Vorticity

Chapter 1: Introduction 1.1) Thesis Structure This dissertation aims to provide an optimized shape for rocket nozzle to minimize the variations in flow parameters like temperature, pressure, density and Mach number. The total thrust produced by the rocket nozzle depends upon these parameters and in order to obtain maximum thrust, it is necessary to make sure that the gas, expanding through the nozzle, exits with maximum uniformity-with minimum abrupt variations in temperature, pressure, density and

Factors that Influence Rainfall in the United States A type of precipitation is rainfall and it develops when water vapor condenses into droplets in the atmosphere thus becoming too heavy to stay suspended in the air so gravity causes them to fall. The pattern or occurrence of rainfall in the United States or basically anywhere in the world depends on several factors such as ground elevation, wind directions, location within a continental mass, areas of low pressure, cool fronts, jet streams and

The Relative Importance of Four Variables as Possible Indicators of Wake Length. Introduction In rivers there are objects that cause more of an obstruction to the overall flow and so generate more resistance than the surrounding grains. This is because they are larger than the bed’s grains and thus they are sometimes known as large roughness elements. Large roughness elements are an important feature in the river bed since they block the path of the flow. Obstructions embedded in a bed such as stones

Tropical cyclones (TCs) are of the most extreme and dangerous weather phenomena on Earth. In the United States, landfalling TCs account for an average of $10 billion damages annually (Pielke et al. 2008). Hurricane Katrina (2005) alone caused $81 billion of damages and took more than 1,800 lives away. In developing countries, TC landfalls can be extremely detrimental. For example, Cyclone Nargis (2008) took more than 130,000 lives in Myanmer (Burma) . Due to the catastrophic nature of TCs, substantial

AKNOWLEDGEMENT We would like to thank Mr. M. K Pal for his guidance and constant motivation towards carrying out the tasks. We would also like to thank all the members of ITR Target Systems Group including Mr. P Mallick, Mr. N Subudhi& Mr. S R Pradhan, who helped us through all our problem. With their patience and openness they created an enjoyable environment. Furthermore we want to thank all the Scientist and students with whom we did all the project work and experienced great things together

HELICOPTER THEORY Aerodynamics of a Helicopter Rotor in Forward Flight Introduction Early History Modern History Flapping Hinges Maximum Speed Cyclic Control Momentum Theory Blade Element Theory Rotor Wake Summary References Home Based on a paper originally written by Doug Jackson Spring 2000 Introduction: Even though the design of the modern helicopter was not perfected until the late 1930s, it is arguably one of the earliest ideas for