tailieunhanh - Modeling Tools for Environmental Engineers and Scientists Episode 2

Tham khảo tài liệu 'modeling tools for environmental engineers and scientists episode 2', kỹ thuật - công nghệ, cơ khí - chế tạo máy phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả | PART I Fundamentals 2002 by CRC Press LLC CHAPTER 1 Introduction to Modeling CHAPTER PREVIEW In this chapter an overview of the process of modeling is presented. Different approaches to modeling are identified first and features of mathematical modeling are detailed. Alternate classifications of mathematical models are addressed. A case history is presented to illustrate the benefits and scope of environmental modeling. A road map through this book is presented identifying the topics to be covered in the following chapters and potential uses of the book. WHAT IS MODELING Modeling can be defined as the process of application of fundamental knowledge or experience to simulate or describe the performance of a real system to achieve certain goals. Models can be cost-effective and efficient tools whenever it is more feasible to work with a substitute than with the real often complex systems. Modeling has long been an integral component in organizing synthesizing and rationalizing observations of and measurements from real systems and in understanding their causes and effects. In a broad sense the goals and objectives of modeling can be twofold research-oriented or management-oriented. Specific goals of modeling efforts can be one or more of the following to interpret the system to analyze its behavior to manage operate or control it to achieve desired outcomes to design methods to improve or modify it to test hypotheses about the system or to forecast its response under varying conditions. Practitioners educators researchers and regulators from all professions ranging from business to management to engineering to science use models of some form or another in their respective professions. It is probably the most common denominator among all endeavors in such professions especially in science and engineering. 2002 by CRC Press LLC The models resulting from the modeling efforts can be viewed as logical and rational representations of the system. A model being a .

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