Auteur Cheng, Nian-Sheng
Documents disponibles écrits par cet auteur (6)
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Article : texte imprimé
Zhi-Qian Wang, Auteur ; Cheng, Nian-Sheng, Auteur |This research attempts to qualitatively evaluate the effects of secondary flow on the distribution of suspended sediment concentration. The analysis is simplified using a special mode of secondary flows generated by longitudinal bedforms. In the[...]
Article : texte imprimé
Yan, Jing, Auteur ; Cheng, Nian-Sheng, Auteur ; Tang, Hong-Wu, Auteur ; Keat Tan, Soon, Auteur |Oscillating-grid turbulence (OGT) is characterized by its zero-mean flow, being two-dimensionally homogeneous in a certain region away from the grid plane. This homogeneous turbulence region that can be readily controlled is suitable for investi[...]
Article : texte imprimé
Lu, Yan, Auteur ; Yee-Meng Chiew, Auteur ; Cheng, Nian-Sheng, Auteur |The paper presents a review on the state-of-the-art knowledge of how seepage affects the turbulence characteristics in open channel flow and its implication on sediment entrainment.Published literature shows that some effects have been intensive[...]
Article : texte imprimé
Subhasish Dey, Auteur ; Cheng, Nian-Sheng, Auteur |Nonuniform-unsteady flow in open channels with streamwise sloping beds havind uniform upward seepage is theoretically analyzed. Expression for the Reynolds stress and bed shear are developed, assuming a modified logarithmic law of velocity profi[...]
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Jaan Hui Pu, Auteur ; Cheng, Nian-Sheng, Auteur ; Keat Tan, Soon, Auteur |Owing to unpredictable bed topography conditions in natural shallow flows, various numerical methods have been developed to improve the treatment of source terms in the shallow water equations. The surface gradient method is an attractive approa[...]
Article : texte imprimé
Jiang, Junsheng, Auteur ; Law, Adrian Wing-Keung, Auteur ; Cheng, Nian-Sheng, Auteur |In this study, we investigate a vertical dilute sediment-laden jet both experimentally and theoretically, first, an instantaneous whole-field velocimetry tool, particle image velocimetry, was applied to measure the sediment and fluid mean and fl[...]
