Aerodynamicists use wind tunnels to test models of proposed aircraft. In the tunnel, the engineer can carefully control the flow conditions which affect forces on the aircraft. By making careful measurements of the forces on the model, the engineer can predict the forces on the full scale aircraft. And by using special diagnostic techniques, the engineer can better understand and improve the performance of the aircraft.

Wind tunnels are designed for a specific purpose and speed range and there is a wide variety of wind tunnel types and model ....etc

[:=Read Full Message Here=:]

Relative roles of CFD and wind tunnel testing in the development of aircraft

Introduction
CFD
CFD is computational technology that enables us to study the dynamics of things that flow.
Using CFD, a computational model that represents a system or device that we want to study is built. Then we apply the fluid flow physics to this virtual prototype, and the software outputs a prediction of the fluid dynamics.

Application
fluid flow, heat transfer , mass , phase change , chemical reaction, mecha ....etc

[:=Read Full Message Here=:]

A tunnel diode or Esaki diode is a type of semiconductor that is capable of very fast operation, well into the microwave frequency region, made possible by the use of the quantum mechanical effect called tunneling.

It was invented in August 1957 by Leo Esaki when he was with Tokyo Tsushin Kogyo, now known as Sony. In 1973 he received the Nobel Prize in Physics, jointly with Brian Josephson, for discovering the electron tunneling effect used in these diodes. Robert Noyce independently came up with the idea of a tunnel diode while working for ....etc

[:=Read Full Message Here=:]

To get full information or details of SUB-MERGED FLOATING TUNNELS please have a look on the pages

http://seminarsprojects.net/Thread-floating-wind-turbines

http://seminarsprojects.net/Thread-a-new-interconnecting-method-for-wind-turbine-generator-in-a-wind-farm

if you again feel trouble on SUB-MERGED FLOATING TUNNELS please reply in that page and ask specific fields in SUB-MERGED FLOATING TUNNELS ....etc

[:=Read Full Message Here=:]

car in wind tunnel seminar report and ppt

A wind tunnel is a tool used in aerodynamic research to study the effects of air moving past solid objects. A wind tunnel consists of a tubular passage with the object under test mounted in the middle. Air is made to move past the object by a powerful fan system or other means. The test object, often called a wind tunnel model is instrumented with suitable sensors to measure aerodynamic forces, pressure distribution, or other aerodynamic-related characteristics.

The earliest wind tunnels were invented ....etc

[:=Read Full Message Here=:]

CONTEXT
A Tunnel Boring Machine (TBM) also known as a mole is a machine used to excavate tunnels with a circular cross section through a variety of soil and rock strata. They can bore through anything from hard rock to sand. Tunnel diameters can range from a metre (done with micro-TBMs) to almost 16 metres to date. Tunnels of less than a metre or so in diameter are typically done using trenchless construction methods or horizontal directional drilling rather than TBMs.
Tunnel boring machines are used as an alter ....etc

[:=Read Full Message Here=:]

i need report on submerged floating tunnel ..as i need to do a seminar on this topic ,so i request u sent me a report on this topic as soon as possible..
thanking you
ATISH

i need report on submerged floating tunnel ..as i need to do a seminar on this topic ,so i request u sent me a report on this topic as soon as possible..
thanking you
ATISH
....etc

[:=Read Full Message Here=:]

construction of underwater tunneling and used recently new techniques ....etc

[:=Read Full Message Here=:]

ppt on smart tunnel

The Stormwater Management And Road Tunnel (SMART Tunnel), E38, is a storm drainage and road structure in Kuala Lumpur, Malaysia, and a major national project in the country. The 9.7 km (6.0 mi) tunnel is the longest stormwater tunnel in South East Asia and second longest in Asia.

The main objective of this tunnel is to solve the problem of flash floods in Kuala Lumpur and also to reduce traffic jams along Jalan Sungai Besi and Loke Yew flyover at Pudu during rush hour. There are two components of this tunnel, the stormwate ....etc

[:=Read Full Message Here=:]

A submerged floating tunnel (SFT), also called a suspended tunnel or Archimedes bridge, is a tunnel that floats in the water, supported by its buoyancy (specifically, using hydrostatic thrust or Archimedes' principle).


The pipe is placed under water, deep enough to avoid water and weather traffic, but not so deep that the high water pressure needs to be treated - usually 20-50 m (60-150 ft) is enough. Cables anchored to the Earth or pontoons on the surface prevent them from floating to the su ....etc

[:=Read Full Message Here=:]