Skip to main content
SpringerLink
Log in

Measurement of dynamic surface tension by the oscillating droplet method

  • Originals
  • Published:
Experiments in Fluids Aims and scope Submit manuscript

Abstract

An optical measuring method has been applied to determine the dynamic surface tension of aqueous solutions of heptanol. The method uses the frequency of an oscillating liquid droplet as an indicator of the surface tension of the liquid. Droplets with diameters in the range between 100 and 200 μm are produced by the controlled break-up of a liquid jet. The temporal development of the dynamic surface tension of heptanol-water solutions is interpreted by a diffusion controlled adsorption mechanism, based on the “three-layer” model of Ward and Tordai. Measured values of the surface tension of bi-distilled water, and the pure dynamic and static (asymptotic) surface tensions of the surfactant solutions are in very good agreement with values obtained by classical methods.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

Abbreviations

a′:

coefficient of intermolecular forces, Nm-1

B :

adsorption constant

c o :

bulk concentration, mol m-3

D :

apparent diffusion coefficient, m2s-1

t :

time, s

T :

absolute temperature, K

R :

universal gas constant=8.314, J mol-1 K-1

(ℜθ, t):

droplet contour function

ℜo :

droplet equilibrium radius, m

Γ∞ :

maximum surface excess concentration, mol m-2

δ(t):

droplet volume normalization function

θ :

azimuth of the polar coordinate system

ϱ :

density, kgm-3

σ :

surface tension, N m-1

Φ(t):

concentration in the subsurface, molm-3

Ω :

droplet oscillation frequency

Author information

Authors and Affiliations

  1. Max-Planck-Institut für Strömungsforschung, Bunsenstr. 10, 37073, Göttingen, Germany

    B. Stückrad, W. J. Hiller & T. A. Kowalewski

Authors
  1. B. Stückrad
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. W. J. Hiller
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. T. A. Kowalewski
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Daimler-Benz AG, Produktion & Umwelt, D-89081 Ulm

On leave of absence from the Institute of Fundamental Technological Research, Polish Academy of Sciences, PL-00-049 Warszawa

Rights and permissions

Reprints and permissions

About this article

Cite this article

Stückrad, B., Hiller, W.J. & Kowalewski, T.A. Measurement of dynamic surface tension by the oscillating droplet method. Experiments in Fluids 15, 332–340 (1993). https://doi.org/10.1007/BF00223411

Download citation

  • Received:

  • Accepted:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF00223411

Keywords

Search

Navigation