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

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

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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

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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

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A tunnel is an underground passageway, completely enclosed except for openings for egress, commonly at each end.Tunnel engineering makes possible many vital underwater and underground facilities. the constructors and users of these facilities are to be protected from the extreme environments and as a result, special construction methods are to be adopted while the construction of tunnels.most often high pressures and extreme conditions have to be withstood by the tunnels.
The kind of soil and/or rock through which they will pass, the depth, t ....etc

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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

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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

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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

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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

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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

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