Fluid mechanics Assignment Example | Topics and Well Written Essays - 2000 words - 1

Fluid mechanics - Assignment Example (1) Continuity Equation: from the consideration of mass conservation one can show that the net volume of fluid per unit time always remains constant as the fluid is incompressible (no variation in density), giving us where HL denotes the Head Lost due to fluid resistance, and all other symbols expressing usual meanings. While the first term is known as Static Head or Pressure Head, the second term is called Velocity Head; and the third term, denoting the Potential Head is zero in our case as the height of the axis at the inlet and outlet is same. In order to verify the basic laws of fluid dynamics, we have used a Venturi Tube or Venturimeter as described in the figure above. The fluid (water in our case) is allowed to flow in through the left-hand-side valve and it goes out through the right-hand-side valve of exactly equal cross-sectional area. In between these two extreme ends, there exists 9 other locations along the axis of the Tube where capillaries are inserted to measure the Pressure Head of the fluid flow from the height of the water in each tube. Thus, one can measure pressure at 11 different locations along the axis of the Venturimeter which is assumed to be the zero Potential Energy line for the fluid. As soon as the fluid flows through the Tube, the total time taken by it to cross-over the horizontal length of the Tube is also noted using a stopwatch, to calculate the Volumetric Flow Rate after determining the total volume of water collected. Besides, the height of the water in each of the 11 different capillary tubes is also measured and tabulated in Tables 1-3 below, for 3 different volumes of inflows. We observe here as well that there exists mismatch in the Total Energy. Since the Total Energy at the inflow valve was 0.2793 and that at the outflow valve was 0.2402, the Head Lost due to fluid resistance may be calculated as Another important observation needing special mentioning is that of Head Lost due to flow

Business information system Essay Example | Topics and Well Written Essays - 1500 words

Business information system - Essay Example In this report, the key problems being faced by the school system were identified. Some of the main issues included delayed processing of administrative tasks, duplicated purchasing of equipment, difficult access to information for teachers, poor interpretation of documents, and poor resource management. To tackle those problems, a business information system was proposed and discussed in detail using concepts from authoritative sources. In the end, the implementation plan was also given to help the management of the school in the implementation of the proposed system. 1. Introduction (Proposed System) Improved access to information is the key to success in today’s business world. Every company belonging to any particular industry needs information to excel and take critical decisions regarding different business matters (Earl, 1996). The importance of using information systems in businesses can be known from the fact that they help managers and employees in processing of info rmation, as well as in doing business analysis. Using an information system, users can retrieve required information in the form of well-structured reports. Moreover, they can also perform their job related tasks quickly and efficiently using information systems. ... 2. Literature Review As Oz (2009, p. 9) states, â€Å"information is the lifeblood of any organization†. It is impossible for the management of a school or any other company to run business and administrative matters without information. For good organization and management of information, business information systems offer proper solutions. In general, business information system refers to the management of information in such a way that it can be used by the staff easily to run different business activities. According to Abel (2008), information system is an important software application that makes use of information technology tools to help people in information processing and management. The main thing is that this system helps users in retrieving right information in a timely manner. Improved access to information is one of the most attractive features regarding the use of this system. Business information systems are able to perform all tasks related to management of in formation some of which include storing of data, editing of data, processing of data into required information, organizing information in a proper format so that it do not get duplicated, and generating relevant reports based on the stored data. This system also helps companies in inventory management. A business information system is a valuable part of internal business control system that helps staff in managing inventory, supplying required systems, and managing information and procedures (Martin, 2010). The importance of business information systems in businesses cannot be denied. According to Stahl (2008, p. 1), information systems improve accuracy, reliability, safety, efficiency, and optimal control of business processes. if we talk about the