Thermodynamic and Fluids Report Coursework Example | Topics and Well Written Essays - 1750 words

Thermodynamic and Fluids Report - Coursework Example In the second part we shall use a pitot static tube to determine the behavior of air flow. The basic principle of both the pitot, static and pitot static tube is that the pressure of a flowing fluid will increase if it is brought to rest at a point of stagnation of the probe. If an assumption is made that if the flow in the fluid is similar to that of a gas, the velocity of the fluid will be much smaller as compared to the speed of sound such that the changes in the density may be overlooked (Bertin, 2002). Therefore, the fluid basically behaves like an incompressible fluid. The point of stagnation can be located on the system and the streamlines can be bent past the body of the aircraft. The pressure experienced at the point of stagnation is referred to as the stagnation pressure. If the viscous effects experienced by the body are negligible, the difference between the stagnation pressure and the static pressure is usually related to the dynamic pressure which is then related to the square of the velocity (Panton, 2005). Therefore, the velocity information is then conver ted to a pressure difference which can e measured by a measuring device for pressure such as the manometer (von Kà ¡rmà ¡n, 2000). The static tube is composed of a cross section surface with tubes and a manometer. The air flows across the cross section into the manometer where the density of air can be determined. The manometer allows for the determination of the static pressure, the dynamic pressure and the stagnation pressure of the fluid. The pitot static tube is a combination of the static and pitot tube. In this tube, the flow in the tube is axi-symmetric and within the vicinity of the nose. The pitot tube is then connected to one limb of a U tube manometer while the other limb of the manometer is connected to a tap made on the tube wall. Both the tap and the nose of the tube approximately on the same planes. An

Capital Strucutre Essay Example | Topics and Well Written Essays - 500 words

Capital Strucutre - Essay Example Based on the above assumption, the theory suggest that the firm value is independent of the capital strucutre and there is no fixed combination of the debt and equity which can suggest that it this level the firm has the optimum capital strucutre. However, in practice it is largely believed that the capital strucutre with 60% of debt and 40% of equity can be optimum for the firm. Higher debt capital may fund the growth of the firm however with increasing debt, it becomes hard for the organisations to keep the financial covenants of their debts intact therefore high debt ratios incur further risk for the organistion therefore there is no such magical relationship between debt to book capitalization ratio. The debt to book capitalization therefore vary from industry to industry and there Is no solid formula to determin tha the debt to book capitalization ratio of 60% therefore there is no capital strucutre theory under which it can be justified that a debt to book capitalization ratio should be 60%. A greenfield project is one which is built from scratch and is not constrained by any previous work. These projects are mostly constructed on the unused land where there is no room or need required to remodel the existing piece of land to demolish the existing strucutres. According to the transcation theory of foreign direct investment, the mode of entry into markets especially foreign markets depends upon how efficient the greenfiled projects will be as compared to the domestic facilities. If the greenfield projects are going to give more efficient results than the existing ones than going for greenfield projects can be a good move however if efficiencies are not achieved than in that case greefield projects may go awry. Therefore one of the most important lesson which can be learned from this is the fact that how good greefield projects can bring the desire efficiency and effectiveness in the company specially with relation to the operational efficiency. (Hennart). Apart from that the greenfield projects providethe organisation necessary room to look for better and more efficient resources.