The initial coalescence of miscible drops

• Published in: Physics of fluids (1994) Vol. 19; no. 7; pp. 072110 - 072110-21
• Main Authors: Thoroddsen, S. T., Qian, B., Etoh, T. G., Takehara, K.
• Format: Journal Article
• Language: English
• Published: Melville, NY American Institute of Physics 01.07.2007
• Subjects: Drops and bubbles; Exact sciences and technology; Fluid dynamics; Fundamental areas of phenomenology (including applications); Instrumentation for fluid dynamics; Nonhomogeneous flows; Physics; Geometrical shape; Test facilities; High speed photography; Drops; Coalescence; Experimental study; Marangoni effect

When two drops of different miscible liquids are brought into contact, their coalescence speed is governed by the liquid having the weaker surface tension. Marangoni waves propagate along the drop with the stronger surface tension. We present surface profiles and propagation speeds of these waves, f...