Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway
<span>In present work a labyrinth (zigzag), in shape has been used to configure the steps of stepped <span>spillway by using the physical model. This configuration does not introduce previously by <span>investigators or in construction techniques of dams or cascades. It would be ex...
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doaj-07569d9802744ba18263fb6cd73ff45f2020-11-25T00:30:25ZengTikrit UniversityTikrit Journal of Engineering Sciences1813-162X2312-75892017-12-01233122410.25130/tjes.v23i3.639319Kinetic Energy Dissipation on Labyrinth Configuration Stepped SpillwayJaafar S. Maatooq0Building and Construction Dept., University of Technology, Baghdad<span>In present work a labyrinth (zigzag), in shape has been used to configure the steps of stepped <span>spillway by using the physical model. This configuration does not introduce previously by <span>investigators or in construction techniques of dams or cascades. It would be expected to improve <span>the flow over chute. A magnifying the width path of each step to become, L<span>T<span>, instead of, W, will <span>induce the interlocking between the mainstream and that spread laterally due to labyrinth path. This <span>phenomenon leads to reduce the jet velocities near the surfaces, thus minimizing the ability of <span>cavitation and with increasing a circulation regions the ability of air entrainment be maximized. The <span>results were encouraging, (e.g., the reverse performance has recorded for spillway slope). From the <span>evaluation of outcome, the average recorded of percentage profits of kinetic energy dissipation with <span>a labyrinth shape compared with the results of traditional shape were ranged between (13- 44%). <span>Different predictive formulas have been proposed based on iteration analysis, can be <span>recommended for evaluation and design.</span></span></span></span></span></span></span></span></span></span></span><br /><br /></span></span></span>http://www.tj-es.com/ojs/index.php/tjes/article/view/639Stepped spillway, Skimming flow, Overflow energy dissipation, Labyrinth weir, Air entrainment, Circulation regions |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jaafar S. Maatooq |
spellingShingle |
Jaafar S. Maatooq Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway Tikrit Journal of Engineering Sciences Stepped spillway, Skimming flow, Overflow energy dissipation, Labyrinth weir, Air entrainment, Circulation regions |
author_facet |
Jaafar S. Maatooq |
author_sort |
Jaafar S. Maatooq |
title |
Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway |
title_short |
Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway |
title_full |
Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway |
title_fullStr |
Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway |
title_full_unstemmed |
Kinetic Energy Dissipation on Labyrinth Configuration Stepped Spillway |
title_sort |
kinetic energy dissipation on labyrinth configuration stepped spillway |
publisher |
Tikrit University |
series |
Tikrit Journal of Engineering Sciences |
issn |
1813-162X 2312-7589 |
publishDate |
2017-12-01 |
description |
<span>In present work a labyrinth (zigzag), in shape has been used to configure the steps of stepped <span>spillway by using the physical model. This configuration does not introduce previously by <span>investigators or in construction techniques of dams or cascades. It would be expected to improve <span>the flow over chute. A magnifying the width path of each step to become, L<span>T<span>, instead of, W, will <span>induce the interlocking between the mainstream and that spread laterally due to labyrinth path. This <span>phenomenon leads to reduce the jet velocities near the surfaces, thus minimizing the ability of <span>cavitation and with increasing a circulation regions the ability of air entrainment be maximized. The <span>results were encouraging, (e.g., the reverse performance has recorded for spillway slope). From the <span>evaluation of outcome, the average recorded of percentage profits of kinetic energy dissipation with <span>a labyrinth shape compared with the results of traditional shape were ranged between (13- 44%). <span>Different predictive formulas have been proposed based on iteration analysis, can be <span>recommended for evaluation and design.</span></span></span></span></span></span></span></span></span></span></span><br /><br /></span></span></span> |
topic |
Stepped spillway, Skimming flow, Overflow energy dissipation, Labyrinth weir, Air entrainment, Circulation regions |
url |
http://www.tj-es.com/ojs/index.php/tjes/article/view/639 |
work_keys_str_mv |
AT jaafarsmaatooq kineticenergydissipationonlabyrinthconfigurationsteppedspillway |
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1725326677868806144 |