drag reduction in ships using microbubbles technology ....etc

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1. INTRODUCTION
Drag is a mechanical force generated by a solid object moving through a fluid. For drag to be generated, the solid body must be in contact with the fluid. If there is no fluid, there is no drag. Drag is generated by the difference in velocity between the solid object and the fluid. There must be motion between the object and the fluid. If there is no motion, there is no drag. Drag acts in the direction opposite to the direction of motion of the body.
A body moving through a fluid experiences a ....etc

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Research on Aerodynamic Drag Reduction by Vortex Generators




Introduction

To save energy and to protect the global environment,
fuel consumption reduction is primary concern of
automotive development. In vehicle body development,
reduction of drag is essential for improving fuel
consumption and driving performance, and if an aerodynamically
refined body is also aesthetically attractive,
it will contribute much to increase the vehicle’s appeal
to p ....etc

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ABSTRACT
VORTEX GENERATORS
This topic provides basic working principle of a vortex generator suitable for automobiles. Vortex generator has a vital role in increasing the fuel economy and aerodynamic stability. This enables them reduce the drag force acting on it.
There are several methods for positioning the vortex generators over the vehicles. The key results of a simple experiment conducted on Toyota prius exemplifying the advantages of vortex generators discussed here.

Submitted By: Sarun ....etc

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Alternative approaches to rear end drag reduction

Introduction

Aerodynamic drag of a commercial vehicle is a large part of the vehicles fuel consumption,
according to Hucho it can contribute to as much as 60 % of the vehicles fuel consumption.
So far aerodynamic design of commercial vehicles has concentrated on the front end of the
vehicle. Since it produces most drag it has been the most urgent part to optimise. This
optimisation can easily be spotted on trucks and tourist coaches. The rear end confi ....etc

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can u send me the ppt of drag reduction system & kers
no may be some time later i will do it... ....etc

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ABSTRACT
Drag is a mechanical force generated by a solid object moving through a fluid. For drag to be generated, the solid body must be in contact with the fluid. Drag is generated by the difference in velocity between the solid object and the fluid. Drag acts in the direction opposite to the direction of motion of the body.
Microbubbles is a drag reduction device that reduces skin friction of a solid body moving in water by injecting small bubbles into the turbulent boundary layer developing on the s ....etc

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Ppt is missing..
Pls help its urgent... ....etc

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advantages and disadvantages of use of micro bubbles in ship ....etc

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what is problem occurs if we use vortex generator for drag reduction???
anusha ....etc

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