Marcelo H. García

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The potential development of density currents in the Chicago River has been analyzed with the help of a three-dimensional hydrodynamic model. It was found that during the winter months, density currents can develop at the junction of the Chicago River with its North and South Branches. Such density underflows show a clear tendency to flow from the junction(More)
Chicago Waterways System (CWS) is a highly engineered and complex combination of natural rivers and artificial canal. Although not very long, CWS is famous for the engineering feat that directed its flow south away from the Lake Michigan into which it previously used to drain. In this research work two three dimensional models, Environmental Fluid Dynamics(More)
RVR Meander was developed as a toolbox for modeling restoration and naturalization processes in rivers. This model includes Windows-based and Geographical Information System-based programs for analyzing and modeling planform migration of streams. In the past, several rivers have been channelized causing environmental and ecological problems. Restoration(More)
Bidirectional flows in a river system can occur under stratified flow conditions and in addition to creating significant errors in discharge estimates, the upstream propagating currents are capable of transporting contaminants and affecting water quality. Detailed field observations of bidirectional flows were made in the Chicago River in Chicago, Illinois(More)
A numerical model for local scour with free surface and automatic mesh deformation is constructed and numerical simulation is carried out to compare with experimental results. The k-model is used to simulate the turbulent flow field. Two interfaces (water and air, water and sediment) in the domain are captured with different approaches. The free surface of(More)
The size distribution of a particle suspension can be inferred from studying the diffracted light pattern produced by a laser beam that passes through the suspension. This involves solving an ill-posed linear system. Two previous versions of projection algorithms were tested by use of computer simulations and experiments. Both algorithms showed limitations(More)
Regional change in the variability and magnitude of flooding could be a major consequence of future global climate change. Extreme floods have the capacity to rapidly transform landscapes and expose landscape vulnerabilities through highly variable spatial patterns of inundation, erosion, and deposition. We use the historic activation of the Birds Point-New(More)
– Heterogeneous networks require mechanisms for transparent protocol boosting in legacy systems and adaptive support for seamless interoperability between different wireless access methods. In this paper, we present an open performance enhancement protocol architecture that is developed to provide a generic Protocol Enhancing Proxy (PEP) service for(More)