Numerical Simulation of Sand Erosion in a Square-Section 90-Degree Bend
نویسندگان
چکیده
منابع مشابه
Numerical Investigation of Turbulent Mass Transfer in a 90° Bend
This paper presents a numerical study of local mass transfer coefficients in a 90° bend using the RNG version of k–e model to include the influence of curvature on the turbulent transport. Simulations were performed for flow through a 90°, 3-D bend for Reynolds numbers of 13500, 90000, and 390000, Schmidt numbers of 2.53 and 700 and curvature ratios of 1.5, 2, and 2.5. The differences betwe...
متن کاملnumerical investigation of turbulent mass transfer in a 90° bend
this paper presents a numerical study of local mass transfer coefficients in a 90° bend using the rng version of k–e model to include the influence of curvature on the turbulent transport. simulations were performed for flow through a 90°, 3-d bend for reynolds numbers of 13500, 90000, and 390000, schmidt numbers of 2.53 and 700 and curvature ratios of 1.5, 2, and 2.5. the differences between t...
متن کاملExperimental Investigation of Turbidity Flow in 90 Degree Bend with Mobile Bed
Turbidity currents in the ocean and lakes are driven by suspended sediment. The vertical profiles of velocity and excess density are shaped by interaction between the current and bed as well as between the current and the ambient water. This paper presents 48 series of experiments in which saline gravity currents flow through a laboratory sinuous flume. flume contains three successive bends wit...
متن کاملExperimental Investigation of Turbidity Flow in 90 Degree Bend with Mobile Bed
Turbidity currents in the ocean and lakes are driven by suspended sediment. The vertical profiles of velocity and excess density are shaped by interaction between the current and bed as well as between the current and the ambient water. This paper presents 48 series of experiments in which saline gravity currents flow through a laboratory sinuous flume. flume contains three successive bends wit...
متن کاملinvestigation on time variation of scour around t shape spur dike in a 90 degree bend
spur dike is an important element for protection of river banks. spur dike causes variations in flow field, sediment transport and bed topography. the mechanism of flow and sediment transport in a channel bend is very complex, especially when a spur dike is constructed in a bend. in this paper the time variations of dimension of the scour hole and the bed’s topography were considered around a t...
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ژورنال
عنوان ژورنال: Journal of Fluid Science and Technology
سال: 2008
ISSN: 1880-5558
DOI: 10.1299/jfst.3.868