| ชื่อเรื่อง | : | Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law |
| นักวิจัย | : | Cheng, Nian-Sheng , Nguyen, Hoai Thanh , Zhao, Kuifeng , Tang, Xiaonan |
| คำค้น | : | DRNTU::Engineering::Civil engineering::Water resources. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2554 |
| อ้างอิง | : | Cheng, N. S., Nguyen, H. T., Zhao, K., & Tang, X. (2011). Evaluation of Flow Resistance in Smooth Rectangular Open Channels with Modified Prandtl Friction Law. Journal of Hydraulic Engineering, 137(4), 441-450. , 0733-9429 , http://hdl.handle.net/10220/7654 , http://dx.doi.org/10.1061/(ASCE)HY.1943-7900.0000322 |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Journal of hydraulic engineering |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | Flow resistance in open channels is usually estimated by applying the approach that is developed originally for pipe flows. Such estimates may be useful for engineering applications but always differ from measurements to some extent. This paper first summarizes empirical approaches that have been proposed in the literature to reconcile the resistance difference. These include various modifications of the pipe friction for applications to rectangular ducts and open channel flows. An improved friction equation is then derived for evaluating flow resistance of smooth rectangular open channels. Comparisons are made with experimental data reported by previous researchers and those collected in the present study. It is shown that the new proposed equation is applicable for both narrow and wide channels and is more accurate than those available in the literature. |
| บรรณานุกรม | : |
Cheng, Nian-Sheng , Nguyen, Hoai Thanh , Zhao, Kuifeng , Tang, Xiaonan . (2554). Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law.
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cheng, Nian-Sheng , Nguyen, Hoai Thanh , Zhao, Kuifeng , Tang, Xiaonan . 2554. "Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cheng, Nian-Sheng , Nguyen, Hoai Thanh , Zhao, Kuifeng , Tang, Xiaonan . "Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2554. Print. Cheng, Nian-Sheng , Nguyen, Hoai Thanh , Zhao, Kuifeng , Tang, Xiaonan . Evaluation of flow resistance in smooth rectangular open channels with modified Prandtl friction law. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2554.
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