The shape of drops and bubbles is the center of interest for many interfacial scientists. This book describes recent advances in the use of drops and bubbles in fundamental research and applications. It starts with a general discussion of the mechanics of fluid menisci; this introduction is followed by individual chapters providing in-depth discussions of various drop and bubble test techniques, including ADSA, drop volume and spinning drop tensiometry, maximum bubble pressure, oscillating bubbles, and more.

From the Foreword: “...Several of the described techniques are available as commercial instruments. The book will serve as an up to date guide to understand the methods, to show their advantages and disadvantages, to specify the range of application and to explain their experimental limits. For other methods just laboratory set-ups exist and the book will give insight into how to design them and what are the key questions to be solved in order to get accurate results. Especially these prototype instruments give access to completely new phenomena or allow studies of particular properties, such as is true for the oscillation mode analysis of drops, the force measurements between two liquid phases or the shape analysis of growing drops using modern light fibre techniques...”

Target Audience: All users of commercial instruments based on principles such as drop volume, spinning drop and maximum bubble pressure techniques. Also scientists and engineers using unique or custom-made droplet tensiometry or contact angle measurement setups.

Table of Contents:

The Gauss Laplace Equation for Liquid Axisymetric Meniscii

Axisymetric Drop Shape Analysis (ADSA) and Its Applications

The Drop Volume Technique

The Spinning Drop Tensiometry

Capillary Pressure Tensiometry with Applications in Microgravity

The Maximum Bubble Pressure Tensiometry

The Oscillating Bubbles Method

Physico-Chemical Hydrodynamics of Rising Bubble

Pulmonary Surfactant and Biophysical Function

High Temperature Tensiometry

Dynamics of the Impact Interaction Between a Fine Solid Sphere and a Plane Gas—Liquid Interface

Interactions of Emulsion Drops

From Stalagmometry to Tensiography: The Definition of the Instrumental, Software and Analytical Requirements for a New Departure in Drop Analysis

Index