| 词汇 | example_english_wind-tunnel |
| 释义 | Examples of wind tunnelThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. The applied measurement techniques have been used to characterize both plasma generator and plasma flow condition in the plasma windtunnel. Autorotational motion can take place either in free flight or when a plate is pinned to rotate about a given axis in a windtunnel. The single-contraction windtunnel contained three cells due to small mean flow irregularities. Some results of an experimental investigation of forces associated with the subsonic flow of air around a circular cylinder in a windtunnel are presented. This work is mainly an account of some experiments in which drops of water were dropped under gravity into a vertical windtunnel. The hot-wire signals were processed entirely by analogue methods, mainly because windtunnel time was inexpensive in comparison with available digital computers. The particles used in each experiment were placed on the windtunnel surface, forming a layer roughly 2 cm thick. Warhaft measured the fluctuation statistics of the thermal field downstream of one or more parallel heated wires behind a grid in a windtunnel. Flow conditions in the windtunnel were assessed using hot-wire probes, placed just upstream of the splitter-plate trailing edge. Pebbles from random beach sample used in windtunnel. The reason may be that the effects of external heat input or cooling remain confined to a region near the windtunnel wall. Detailed calculations are given showing the use of such a compressor to heat air for use in a hypersonic windtunnel. It was mounted across the width of the windtunnel 23 m downstream of the test-section entrance with its axis 0.61 m above the floor. Not only the mean velocity and pressure gradients in the windtunnel, but the tunnel turbulence level, as well, must be minimized. The acoustic waves were produced by a loudspeaker placed outside the windtunnel and guided through a tube into the tip of the chamber. The stilling section of the windtunnel is divided into two independent sections by a splitter plate. The free-stream turbulence level in the windtunnel is less than 0-05% at this speed. The deflector profile was evolved in windtunnel tests. 10. These aerodynamic coefficients are typically determined through windtunnel or flight-test data. Prealighting behaviour, aphid responses to plant volatiles, and leaf surface exploration behaviours were tested with windtunnel, olfactometry bioassays and video-recording, respectively. The windtunnel test section is 30 ft. long and is indoors. The calculations have shown that a strongly dissociating flow can be produced by the free-piston driven shock-tube windtunnel. The degree of two-dimensionality was determined by measuring mean velocity profiles over the entire cross-section of the windtunnel using hot-film anemometry. Measurements were made in an open-return low-turbulence windtunnel with a working section of 350 mm x 350 mm, 2.4 m long. The vertical wind velocity profile in the windtunnel was measured with a hot-film anemometer. The unsteadiness can be avoided by using a steadily heated, thermally stratified windtunnel, as is done here. The open windtunnel provided a uniform external flow surrounding the jet. This type of flow can be generated in the laboratory by inserting a 'homogenizing device ', such as a windtunnel grid, into the upstream region. The boundary layer was formed on a flat wall in a special windtunnel in which a variety of adverse pressure gradients could be obtained. An experimental study of the interaction of a turbulent boundary layer with a wavy wall was conducted in a windtunnel. Similar measurements were made in the boundary layer on the floor of our windtunnel, giving rise to similar conclusions. The pins were rigidly attached to the yoke straddling the windtunnel. Such studies have been of two types : passively stratified windtunnel studies and actively stratified salt-water tunnel studies. The streamwise vortices were localized in the windtunnel and therefore the time-averaged lateral velocity was non-zero. A splitter plate separated the windtunnel into two sections whereby two independent airstreams were generated. Recently, induction velometry has been used in a plasma jet windtunnel and a shock tube where the gas behind a shock was ionized. The flat plate was 3.08 m long and spanned the windtunnel at midheight. The rotating elements spanned the full width of the windtunnel thereby approximating two-dimensional flow, and thus representing infinite aspect ratio plates. The linearizer output voltages were calibrated to known flow conditions in the windtunnel test section with the shear-turbulence generator removed. The flow into the test channel is supplied by a specially constructed windtunnel, consisting of centrifugal fan, diffuser, filters and contraction. For convenience of flow observation, both the test section of the windtunnel and the flat plate were made of transparent acrylic resin. To verify the theory hemispheres of ice were melted in a subsonic windtunnel with controlled humidity. The flat-plate boundary layer was measured on the floor of the windtunnel, along the centreline of the test section. Since these velocity distributions were obtained by a long time average, the existence of the wavy pattern implied that the streamwise vortices were localized in the windtunnel. But if the feedback path is outside the jet then when the windtunnel is turned on the speed of the upstream-propagation sound wave will be reduced. For example, it was demonstrated both in the windtunnel and the water channel that turbulent spots are also present during transition in the axisymmetric flow along a circular cylinder. It is the purpose of this work to use the calculation method to demonstrate the chemical non-equilibrium effects in the flow produced by the shock-tube windtunnel. That figure does not however, cover the cost of basic research work, windtunnel tests, etc. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have a concrete and glass windtunnel. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Windtunnel tests were not made before the company opened. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I understand that this is, in fact, a cryogenic windtunnel. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 A windtunnel may cost as much as £8 million. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Soil tests are at present being carried out and windtunnel tests are planned to start soon. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Only one new windtunnel is in the planning stage at present. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Windtunnel tests of further modifications give rise to further optimism. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 But could he not be a little more cheerful when he says that he prefers a windtunnel to a wine mountain? From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is like trying to design aeroplanes without either a windtunnel or computational fluid dynamics codes with which to test the designs. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Nevertheless, the windtunnel work and research should continue without going on with the full project. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Thousands of windtunnel hours have been devoted to the study of the configuration. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The windtunnel tests showed this susceptibility of this type of heater to draughts. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It explains why that building, which should be the shrine, the oracle of peace-loving men, has become a sort of up-ended windtunnel. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 One must have the whole windtunnel which is used equally for military or civil work. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 For example, there is a risk of an enormous windtunnel through the centre of the blocks and out into the areas around. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 At any rate, somebody thought to try a stove of this type in the new windtunnel, and this defect, of which until then all were in ignorance, was found. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 It is inevitably a slow process to increase the windtunnel facilities, the high-altitude test chambers and the engineering manpower, and we can more quickly reduce the number of projects. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There were no prior windtunnel tests of this particular size of tower, but tests to develop design have been carried out for nearly ten years. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I would only say that we cannot really construct a perfect model without a windtunnel, and the wind tunnel will be the operation and growth of this institution itself. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 After the commissioning of the plant in early 1975 it became clear that there were difficulties in dispersion and windtunnel tests were carried out later in that year. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Exner is also credited with using used windtunnel testing to move the company away from boxy-looking cars into more aerodynamic designs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. For further study of the physics of flying, skydivers were filmed in a vertical windtunnel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Various propellers and fan types can be used as the mechanism to move air through a vertical windtunnel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The airflow of an indoor vertical windtunnel is usually smoother and more controlled than that of an outdoor unit. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Many people had never seen a vertical windtunnel before, and were fascinated by the flying humans with no wires. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. An extra radiator is included to assist cooling and is integrated into the windtunnel designed fairing. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The assembly is then fixed on the test section of the windtunnel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. He studied and trained human aerodynamics for four months in a windtunnel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. From this a windtunnel model was designed. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The concept proceeded to windtunnel testing with a variety of scale models. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. To ensure occupant comfort at the top of the building windtunnel testing was conducted by the structural designers. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. In the windtunnel industry, size is everything. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. They designed the wing based on data from extensive airfoil tests conducted on a homemade windtunnel. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Other notable campus facilities include a pressurized windtunnel and a towing tank for testing ship and ocean structure designs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The second prototype had to be substituted for the remainder of the windtunnel tests and the initial flight tests. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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