Experimental study to estimate the discharge coefficient over inclined side spillway
Abstract: Weir is usually used in different hydraulic purposes, mainly for head discharge-water relationship in channels. In this research, the flow has been carried out over the side of spillway using three cases of crest inclination by means of increasing one side of the weir a half centimeter ea...
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Wasit University
2020-04-01
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| Series: | Wasit Journal of Engineering Sciences |
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| Online Access: | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/129 |
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| author | Ayat Mehdi kadhim Faisal A. Majid |
| author_facet | Ayat Mehdi kadhim Faisal A. Majid |
| author_sort | Ayat Mehdi kadhim |
| collection | DOAJ |
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Abstract: Weir is usually used in different hydraulic purposes, mainly for head discharge-water relationship in channels. In this research, the flow has been carried out over the side of spillway using three cases of crest inclination by means of increasing one side of the weir a half centimeter each time with constant crest length equal to 15 cm. This means that the angle θ equals to (1.91˚, 3.82˚ and 5.71˚) respectively towards of the flow and is opposite to the flow with decreasing a half centimeter. Also in case of the breadth is horizontal (θ=0), seven cases have been tested. It is known that the greater amount of discharge occurs when the breadth is horizontal (θ=0). In case of the inclination of the weir is inclined opposite to the flow direction, the discharge is greater than that of which the weir inclined towards the flow direction for all cases of inclination. The greater discharge was obtained when decreasing the angle, which is opposite to the flow direction. The amount of discharge over the side of weir decreases by increasing the angle of the slope opposite to the direction of the flow and become more decreasing in case the inclination of side weir towards the flow. In case of increasing the angle of inclination in flow direction, the amount of discharge over side weir will be decreased. The effect of Froude number has also studied with the discharge coefficient and found that, they are proportionally related to each other. Also the water surface profile along the side spillway weir is studied and taken under consideration theoretically and experimentally in this research.
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| format | Article |
| id | doaj-art-91ee7feb7453405fa99d3a9f647ce01c |
| institution | Kabale University |
| issn | 2305-6932 2663-1970 |
| language | English |
| publishDate | 2020-04-01 |
| publisher | Wasit University |
| record_format | Article |
| series | Wasit Journal of Engineering Sciences |
| spelling | doaj-art-91ee7feb7453405fa99d3a9f647ce01c2025-08-20T03:45:19ZengWasit UniversityWasit Journal of Engineering Sciences2305-69322663-19702020-04-017210.31185/ejuow.Vol7.Iss2.129Experimental study to estimate the discharge coefficient over inclined side spillwayAyat Mehdi kadhim0Faisal A. Majid1Civil Engineering Department, Wasit University, Iraq.Civil Engineering Department, Wasit University, Iraq. Abstract: Weir is usually used in different hydraulic purposes, mainly for head discharge-water relationship in channels. In this research, the flow has been carried out over the side of spillway using three cases of crest inclination by means of increasing one side of the weir a half centimeter each time with constant crest length equal to 15 cm. This means that the angle θ equals to (1.91˚, 3.82˚ and 5.71˚) respectively towards of the flow and is opposite to the flow with decreasing a half centimeter. Also in case of the breadth is horizontal (θ=0), seven cases have been tested. It is known that the greater amount of discharge occurs when the breadth is horizontal (θ=0). In case of the inclination of the weir is inclined opposite to the flow direction, the discharge is greater than that of which the weir inclined towards the flow direction for all cases of inclination. The greater discharge was obtained when decreasing the angle, which is opposite to the flow direction. The amount of discharge over the side of weir decreases by increasing the angle of the slope opposite to the direction of the flow and become more decreasing in case the inclination of side weir towards the flow. In case of increasing the angle of inclination in flow direction, the amount of discharge over side weir will be decreased. The effect of Froude number has also studied with the discharge coefficient and found that, they are proportionally related to each other. Also the water surface profile along the side spillway weir is studied and taken under consideration theoretically and experimentally in this research. https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/129Discharge coefficient, Froude number, side spillway, surface profile, Cd. |
| spellingShingle | Ayat Mehdi kadhim Faisal A. Majid Experimental study to estimate the discharge coefficient over inclined side spillway Wasit Journal of Engineering Sciences Discharge coefficient, Froude number, side spillway, surface profile, Cd. |
| title | Experimental study to estimate the discharge coefficient over inclined side spillway |
| title_full | Experimental study to estimate the discharge coefficient over inclined side spillway |
| title_fullStr | Experimental study to estimate the discharge coefficient over inclined side spillway |
| title_full_unstemmed | Experimental study to estimate the discharge coefficient over inclined side spillway |
| title_short | Experimental study to estimate the discharge coefficient over inclined side spillway |
| title_sort | experimental study to estimate the discharge coefficient over inclined side spillway |
| topic | Discharge coefficient, Froude number, side spillway, surface profile, Cd. |
| url | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/129 |
| work_keys_str_mv | AT ayatmehdikadhim experimentalstudytoestimatethedischargecoefficientoverinclinedsidespillway AT faisalamajid experimentalstudytoestimatethedischargecoefficientoverinclinedsidespillway |