Hydro Science & Marine Engineering最新文献

Surface Water Quality Assessment of Panchagnaga River and Development of DO-BOD Relationship Using Empirical Approach 潘查那加河地表水水质评价及DO-BOD关系的实证研究

Hydro Science & Marine Engineering Pub Date : 2021-12-20 DOI: 10.30564/hsme.v3i2.4121

Shilpa Yakkerimath, Sanjaykumar V. Divekar, C. Patil, A. A., Purandara Bekal

{"title":"Surface Water Quality Assessment of Panchagnaga River and Development of DO-BOD Relationship Using Empirical Approach","authors":"Shilpa Yakkerimath, Sanjaykumar V. Divekar, C. Patil, A. A., Purandara Bekal","doi":"10.30564/hsme.v3i2.4121","DOIUrl":"https://doi.org/10.30564/hsme.v3i2.4121","url":null,"abstract":"Surface water samples were collected from selected locations along river Panchaganga, from Kolhapur to Narsobawadi during April 2019. Physicochemical parameters were determined in the laboratory and chemical mass balance approach was adopted to estimate the individual ionic loads in the river water. Streeter-Phelps equation was applied to derive a relationship between DO and BOD5. Model parameters such as De-oxygenation Rate (Kd) and Re-aeration Rates (Kr ) were optimized using different empirical methods. The result of chemical mass balance showed an increase in the loading of various ions from upstream to downstream which could be attributed to agricultural and industrial wastes that enter the main stream. De-oxygenation rate and re-aeration constants were calculated using various empirical methods. DO sag curve was developed using Streeter Phelp’s model and compared with the observed parameters which showed a significant correlation. DO-BOD concentration observed along the course of the river indicated that the self-purification capacity of the river is high due to which the river regains the lost DO level at a distance less than 50 meters. ","PeriodicalId":359301,"journal":{"name":"Hydro Science & Marine Engineering","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133750555","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Meander on Bridge Pier Scour 曲流对桥墩冲刷的影响

Hydro Science & Marine Engineering Pub Date : 2021-12-13 DOI: 10.30564/hsme.v3i2.4079

M. Athar, M.K. Sabiree, H. Athar

引用次数: 0

Recent Development in Ice Engineering 冰工程的最新进展

Hydro Science & Marine Engineering Pub Date : 2021-11-23 DOI: 10.30564/hsme.v3i2.4081

Li Zhou

引用次数: 0

Degree of Integrated Water Resources Management Implementation in Context of Climate Change in a Watershed: Case of Oueme Basin, Benin (West Africa) 气候变化背景下流域水资源综合管理实施程度研究——以西非贝宁Oueme流域为例

Hydro Science & Marine Engineering Pub Date : 2021-11-10 DOI: 10.30564/hsme.v3i2.3837

Fêmi Cocker, E. Alamou, B. M. Elegbede, Ismaïla I. Toko

{"title":"Degree of Integrated Water Resources Management Implementation in Context of Climate Change in a Watershed: Case of Oueme Basin, Benin (West Africa)","authors":"Fêmi Cocker, E. Alamou, B. M. Elegbede, Ismaïla I. Toko","doi":"10.30564/hsme.v3i2.3837","DOIUrl":"https://doi.org/10.30564/hsme.v3i2.3837","url":null,"abstract":"This study is based on the hypothesis that the implementation of Integrated Water Resources Management (IWRM) tools in the Oueme watershed has not led to a systematic improvement in the degree of IWRM implementation in the Oueme Valley in Benin. Methodologically, data were collected through a semi-structured survey of stakeholder families in the study area using snowball sampling. The tool used was the form developed by the United Nations to collect data to assess the level of IWRM implementation. The four (4) assessment criteria, each covering a key component of IWRM, are the enabling environment, institutions and participation, management tools and financing. The results obtained per criteria according to the stepwise methodology adopted reveal on average a degree of implementation of 40 on a scale of 0 to 100 in the Oueme basin. This value varies according to the geographical area and the factors considered. This study, which is a decision-making tool, provides a guide for governments to monitor the progress of integrated water resources management in their territory.","PeriodicalId":359301,"journal":{"name":"Hydro Science & Marine Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123736043","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effects of Spur Dyke’s Orientation on Bed Variation in Channel Bend 刺堤方向对河道弯道河床变化的影响

Hydro Science & Marine Engineering Pub Date : 2021-11-10 DOI: 10.30564/hsme.v3i2.3834

M. Athar, Talib Mansoor, Nishank Aggarwal

{"title":"Effects of Spur Dyke’s Orientation on Bed Variation in Channel Bend","authors":"M. Athar, Talib Mansoor, Nishank Aggarwal","doi":"10.30564/hsme.v3i2.3834","DOIUrl":"https://doi.org/10.30564/hsme.v3i2.3834","url":null,"abstract":"Spur dykes also known as Groynes are often used to either divert or attract the flow from the main structure to safeguard their life. Those structures may be bridge piers, abutments or any similar hydraulics structures. Spur dykes are also used to save the cutting of banks on concave side of stream. Lots of work have been done in recent past on spur dykes by many investigators in which various hydraulic and geometrical parameters of spur dykes such as discharge, sediment size, flow velocity, shear stress, spur dykes shape, size and submergence etc. are studied in detail. But mostly all the studies were pointed out in straight open channels. Very few studies were done in curved channel and only their similar effects were studied. In present thesis main emphasis is given to study the effect of orientation and location of spur dykes in meandering channel on the bed of downstream side. In the present study experimental work has been carried out in 80° bend and constant discharge (Q = 4.5 l/s) is allowed to pass in channel without spur dyke. It is found that maximum scouring occurs at angular displacement θ = 60° to 80° in the vicinity of outer bank. To minimize this scouring, spur dyke has been installed at angular displacement θ = 20°, 40° & 60° by changing the dyke angle α = 60°, 90° & 120° respectively. It is found that scouring at θ = 60° is reduced by installing spur dyke at angular displacement θ = 40° which is oriented at α = 60° and scouring at θ = 80° is reduced by installing spur dyke at angular displacement θ = 60° which is oriented at α = 60°.","PeriodicalId":359301,"journal":{"name":"Hydro Science & Marine Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-11-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129111835","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Recent Development in Hydro Science 水利科学的最新进展

Hydro Science & Marine Engineering Pub Date : 2021-07-01 DOI: 10.30564/HSME.V3I1.3407

Ming Zhao

引用次数: 0

Research on Temperature Field of Support Structure for Independent LNG Tank 独立LNG储罐支撑结构温度场研究

Hydro Science & Marine Engineering Pub Date : 2020-05-31 DOI: 10.30564/hsme.v2i1.1690

Shifeng Ding, Li Zhou, Yingjie Gu, Yajun Zhou

引用次数: 0

Design of Flood Drainage in Golgohar Iron Ore Mine#3 果尔戈哈尔铁矿3号矿排水系统设计

Hydro Science & Marine Engineering Pub Date : 2019-10-31 DOI: 10.30564/hsme.v1i1.1255

Saeid Maknouni Gilani

{"title":"Design of Flood Drainage in Golgohar Iron Ore Mine#3","authors":"Saeid Maknouni Gilani","doi":"10.30564/hsme.v1i1.1255","DOIUrl":"https://doi.org/10.30564/hsme.v1i1.1255","url":null,"abstract":"The iron ore minerals reservoir of Golgohar Mine#3 is more than 660 million tons. It is the biggest in Iran and rate of ore extraction is more than 15 million tons per year. The pit takes place on the way of runoff pathway of this watershed and it needs an especial strategy for conserving the pit mine during next imminent floods. The area of Mine# 3 watershed is 20785700 square meters and its general slope in its topography map is 0.59 percent; then initial scheming indicates it can causes a great deal of problems for mining operation n the next floods; particularly, the pit is located into degree 4th sub branch of a main ephemeral river. For this purpose, the Soil Conservation Service Curve Number (SCS) method was employed to estimate intervals period of next floods based on the magnitude, the intensity and the duration of precipitation events data. Conceptual design of runoff drainage of the watershed was designed to lead the flood to a better pathway location. The Mine#3 overburden deposition occupies a huge area on the watershed; and it has been considered and redesigned in terms of size, form, dimensions and location to manage as a physical obstacle against next floods. Hydraulic calculations were applied for designing two essential open channels which can preserve the pit.","PeriodicalId":359301,"journal":{"name":"Hydro Science & Marine Engineering","volume":"55 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132475604","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

Practice Study on Operation Evaluation and Limitation for Merchant Ships in Polar Water 极地水域商船作业评价与限制的实践研究

Hydro Science & Marine Engineering Pub Date : 2019-10-31 DOI: 10.30564/hsme.v1i1.1082

Shifeng Ding, Li Zhou, Chenkang Zhong, Zhengrong Wang

引用次数: 0

Influence of Long-term Climate on Fatigue Life of Bridge Pier Concrete and a Reinforcement Method 长期气候对桥梁桥墩混凝土疲劳寿命的影响及加固方法

Hydro Science & Marine Engineering Pub Date : 2019-10-31 DOI: 10.30564/hsme.v1i1.1009

Nam-Hyok Ri, Kum-Hyok So, Yong-Sop Ri, Zhiyao Ma, Yong-Ae Kim, Hui-Gwang Yun

引用次数: 0