Discussion: Triangular labyrinth side weirs with one and two cycles
Search citation statements
Paper Sections
Citation Types
Year Published
Publication Types
Relationship
Authors
Journals
Cited by 1 publication
References 7 publications
This issue of Water Management comprises three technical papers and one paper discussing an article that appeared in a previous edition of the journal. Two of the technical papers are concerned with water resource issues, with the first discussing improved optimisation of an existing hydropower reservoir in China, and the other pertaining to rainwater harvesting practice in Trinidad and the need for reliable water consumption data for better design and operation of domestic rainwater harvesting facilities. The third technical paper and indeed the discussion paper were mostly concerned with hydraulics.The first paper (Yang et al., 2016) is a discussion of a previous paper published in a 2013 edition of the journal (Borghei et al., 2013), in which the authors had investigated the hydraulic characteristics of triangular labyrinth side weirs with one and two cycles. Much of the discussion focused on the comparison of triangular labyrinth side weirs and trapezoidal labyrinth side weirs, for which apparently conflicting guides have appeared in the literature, especially in relation to the discharge coefficient. The contributors argued that the results presented by the authors are more plausible than those reported by earlier independent studies that appeared to show that trapezoidal labyrinth weirs have higher discharge coefficients than triangular labyrinth side weirs. They also confirmed that while the discharge coefficient of the triangular labyrinth side weir will significantly decrease as the flow rises, trapezoidal labyrinth weirs behave in an exactly opposite way. The authors, in their response, were pleased with the contributors for showing interest in their work and for clarifying some other aspects of their original study. Given the significance of weirs in flow measurements and control, the original study and this discussion have, in my opinion, offered useful information for practitioners and researchers in open channel flow hydraulics and measurement.The second paper (Shen and Cheng, 2016) describes the development of a hybrid, multi-objective optimisation hydropower reservoirs system operation with application to the cascaded hydropower plants on the Hongshuihe River in China. The hybrid optimisation approach combines three different steps: system evaluation, an integrated search that explores initial feasible solutions thus effectively delineating the rational search range, and a final improved discrete differential dynamic programming (DDDP) method that solves the final optimisation problem with its complex system objectives and constraints. There are two competing objectives considered for the Hongshuihe facilities: the maximisation of the total energy production; and the guaranteeing of power generation during the dry season (i.e. the firm power). The study clearly demonstrated that, for the case study system analysed, the newly developed method was slightly superior by generating more power during the dry season when compared to the other approaches tested, such as the use of single objective or the...
This issue of Water Management comprises three technical papers and one paper discussing an article that appeared in a previous edition of the journal. Two of the technical papers are concerned with water resource issues, with the first discussing improved optimisation of an existing hydropower reservoir in China, and the other pertaining to rainwater harvesting practice in Trinidad and the need for reliable water consumption data for better design and operation of domestic rainwater harvesting facilities. The third technical paper and indeed the discussion paper were mostly concerned with hydraulics.The first paper (Yang et al., 2016) is a discussion of a previous paper published in a 2013 edition of the journal (Borghei et al., 2013), in which the authors had investigated the hydraulic characteristics of triangular labyrinth side weirs with one and two cycles. Much of the discussion focused on the comparison of triangular labyrinth side weirs and trapezoidal labyrinth side weirs, for which apparently conflicting guides have appeared in the literature, especially in relation to the discharge coefficient. The contributors argued that the results presented by the authors are more plausible than those reported by earlier independent studies that appeared to show that trapezoidal labyrinth weirs have higher discharge coefficients than triangular labyrinth side weirs. They also confirmed that while the discharge coefficient of the triangular labyrinth side weir will significantly decrease as the flow rises, trapezoidal labyrinth weirs behave in an exactly opposite way. The authors, in their response, were pleased with the contributors for showing interest in their work and for clarifying some other aspects of their original study. Given the significance of weirs in flow measurements and control, the original study and this discussion have, in my opinion, offered useful information for practitioners and researchers in open channel flow hydraulics and measurement.The second paper (Shen and Cheng, 2016) describes the development of a hybrid, multi-objective optimisation hydropower reservoirs system operation with application to the cascaded hydropower plants on the Hongshuihe River in China. The hybrid optimisation approach combines three different steps: system evaluation, an integrated search that explores initial feasible solutions thus effectively delineating the rational search range, and a final improved discrete differential dynamic programming (DDDP) method that solves the final optimisation problem with its complex system objectives and constraints. There are two competing objectives considered for the Hongshuihe facilities: the maximisation of the total energy production; and the guaranteeing of power generation during the dry season (i.e. the firm power). The study clearly demonstrated that, for the case study system analysed, the newly developed method was slightly superior by generating more power during the dry season when compared to the other approaches tested, such as the use of single objective or the...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
Contact Info
customersupport@researchsolutions.com
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Product
Resources
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.
