SOME OBSERVATIONS ON DROPS OF THICKENED LIQUIDS IN A VERTICAL WIND TUNNEL

Authors
  1. Muirhead, J.C.
  2. Soucey, W.G.
Corporate Authors
Defence Research Establishment Suffield, Ralston ALTA (CAN)
Abstract
Some exploratory observations were made on liquid drops suspended in a vertical wind tunnel. Literature suggestions that maximum drop sizes are related to a Weber No. of about 10, and that maximum size of water drops tends to be proportional to the square root of surface tension were supported by the results obtained. These two observations are qualitatively in agreement, but physically inconsistent. The presence of the thickeners, Separan and K-125, increases maximum drop size, and it is suggested that this could be said to increase the "effective" surface tension. Fine filaments were observed leaving drops of Dowanol DPM/K125 in such a way that they could lead to reformation of drops of this material into much smaller drops should sufficient free-fall distance be available.
Report Number
M-1094 —
Date of publication
15 Aug 1983
Number of Pages
13
DSTKIM No
83-02864
CANDIS No
40541
Format(s):
Hardcopy;Originator's fiche received by DSIS

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