EXPERIMENTAL STUDY ON TURBULENT STRUCTURES IN AN UNSTEADY COMPOUND OPEN-CHANNEL FLOW

On Coherent Structures of Turbulent Open-channel Flow Above a Rough Bed

Present study examines turbulent structures of a rough bed open-channel flow in the context of deterministic approach. Instantaneous velocity field is measured in different hydraulic conditions using two dimensional Particle Image Velocimetry (PIV) in vertical plane and Stereoscopic PIV in horizontal plane. Different techniques and quantities such as swirl strength, two-point and cross-correlat...

Integral turbulent scales in unsteady rapidly varied open channel flows

effect of sub-grid scales on large eddy simulation of particle deposition in a turbulent channel flow

چکیده ندارد.

Experimental study of turbulent supercritical open channel water flow as applied to the CLiFF concept

An experimental study of turbulent open channel water flows was conducted that simulated basic features of the flow of molten salt in the convective liquid flow first-wall (CLiFF) concept, which is a part of the Advanced Power Extraction (APEX) study. Unlike many other studies of open channel flows, the present one concentrates on a supercritical flow regime, in which surface waviness and wave ...

Computational Modeling of Turbulent Velocity Structures for an Open Channel Flow Using Karhunen–loéve Expansion

This paper develops an analytical two-part covariance kernel from velocity correlations across a two-dimensional (vertical and flow directions) Particle Image Velocimetry (PIV) flow field. This will form the basis of a model of wave action in flood water that includes the underlying turbulence velocity field using Karhunen–Loéve (KL) expansion. The PIV data was from the supercritical flow area ...