A design approach for determining the optimal flow pattern in a landscape lake is proposed based on FLUENT simulation, multiple objective optimization, and parallel computing. This paper formulates the design into a multi-objective optimization problem, with lake circulation effects and operation cost as two objectives, and solves the optimization problem with non-dominated sorting genetic algorithm II. The lake flow pattern is modelled in FLUENT. The parallelization aims at multiple FLUENT instance runs, which is different from the FLUENT internal parallel solver. This approach: (1) proposes lake flow pattern metrics, i.e. weighted average water flow velocity, water volume percentage of low flow velocity, and variance of flow velocity, (2) defines user defined functions for boundary setting, objective and constraints calculation, and (3) parallels the execution of multiple FLUENT instances runs to significantly reduce the optimization wall-clock time. The proposed approach is demonstrated through a case study for Meijiang Lake in Tianjin, China.
- IWA Publishing
- A landscape lake flow pattern design approach based on automated ...
Mapping Bedrock Surfaces Near Lake Travis, Texas - Case Study
In May 2014 and May 2015, AGI conducted a hydrogeology workshop focused on training students how to use a resistivity meter for groundwater exploration at Lake Travis near Austin, Texas. Why groundwater exploration? This workshop’s purpose was important: As water—especially groundwater—becomes more and more scarce (and thus, valuable) knowing exactly where and how to find it will become more crucial. By training students how to use our resistivity meter for groundwater exploration, we’re...
Great Lakes restoration is under threat. Here’s why that matters
Degraded by decades of pollution, the North American Great Lakes are finding new life through cleanup efforts now threatened by proposed federal budget cuts. The St. Louis River, which flows into Lake Superior — the greatest of North America’s Great Lakes — has a long and turbulent history. Once a portal for Native American trade and a garden for wild rice, these waters that drain Minnesota’s north woods were polluted in the 19th and 20th centuries with waste from lumber, paper and...
The census application case of USV lake - Case study
Time: June 2015Equipment: sample collection monitoring USV , portable monitoring instruments Take the water quality survey of 53 representative lake in Wuhan. Collecting and recording sample automatic from these 53 lakes by USV, monitoring and recording water quality, PH, temperature, dissolved oxygen, conductivity, turbidity online,The results of the survey: Collect 673 water samples from 53 lakes; Online water quality monitoring stations at 4678pcs of 53 lakes Generate sample collection reports,monitoring...
Case Report: ESM30 in lake monitoring
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Patoka Lake Plant upgrade requires new control valves
Patoka Lake Regional Water & Sewer District (PLRWSD) serves 11 counties in southern Indiana with a population of around 130,000. The distribution of water travels through approximately 850 miles of pipe ranging in size from sizes 3 to 30 inches and includes numerous elevated towers or tanks in each District Metered Area (DMA). The treatment facilities are fed by an intake structure located at Patoka Lake a little over 1 mile from the water treatment plants. Sean Kluesner is Operations Manager and Jerry...