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.