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RISA simple model for estimation of dimensionless isovel contours in open channels
A simple model is proposed for predicting the dimensionless isovel contours in straight ducts and open channels. It is assumed that each element of the boundary influences the velocity at an arbitrary point in the cross ...
Control of wake destructive behavior for different bluff bodies in channel flow by magnetohydrodynamics
Control of wake structure may lead to a reduction in the unsteady forces and vibrations in
the marine structures. In this paper, the finite-volume method (FVM) is used to simulate the flow around
two-dimensional ...
New Method for Estimation of Discharge
A new technique for drawing isovel patterns in an open or closed channel is presented. It is assumed that the velocity at each arbitrary point in the conduit is affected by the hydraulic characteristics of the boundary. ...
NUMERICAL STUDY OF TURBULENCE KINETIC ENERGY BUDGET IN ACCELERATED CHANNEL FLOW
Turbulence kinetic energy consisted of three terms: production, diffusion and dissipation which are always in interaction with each other. In this article, the budgets of different terms are considered in turbulent accelerated ...
Boundary shear stress in open channel flow: A comparison among six methods
Six methods for the computation of the boundary shear stress distribution, and the mean bed and wall shear stresses in prismatic open channel flows are compared against laboratory data. The comparisons indicate that the widely used Vertical Depth...
Application of the single point measurement in discharge estimation
The fluid flow system can be described by an equivalent electromagnetic system. In this paper a successful application of the Biot–Savart law in hydraulics is presented. Similarity between the magnetic field of a current ...
Numerical investigation of freezing process with forced convection in channel flow
In the present study, the laminar flow with forced
convection has been investigated in two dimensional
channel for food freezing. The governing equations,
continuity, momentums and energy equations ...
Electro-osmotic flow in reservoir-connected flat microchannels with non-uniform zeta potential
The effects of non-uniform zeta potentials on electro-osmotic flows in flat microchannels
have been investigated with particular attention to reservoir effects. The governing equations,
which consist of a ...
Prediction of stage-discharge curves in open-channels using a fixed-point velocity measurement
Abstract
The single-point measurement method for discharge estimation, which was first introduced by Maghrebi, can be implemented to obtain the
discharge at different stages of a river during a flood event. ...
Evaluating the Modulated Gradient Model in Large-Eddy Simulation of Channel Flow with OpenFOAM
to calculate the relative weight of the different components of the SGS stress tensor. To evaluate the accuracy of the MGM along with the modified pimpleFoam solver, a turbulent channel flow was simulated at the three different frictional Reynolds numbers...