منابع مشابه
Evaluation of overland flow models using laboratory catchment data EL Parameter identification of physically based (kinematic wave) models
Abstract Using the Imperial College laboratory catchment facility data from 96 experiments on a slightly-roughened varnished strip catchment (1 m x 9.925 m) are used to investigate the performance of numerical models of overland flow based on the kinematic wave approximation. A simple four-parameter model incorporates the Darcy-Weisbach laminar flow and Manning turbulent flow friction relations...
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Traffic dynamics at a merging junction can be numerically solved with discrete conservation equationsand so-called supply-demand methods. In this paper, we first introduce a continuous multi-commoditykinematic wave model of merging traffic and then develop a new framework for constructing the solutionsto its Riemann problem with jump initial conditions. In the supply-demand spac...
متن کاملOverland flow: interfacing models with measurements
Van Loon, E. E., 2001. Overland flow: interfacing models with measurements. PhD thesis, Wageningen University, The Netherlands. 185 pp, 75 figs, 39 tables, 5 appendices. This study presents new techniques to identify scale-dependent overland flow models and use these for ensemble-based predictions. The techniques are developed on the basis of overland flow, rain, discharge, soil, vegetation and...
متن کاملImproved Estimates of Kinematic Wave Parameters for Circular Channels
The momentum equation in the kinematic wave model is a power-law equation with two parameters. These parameters, which relate the discharge to the flow area, are commonly derived using Manning’s equation. In general, the values of these parameters depend on the flow depth except for some special cross sections. In this paper, improved estimates of the kinematic wave parameters for circular chan...
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In this paper we extend the Lighthill-Whitham-Richards kinematic wave traffic flow model to describe traffic with different types of vehicles, where all types of vehicles are completely mixed and travel at the same group velocity. A study of such a model with two vehicle classes (e.g., passenger cars and trucks) shows that, when both classes of traffic have identical free-flow speeds, the model...
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ژورنال
عنوان ژورنال: Quarterly of Applied Mathematics
سال: 1978
ISSN: 0033-569X,1552-4485
DOI: 10.1090/qam/475217