The subject paper provides yet another interesting application of what has come to be known as constructal theory. However, the paper presents only an application and not a general theory. This is because, constructal theory or the maximum access principle deals with self organization in nature in general and the generation of architecture in flow systems in particular. Moreover, the authors cannot claim this theory as their own since the entire foundation for constructal theory has been laid down in at least seven papers or books by Bejan and his coworkers 1,2,3,4,5,6,7.

Indeed, the application of constructal theory to the boiling phenomenon was considered by Nelson and Bejan 4 on pp. 151–156 and by Nelson and Bejan 5. In addition, Bejan 7 on pp. 169, 174, and 175 also comments on constructal theory with photographic applications.

There is a great deal of similarity between the subject paper and Bejan’s work and I feel that Bejan and his coworkers should have had the benefit of an acknowledgment and a listing of their work in the bibliography.

1.
Bejan
,
A.
,
1996
, “
Street Network Theory of Organization in Nature
,”
J. Adv. Transp.
,
30
, pp.
85
107
.
2.
Bejan, A., 1997, Advanced Engineering Thermodynamics, 2ed, John Wiley and Sons, New York, NY.
3.
Bejan
,
A.
,
1997
, “
Constructal-Theory Network of Conducting Paths for Cooling a Heat Generating Volume
,”
Int. J. Heat Mass Transfer
,
40
, pp.
799
816
.
4.
Nelson, Jr., R. A., and Bejan, A., 1998, “Self-Organization of the Internal Flow Geometry in Convective Heat Transfer,” ASME HTD-Vol 356-3, pp. 149–161.
5.
Nelson
, Jr.,
R. A.
, and
Bejan
,
A.
,
1998
, “
Constructal Optimization of Internal Flow Geometry in Convection
,”
ASME J. Heat Transfer
,
120
, pp.
357
364
.
6.
Bejan
,
A.
, and
Tondeur
,
D.
,
1998
, “
Equipartition, Optimal Allocation, and the Constructal Approach to Predicting Optimization in Nature
,”
Rev. Gen. Therm.
,
37
, pp.
165
180
.
7.
Bejan, A., 2000, Shape and Structure From Engineering to Nature, Cambridge University Press, Cambridge, UK.