Wind tunnel

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    A wind tunnel is a key instrument used by Aerospace engineers to accurately measure the aerodynamic forces and moment on an aircraft model. The aerodynamic forces and moments that the model experience then can be compared to the real-life conditions that an aircraft experiences in real-time. An important in tool that allows us to find these different force is the L.A. Comp wind tunnel’s pyramidal balance. This kind of balance allows aerospace engineers to measure all the force: lift, drag, and side

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    involved testing three wing designs in a wind tunnel. First, the wind tunnel was turned on with nothing inside and the flow velocity was recorded. Then, the first airfoil, a pre-built standard NACA 0024, was tested. It was put in the wind tunnel in the 0° slot on the Kelvin Lift & Drag Balance arm and locked in place. The balance was then calibrated so that the LIFT value read zero, and the wind tunnel was turned on to its high setting. Once the wind tunnel reached its maximum speed of approximately

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    safety of the caverns. She looked up into the sunlight, trying to see the top of the cliff that she somehow had to get up onto. Stretching out her hands, she called the wind to her. It came willingly, smiling to herself as she felt the familiar breeze wisp through her fingertips. Closing her eyes, she called more of it. The wind started to run around her, making her hair whip into her face. She felt herself lift off the ground. As she climbed higher towards the top she made the mistake of looking

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    In the medium air speed wind tunnels where wind speed ranges from 1.5 – 40m/s, several types of wind tunnels can be applied. At first, an open suction type wind tunnel can have a large test section with high contraction ratio [3]. This type of wind tunnel has a large inlet area to take motionless air to the test section. Air filters can be installed before the inlet to prevent any dust from

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    A short term wind tunnel test rig known as the QinetiQ Isentropic Light Piston Facility (ILPF) is capable of “aero-heat transfer” testing of a turbine the size of an engine under real life conditions. Initially this facility was designed for testing of a single high pressure turbine stage but was recently converted to being able to test 1.5 stages of the turbine. One of the exclusive features of this facility is the aerodynamic turbo brake that is driven by the turbine exit flow on the same shaft

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    the inflow wind velocity fluctuations on the pressure distribution over the roof surface of TTU full-scale building. In total, the results of three CFD LES cases are presented in this section as follows: (1) CFD LES at location 7 (TI=25%, TLS=10m); (2) CFD LES at location 7 (TI=30%, TLS=15m); (3) CFD LES at location 3 (TI=25%, TLS=10m). The results of mean and peak pressure distribution over the roof surface for each cases are compared with full-scale field measurements and wind tunnel data within

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    A Short Story : A Story?

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    It was a normal day at the Williams house at 7:30 a.m. on a Saturday morning. Tim Williams was a small, muscular little boy who had brown hair that spiked up in the front. Tim was like any other twelve year old boy in the little town of Watermill he loved playing sports. ( 1. ) Tim had so much sports equipment in his room along with shoes and clothes all over the floor, he didn't know what to do with it all. Tim was just watching cartoons eating waffles when his mother walked in with a furious look

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    world definitely took advantage of their physical strength. Five great examples of this are: building roads, quarrying, operating cranes, digging wells, and constructing tunnels. All of these tasks could only be completed with an immense amount of endurance and strength. Anything from laying rocks to digging out an entire tunnel was a difficult and grueling task. In many cases, a great deal of human physical strength was required to fully exploit the technologies and technical practices developed

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    Stepping out onto Canadian soil is the dream of any new immigrant coming to create a new life for a fresh start. The strong images of digging, logging, and construction are just some of the rough edged images that many do not consider when imagining the Canadian Dream. The Canadian Dream in the minds of workers in Michael Ondaatje’s, In the Skin of a Lion, is labouring to create life for themselves and working towards a steady future. Abbott describes the masterplot as “stories that we tell over

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    the performance of sprinklers for tunnel protection was conducted in the Ofenegg tunnel in Switzerland in 1965. The tunnel was an old single track railway tunnel, 4 m wide at the base and 6 m high. Three fire sizes obtained with aircraft petrol fuel were used in the test with following specifications: (a) 100L and 6.6 m2 pool size; (b) 500 L and 47.5 m2 pool size; and (c) 1000 L and 95 m2 pool size. Two lines of sprinklers were installed on the ceiling of the tunnel. The water capacity was 19 L/(min

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