Spherical cap bubbles in viscous liquids often develop trailing gas ’’skirts.’’ Fundamental arguments relating to the shape of gas caps, the formation of skirts, their length and thickness are discussed. Experimental results in mineral oil of gas cap indentation, the structure of skirted and nonskirted wakes, the length of skirts, and criteria for skirt formation and skirt instabilities are presented.

1.
W. G.
Davenport
,
F. D.
Richardson
, and
A. V.
Bradshaw
,
Chem. Eng. Sci.
22
,
1221
(
1967
).
2.
J. J.
Thomson
and
H. F.
Newall
,
Proc. R. Soc. Lond.
39
,
417
(
1885
).
3.
P. D.
Shoemaker
and
L. E. Marc
De Chazal
,
Chem. Eng. Sci.
24
,
795
(
1960
).
4.
W. G. Davenport, Ph.D. thesis, University of Cambridge (1965).
5.
D. R. M. Jones, Ph.D. thesis, University of Cambridge (1965).
6.
R. I. L.
Guthrie
and
A. V.
Bradshaw
,
Chem. Eng. Sci.
24
,
913
(
1969
).
7.
P. P.
Wegener
,
R. E.
Sundell
, and
J. Y.
Parlange
,
Z. Flugwiss.
19
,
347
(
1971
).
8.
P. H.
Calderbank
,
D. S. L.
Johnson
, and
J.
Loudon
,
Chem. Eng. Sci.
25
,
235
(
1970
).
9.
R. M.
Davies
and
G. I.
Taylor
,
Proc. R. Soc.
A200
,
375
(
1950
).
10.
P. P. Wegener and J. Y. Parlange, in Annual Review of Fluid Mechanics, edited by M. Van Dyke, W. G. Vincenti, and J. V. Wehausen (Annual Reviews, Palo Alto, California, 1973), Vol. 5, p. 79.
11.
J. F. Harper, in Advances in Applied Mechanics (Academic, New York, 1972), Vol. 12, p. 59.
12.
J. Y.
Parlange
,
J. Fluid Mech.
37
,
257
(
1969
).
13.
S.
Richardson
,
J. Fluid Mech.
33
,
475
(
1968
).
14.
J.
Buckmaster
and
J.
Flaherty
,
J. Fluid Mech.
60
,
625
(
1973
).
15.
H. Lamb, Hydrodynamics (Dover, New York, 1945), p. 615.
16.
S.
Uno
and
R. C.
Kintner
,
AIChE J. (Am. Inst. Chem. Eng.)
2
,
420
(
1956
).
17.
J. R.
Grace
,
Trans. Inst. Chem. Eng.
51
,
116
(
1973
).
18.
F. Y.
Pan
and
A.
Acrivos
,
Ind. Eng. Chem. Fundam.
7
,
227
(
1968
).
19.
B. J. C.
Wu
,
R. T.
Deluca
, and
P. P.
Wegener
,
Chem. Eng. Sci.
29
,
1307
(
1974
).
20.
J. R.
Grace
,
Can. J. Chem. Eng.
48
,
30
(
1970
).
21.
P. H. Calderbank, The Chemical Engineer (Review) 212, 209 (1967).
22.
R. I. L.
Guthrie
and
A. V.
Bradshaw
,
Chem. Eng. Sci.
28
,
191
(
1973
).
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