3 papers
physics.flu-dyn2023
Numerical simulation of the radiation force from transient acoustic fields: Application to laser-guided acoustic tweezers
Shuhan Chen, Qing Wang, Qi Wang +2
Using pulsed acoustic waves could provide a superior selectivity for microscale acoustic tweezers. However, the theory for the radiation force of pulsed acoustic waves has only bee…
physics.flu-dyn2020
Observation of contact angle hysteresis due to inhomogeneous electric fields
Wei Wang, Qi Wang, Jia Zhou +1
Static contact angle hysteresis (CAH) is widely attributed to surface roughness and chemical contamination. In the latter case, chemical defects create free-energy barriers that pr…
physics.flu-dyn2019
On-demand contact line pinning during droplet evaporation
Wei Wang, Qi Wang, Kaidi Zhang +3
Depending on the contact line motion, colloid-rich drolets evaporation can leave a ring-like or a spot-like residue. Herein, we determine this outcome by controlling the contact li…