Growth of bubbles on a solid surface in response to a pressure reduction
Research output: Contribution to journal › Article › peer-review
Colleges, School and Institutes
A diffusion-controlled method is presented to study the growth of bubbles on a solid surface. The bubbles are nucleated spontaneously on a hydrophobic smooth surface in response to a sudden pressure reduction and then grow with an expanding contact line. The evolution of the bubbles in the early stage is found to grow with a constant bubble radius and a decreasing contact angle, while the bubbles continue their growth with a constant contact angle and an increasing bubble radius after the contact angle reaches its equilibrium value. A total variation of about 60° of the contact angle is observed during the growth of the bubbles with the size scale of 10-100 μm in radius. The growing process is described by the diffusion theory with the validation of the growth constant.
|Number of pages||6|
|Early online date||11 Apr 2014|
|Publication status||Published - 22 Apr 2014|