Channel bed processes experimental modeling in the area of damless water intake
The article presents the main results of substantiating the materials used when conducting experimental studies of channel processes in a river, the channel of which is composed of easily eroded soils. It is substantiated that the Amudarya sand cannot be modeled on a geometric scale since the model...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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EDP Sciences
2021-01-01
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| Series: | E3S Web of Conferences |
| Online Access: | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_03067.pdf |
| _version_ | 1818897543323451392 |
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| author | Norkulov Bekhzod Jumabaeva Gulnora Uljaev Farokhiddin Jamalov Farkhod Shomurodov Anvar Qurbanov Azizali |
| author_facet | Norkulov Bekhzod Jumabaeva Gulnora Uljaev Farokhiddin Jamalov Farkhod Shomurodov Anvar Qurbanov Azizali |
| author_sort | Norkulov Bekhzod |
| collection | DOAJ |
| description | The article presents the main results of substantiating the materials used when conducting experimental studies of channel processes in a river, the channel of which is composed of easily eroded soils. It is substantiated that the Amudarya sand cannot be modeled on a geometric scale since the model deposits are too small (powder) and lose the property of loose bodies. In such cases, a material with a decrease in specific gravity without a decrease in diameter is used as a substitute for sand. Since the sediment diameter cannot be reduced, the actual scale of the model remains distorted. It is indicated that the sediment diameter cannot be reduced, then in fact, the scale of the model remains distorted. Therefore, when the bottom of a river bank is made of sand that does not lend itself to geometric modeling, regardless of the change in the specific gravity of the natural material, to ensure the mobility of the sand on the model, it is necessary to distort the vertical scale.
Distortion of scales is also necessary because when using in laboratory conditions the same sand that formed the bed of the river, at any depth with a low velocity, the model observes bottom resistances to the flow of the flow compared with nature. The vertical and plan scales of modeling were calculated, respectively, equal to 50 and 57. According to the results of the calculations, the value of the coefficient of mobility of bottom sediments was established, which was equal to 1. |
| first_indexed | 2024-12-19T19:17:51Z |
| format | Article |
| id | doaj.art-3214faa87f204a7ab39b470fd59e3fe1 |
| institution | Directory Open Access Journal |
| issn | 2267-1242 |
| language | English |
| last_indexed | 2024-12-19T19:17:51Z |
| publishDate | 2021-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | E3S Web of Conferences |
| spelling | doaj.art-3214faa87f204a7ab39b470fd59e3fe12022-12-21T20:09:06ZengEDP SciencesE3S Web of Conferences2267-12422021-01-012640306710.1051/e3sconf/202126403067e3sconf_conmechydro2021_03067Channel bed processes experimental modeling in the area of damless water intakeNorkulov Bekhzod0Jumabaeva Gulnora1Uljaev Farokhiddin2Jamalov Farkhod3Shomurodov Anvar4Qurbanov Azizali5Tashkent institute of irrigation and agricultural mechanization engineersTashkent institute of irrigation and agricultural mechanization engineersTashkent institute of irrigation and agricultural mechanization engineersBukhara Branch of the Tashkent Institute of Irrigation and Agricultural Mechanization EngineersBukhara Branch of the Tashkent Institute of Irrigation and Agricultural Mechanization EngineersTashkent institute of irrigation and agricultural mechanization engineersThe article presents the main results of substantiating the materials used when conducting experimental studies of channel processes in a river, the channel of which is composed of easily eroded soils. It is substantiated that the Amudarya sand cannot be modeled on a geometric scale since the model deposits are too small (powder) and lose the property of loose bodies. In such cases, a material with a decrease in specific gravity without a decrease in diameter is used as a substitute for sand. Since the sediment diameter cannot be reduced, the actual scale of the model remains distorted. It is indicated that the sediment diameter cannot be reduced, then in fact, the scale of the model remains distorted. Therefore, when the bottom of a river bank is made of sand that does not lend itself to geometric modeling, regardless of the change in the specific gravity of the natural material, to ensure the mobility of the sand on the model, it is necessary to distort the vertical scale. Distortion of scales is also necessary because when using in laboratory conditions the same sand that formed the bed of the river, at any depth with a low velocity, the model observes bottom resistances to the flow of the flow compared with nature. The vertical and plan scales of modeling were calculated, respectively, equal to 50 and 57. According to the results of the calculations, the value of the coefficient of mobility of bottom sediments was established, which was equal to 1.https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_03067.pdf |
| spellingShingle | Norkulov Bekhzod Jumabaeva Gulnora Uljaev Farokhiddin Jamalov Farkhod Shomurodov Anvar Qurbanov Azizali Channel bed processes experimental modeling in the area of damless water intake E3S Web of Conferences |
| title | Channel bed processes experimental modeling in the area of damless water intake |
| title_full | Channel bed processes experimental modeling in the area of damless water intake |
| title_fullStr | Channel bed processes experimental modeling in the area of damless water intake |
| title_full_unstemmed | Channel bed processes experimental modeling in the area of damless water intake |
| title_short | Channel bed processes experimental modeling in the area of damless water intake |
| title_sort | channel bed processes experimental modeling in the area of damless water intake |
| url | https://www.e3s-conferences.org/articles/e3sconf/pdf/2021/40/e3sconf_conmechydro2021_03067.pdf |
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