descent to impact. Along with the measure of time in air the distance will be measured or calculated, as well as the highest point it went in the air, this will allow for calculations of velocity of the plane so it can be seen how the aspect ratio effects the velocity. Finally analysis of the data will show both raw data and statistics in the paper. For safety, goggles will be needed so the paper airplanes will not be able to be projected into someone’s cornea. The prediction for how aspect ratio will
cost is direct related to the fuel efficiency of the mode of transport used. The biggest influencing factors are the transport aerodynamics, the type of engine used and the speed of the engine. Firstly aerodynamics, the drag created by the wind requires more fuel to propel the truck or vessel forward. In the figure below one can see what can be done to enhance the aerodynamics of a truck. Adding a roof faring or wind deflector can save almost 7% of fuel. Secondly the type of engine – A well tuned
This phenomenon known as Coanda effect, is the operating principle of the fluidic thrust vectoring system discussed here. Two secondary jet nozzles are placed above and below the main jet nozzle. Deflections of the secondary jets caused by curved surfaces mounted alongside them trigger
ESTIMATION OF AERODYNAMIC DERIVATIVES IN PITCH OF A WEDGE IN HYPERSONIC FLOW ABSTRACT In the present paper a theory for 2-D slender bodies at high angles of attack in hypersonic flow has been developed. This theory has been applied to a sharp thick wedge with attached shock case. Using the theory a relation for a piston moving in a cylinder at any velocity and relations for stiffness and damping derivatives are obtained for zero incidence of the wedge and it is found to be
called diamagnetism, and a perfect conductor will be a perfect diamagnetic. So, induced currents in it would meet no resistance, they would persist in whatever the magnitude necessary to cancel the external field changes. Mixed-State Meissner Effect In Type II superconductors the magnetic field is not excluded completely, but is constrained in the filaments within the material. These filaments are in normal state and are surrounded by super currents called a vortex state. These types of materials
sphere forms a perfectly symmetrical pattern. Now we need to consider the pressure distribution of the surface of the sphere. The difference between high-pressure regions and low-pressure regions create the aerodynamic forces on the sphere, for example lift and drag, and leads to the Magnus effect which is where the pressure decreases where the speed of the fluid increases. The pressure at the front of a sphere is very high, so the air impacting on the front face creates drag. The pressure at the back
adjacent residents and the level of carbon dioxide emissions of Shanghai maglev train can be solved without any other side effect. 1.1. Quietness Noise pollution becomes one of the important factors in the environmental impacts that should be considered cautiously. It actually affects the residents of the surrounding area, and it also brings detrimental effects to the local ecosystem. However, Shanghai maglev train impacts on society by its astonishing quietness in facts, it does not
and disadvantages of using models to produce knowledge of the world. Models are used widely in a diverse array of knowledge areas including both the natural sciences and human sciences for a dual-pronged purpose. The first is to explain the cause-effect relationships underlying the observable phenomenon and the second is to predict future behaviour based on fundamental principles that explain the observable. These two propagated outcomes can then aid one in producing knowledge about how the world
car with clay was more fuel efficient than the smooth car with clay, after trying to prove a myth. The myth states that the dirty car would be more fuel efficient because the dirt on the car would create a golfball effect on the surface of the car, which would make the car more aerodynamic and thus more fuel efficient. In reference to the myth, the first experiment was to test the fuel efficiency of a car, that was altered clean and dirty. To test it, the Mythbusters used a fuel tank, attached to the
Farnborough Air show I know that the aerospace industry is vast and changing. I am keen to develop a greater understanding of current innovations within the field. In particular during my undergraduate studies I look forward to learning more about aerodynamics, I am aware that in the first year I will embark on a study of all engineering