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Predicting Hydraulic Jump Length on Rough Beds Using Data-Driven Models | ||
| Journal of Rehabilitation in Civil Engineering | ||
| مقاله 10، دوره 6، شماره 2 - شماره پیاپی 12، آبان 2018، صفحه 139-153 اصل مقاله (1.19 M) | ||
| نوع مقاله: Research Note | ||
| شناسه دیجیتال (DOI): 10.22075/jrce.2017.11047.1180 | ||
| نویسندگان | ||
| Payam Khosravinia* 1؛ Hadi Sanikhani2؛ Chonor Abdi3 | ||
| 1water sciences and engineering,university of kurdistan,sanandaj,iran | ||
| 2Assistant Professor at University of Kurdistan | ||
| 3water sciences and engineering department,university of kurdistan-sanandaj-iran | ||
| تاریخ دریافت: 26 فروردین 1396، تاریخ بازنگری: 22 مهر 1396، تاریخ پذیرش: 09 آبان 1396 | ||
| چکیده | ||
| The hydraulic jump can be used for some purpose such as dissipating the flow energy in order to prevent bed erosion; aerating water and facilitating the mixing procedure of chemical that used for water purification. In this paper, various artificial intelligence (AI) models including gene expression programming (GEP), adaptive-neuro-fuzzy inference system with grid partition (ANFIS-GP), and neural networks (ANNs) were used to estimate developed and non-developed hydraulic jump length. Four various GEP, ANFIS-GP and ANN models including different combinations of Froude number, bed roughness height, upstream and downstream flow depth based on measured experimental data-set were developed to estimate hydraulic jump length variations. The root mean squared error (RMSE) and determination coefficient (R2) indices were applied for testing models’ accuracy. Regarding the comparison results, it was seen that the ANFIS-GP, ANN, and GEP models could be employed successfully in estimating hydraulic jump length. The comparison between three AI approaches emphasized the superiority of ANNs and ANFIS-GP over the other intelligent models for modeling developed and non-developed hydraulic jump length, respectively. For non-developed hydraulic jump, the R2 and RMSE values obtained as 0.87 and 2.84 for ANFIS-GP model. | ||
| کلیدواژهها | ||
| Hydraulic Jump؛ Rough Bed؛ Neural Networks؛ Grid Partition؛ Gene Expression Programming | ||
| مراجع | ||
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