Special Issue "Advances in River Mixing Analysis"
Deadline for manuscript submissions: closed (31 March 2023) | Viewed by 3953
This Special Issue focuses on the analysis of river mixing, which involves the advection, diffusion, and dispersion of contaminants in open channels, i.e., creeks, streams, and rivers. The diffusion process is defined as the scattering of particles by turbulent and random molecular motions, which can be described by Fick’s law. On the contrary, the dispersion process is represented by mixing that results from spatial variations of velocity. In most rivers, the dispersive mixing capacity is much greater than that of diffusion. Thus, the sum of the dispersion coefficient and the diffusion coefficient can be approximated solely by the dispersion coefficient after the initial period.
River mixing analyses have mainly been conducted using one-dimensional approaches based on longitudinal dispersion, assuming that the pollutant rapidly becomes well-mixed across the cross-section. However, a multi-dimensional analysis should be conducted in cases focusing on the mixing of tributary inflows or waste discharge near a water intake. Many industrial and environmental projects require the ability to predict contaminant transport in open channels, ranging from accidental spills of chemicals to the transport of non-point sources.
In this Special Issue, we encourage experimental studies at the laboratory and field scale, as well as modeling studies of river mixing processes.
Prof. Dr. Kyong Oh Baek
Manuscript Submission Information
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- open channel
- one-dimensional approach
- multi-dimensional analysis
- mixing of tributary inflows
- accidental spill
- experimental study
- numerical modelling