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Water Quality Model for Streams: A Review

Journal of Environmental Protection 2019年第12期10卷 1612-1648页

作者： S. Ranjith Anand V. Shivapur P. Shiva Keshava Kumar Chandrashekarayya G. Hiremath Santhosh Dhungana VTU-PG Studies Belagavi India Department of Civil Engineering VTU-PG Studies Belagavi India Department of Civil Engineering PDIT Engineering College Hosapete India Department of Water and Land Management VTU Belagavi India School of Environment Resources and Development (SERD) Pathumthani Thailand

Six main public domain water quality models which are presently available for Rivers and streams are being captured in this article. These main models could produce important results if they are used in the correct manner, because they are different in terms of assumptions, strength and weaknesses, processes they represent, modeling capability and data in-put requirements. The Model review discussed includes, water quality analysis simulation program (WASP7), simulation catchment (simcat), quality simulation along Rivers (QUASAR), and the temporal overall model for catchment (TOMCAT), QUAL2KW, QUAL2EU. The models are described individually according to a consistent set of criteria-conceptualization, model capability, model strengths, limitations, input data and how it utilized. The outcome showed that TOMCAT and simcat are important in ASSESSING effect of point sources in a very simple way. The QUAL2KW, unlike the QUAL2EU where macrophytes play a major interaction, it can convert algal death to carbonaceous Bio-chemical Oxygen Demand (CBOD), thereby making it more suitable. In addition to the extensive requirement of data, it is expensive and time consuming to set up these complex models such as QUASAR and WASP7. Therefore, one model cannot be used for all the required functionalities. Choosing a model would depend on a specific application, financial cost and time availability. This article may be of help in choosing a suitable model for a specific water quality problem.

关键词： Water Quality Models Dissolved Oxygen simcat TOMCAT QUAL2Kw QUAL2EU WASP7 and QUASAR

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Integration of CATHENA Thermal-Hydraulic Model with CANDU 6 Analytical Simulator Controller

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Journal of Energy and Power Engineering 2013年第12期7卷 2300-2305页

作者： Majid Borairi Hooman Javidnia Dave Wallace Joe Tseng Vincent Lau Florentin Caracas Candu Energy Inc. Mississauga L5K 1BI Ontario Canada

This paper introduces a powerful design and analysis tool named simcat, that is developed to support applications to license a CANDU nuclear reactor, refurbish projects, and support the existing CANDU stations. It consists of the CATHENA （Canadian Algorithm for Thermo-Hydraulic Network Analysis）, the control logics from C6SIM （CANDU 6 Analytical Simulator）, and a communication protocol, PVM （parallel virtual machine）. This is the first time that CATHENA has been successfully coupled directly with a program written in another language. The independence of CATHENA and the C6SIM controllers allows the development of both CATHENA and C6SIM controller to proceed independently.

关键词： CANDU CATHENA C6SIM PVM simcat thermal-hydraulic control system.

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