Numerical Computation of Nondimensional Form of Water Quality Model in a Nonuniform Flow Stream Using Revised Saulyev Scheme
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นพรัตน์ โพธิ์ชัย
ทีมวิจัย
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นพรัตน์ โพธิ์ชัย
หัวหน้าโครงการ
สุวรรณ ถังมณี
นักวิจัยที่ปรึกษา
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2 มิ.ย. 2557
วัตถุประสงค์
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The approximation of the pollutant concentrations from the FTCS technique that stability requirement is one of the disadvantages of the technique. The real-world problems are requiring a small amount of time interval in obtaining accurate solutions. We can see that the FTCS scheme is not good agreement for real application. From many researches can be obtained that the Saulyev technique has an advantage over compared to FTCS. It is unconditionally stable, easy, and economical to implement.
On my project, the topic is looking for an improvement method that simple finite difference schemes become more inviting for general model use. The simple explicit schemes include Forward-Time/Centered-Space (FTCS) scheme, the Traditional Saulyev scheme and the Revised Saulyev scheme. These schemes are either first-order or second-order accurate (Li, 2007) and (Pochai, 2011) and have the advantages of simplicity in coding and time effectiveness in computing without losing too much accuracy and thus are preceding for several model applications.
