| ชื่อเรื่อง | : | Fluctuations of turbulent bed shear stress. |
| นักวิจัย | : | Cheng, Nian-Sheng , Law, Adrian Wing-Keung |
| คำค้น | : | DRNTU::Engineering::Civil engineering::Water resources. , DRNTU::Engineering::Mechanical engineering::Fluid mechanics. |
| หน่วยงาน | : | Nanyang Technological University, Singapore |
| ผู้ร่วมงาน | : | - |
| ปีพิมพ์ | : | 2546 |
| อ้างอิง | : | Cheng, N. S., & Law, A. W. K. (2003). Fluctuations of turbulent bed shear stress. Journal of Engineering Mechanics, 129(1), 126-130. , 0733-9399 , http://hdl.handle.net/10220/7642 , http://dx.doi.org/10.1061/(ASCE)0733-9399(2003)129:1(126) |
| ที่มา | : | - |
| ความเชี่ยวชาญ | : | - |
| ความสัมพันธ์ | : | Journal of engineering mechanics |
| ขอบเขตของเนื้อหา | : | - |
| บทคัดย่อ/คำอธิบาย | : | With the assumption that the bed shear stress fluctuates in a lognormal fashion, the probability density function PDF of the standardized bed shear stress is derived as a function of the relative shear stress intensity. The PDF is more skewed with larger relative intensities, but approaches a Gaussian function when the relative intensity is small. The computed PDF agrees well with the reported experimental data for flows over a smooth boundary. The higher-order moments of the bed shear stress, skewness, and kurtosis, are shown analytically to be also dependent on the relative intensity. The theoretical dependencies are then compared to a number of measurements available in the literature. The Reynolds number effect on the relative intensity is also discussed. |
| บรรณานุกรม | : |
Cheng, Nian-Sheng , Law, Adrian Wing-Keung . (2546). Fluctuations of turbulent bed shear stress..
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cheng, Nian-Sheng , Law, Adrian Wing-Keung . 2546. "Fluctuations of turbulent bed shear stress.".
กรุงเทพมหานคร : Nanyang Technological University, Singapore. Cheng, Nian-Sheng , Law, Adrian Wing-Keung . "Fluctuations of turbulent bed shear stress.."
กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2546. Print. Cheng, Nian-Sheng , Law, Adrian Wing-Keung . Fluctuations of turbulent bed shear stress.. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2546.
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