Chunmiao Zheng

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This paper presents the design, architecture and implementation of a general parallel computing platform, termed PGO, based on the Genetic Algorithm for global optimization. PGO provides an efficient and easy-to-use framework for paralleliz-ing the global optimization procedure for general scientific modeling and simulation processes. Along with a core(More)
A new tracer experiment (referred to as MADE-5) was conducted at the well-known Macrodispersion Experiment (MADE) site to investigate the influence of small-scale mass-transfer and dispersion processes on well-to-well transport. The test was performed under dipole forced-gradient flow conditions and concentrations were monitored in an extraction well and in(More)
Several recent studies at the Macrodispersion Experiment (MADE) site in Columbus, Mississippi, have indicated that the relative preferential flowpaths and flow barriers resulting from decimeter-scale aquifer heterogeneities appear to have a dominant effect on plume-scale solute transport. Numerical experiments are thus conducted in this study to explore the(More)
Correct interpretation of tracer test data is critical for understanding transport processes in the subsurface. This task can be greatly complicated by the presence of intraborehole flows in a highly dynamic flow environment. At a new tracer test site (Hanford IFRC) a dynamic flow field created by changes in the stage of the adjacent Columbia River, coupled(More)
A new simulation-optimization methodology is developed for cost-effective sampling network design associated with long-term monitoring of large-scale contaminant plumes. The new methodology is similar in concept to the one presented by Reed et al. (Reed, P.M., Minsker, B.S., Valocchi, A.J., 2000a. Cost-effective long-term groundwater monitoring design using(More)
Funding support for RT3D(v1.0) code development efforts was provided, in part, by the office of Technology Development within the Department of Energy's Office of Environmental Management, under the " Plume Focus Area " and the " Subsurface Contamination Focus Area. " The RT3D code was originally developed for the Remediation Technology Development Forum(More)
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