Pipe Line Hydraulic Transportation of Woodchips
نویسندگان
چکیده
منابع مشابه
The hydraulic transportation of thickened sludges
Industries which pump sludges are under continuous pressure to decrease water content, and increase concentration. Environmentally superior disposal techniques are demanding that such sludges have high mechanical strength properties. This results in a sludge with an increasing viscous character. At high concentration, the viscous forces – which are usually highly non-Newtonian and yield stress ...
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Draft tube of Francis type hydraulic turbine usually consists of: cone, elbow and diffuser. On the contrary, in some power stations an extra pipe should be added to the draft tube at the bottom of cone because of installation limitation. In this paper, this special case has been numerically studied. To this end CFD analysis was applied to simulate all parts of hydraulic turbine. A homogeneous m...
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چکیده ندارد.
15 صفحه اولNumerical Simulation of Effect of Drain Pipe in Uplift Force and Exit Hydraulic Gradient in Gravity Dams
In this study, the effects of diameter and location of drain pipe in uplift force and exit hydraulic gradient in the foundation of gravity dams are investigated. For this purpose, a numerical model of gravity dam foundation is simulated using finite elements method. The results indicate that drain pipe under the gravity dam reduces the uplift force and exit hydraulic gradient. Location of the d...
متن کاملThe inertial subrange in turbulent pipe flow: centre line
The inertial subrange scaling of the axial velocity component is examined for the centre line of turbulent pipe flow for Reynolds numbers in the range 249 6 Reλ 6 986. Estimates of the dissipation rate are made by both integration of the one-dimensional dissipation spectrum and the third-order moment of the structure function. In neither case does the non-dimensional dissipation rate asymptote ...
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ژورنال
عنوان ژورنال: JAPAN TAPPI JOURNAL
سال: 1974
ISSN: 0022-815X,1881-1000
DOI: 10.2524/jtappij.28.648