Abstract
The concept of information entropy together with the principle of maximum entropy to open channel flow is essentially based on some physical consideration of the problem under consideration. This paper is a discussion on Yeganeh and Heidari (2020)'s paper, who proposed a new approach for measuring vertical distribution of streamwise velocity in open channels. The discussers argue that their approach is conceptually incorrect and thus leads to a physically unrealistic situation. In addition, the discussers found some wrong mathematical expressions (which are assumed to be typos) written in the paper, and also point out that the authors did not cite some of the original papers on the topic.
Highlights
The authors claim to have proposed a new approach for measuring vertical distribution of velocity in open channels using entropy concept
There are plenty of wrong mathematical expressions written in the paper, and surprisingly the authors did not cite some of the earlier papers on the same concepts
The authors use the concept of Renyi entropy for deriving the one-dimensional velocity distribution in open channels
Summary
1. Discussion: The authors claim to have proposed a new approach for measuring vertical distribution of velocity in open channels using entropy concept. The main objective of this discussion is to show that the new approach proposed by the authors is not correct conceptually. There are plenty of wrong mathematical expressions (which the discussers believe to be typos or written without any careful consideration) written in the paper, and surprisingly the authors did not cite some of the earlier papers on the same concepts.
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