- Chun-Yu Zhang
University of Science and Technology of China
1 shared publication - Fei Zhang
Huazhong University of Science and Technology
1 shared publication - Hang Ding
University of Science and Technology of China
1 shared publication Jingwei Chen
University of Science and Technology of China
1 shared publicationShuguang Zhao
Huazhong University of Science and Technology
1 shared publication- Wanqiu Zhang
Huazhong University of Science and Technology
1 shared publication
Latest Publications
- 14 May 2025
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 135 (2) , 024001
Wettability-dependent damping of droplet vibrations on solid surfaces
Oscillating sessile droplets on a plane, crucial in industrial applications like inkjet printing, spray cooling, and antifogging, present a long-standing challenge in determining viscous damping. Existing solutions are limited to first-order asymptotic approximations of hemispherical droplets, accounting only for viscous dissipation near the wall. Considering further the bulk dissipation that is usually neglected due to its higher-order effect, we obtain a two-term approximation of decay rates for pinned sessile droplets with different contact angles. We demonstrate that the two-term approximation effectively resolves discrepancies between predicted and observed dampings for viscosities in the range of practical interest, supported by experiments and simulations. The two-term approximation also explains why hydrophobic droplets possess much lower damping than hydrophilic ones, and offers a template for damping prediction formulas with potential viscosity measurement applications.
- 14 May 2025
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 135 (2) , 024001
Wettability-dependent damping of droplet vibrations on solid surfaces
Oscillating sessile droplets on a plane, crucial in industrial applications like inkjet printing, spray cooling, and antifogging, present a long-standing challenge in determining viscous damping. Existing solutions are limited to first-order asymptotic approximations of hemispherical droplets, accounting only for viscous dissipation near the wall. Considering further the bulk dissipation that is usually neglected due to its higher-order effect, we obtain a two-term approximation of decay rates for pinned sessile droplets with different contact angles. We demonstrate that the two-term approximation effectively resolves discrepancies between predicted and observed dampings for viscosities in the range of practical interest, supported by experiments and simulations. The two-term approximation also explains why hydrophobic droplets possess much lower damping than hydrophilic ones, and offers a template for damping prediction formulas with potential viscosity measurement applications.