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The environment and energy consumption of a subway tunnel by the influence of piston wind
Applied Energy, 2019With the flourishing development of the subway construction, it becomes increasingly urgent to improve the subway tunnel environment and reduce the energy consumption of the tunnel ventilation system.
Minzhang Liu +6 more
semanticscholar +1 more source
The Journal of the Royal Aeronautical Society, 1927
The wind channel and the whirling arm have been devised and perfected over a period of a number of years with a view to providing reliable aerodynamic data for aircraft designers. Of late years the wind channel has been used considerably more than the whirling arm.In the two pieces of apparatus distinct methods are used.
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The wind channel and the whirling arm have been devised and perfected over a period of a number of years with a view to providing reliable aerodynamic data for aircraft designers. Of late years the wind channel has been used considerably more than the whirling arm.In the two pieces of apparatus distinct methods are used.
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2020
Hypersonic wind tunnels are intended for studying the aerodynamics of hypersonic aircraft, space launchers, missiles, projectiles and the atmospheric re-entry of space vehicles.
Bruno Chanetz +5 more
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Hypersonic wind tunnels are intended for studying the aerodynamics of hypersonic aircraft, space launchers, missiles, projectiles and the atmospheric re-entry of space vehicles.
Bruno Chanetz +5 more
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IEEE Instrumentation & Measurement Magazine, 2018
The Eiffel Tower was built for the Paris Exposition of 1889. By 1903, Gustave Eiffel had become interested in the new subject of aerodynamics. In that year, he rigged up a cable from the second floor of the tower to the ground. Test objects could be dropped along the cable, and their reaction to wind resistance could be measured.
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The Eiffel Tower was built for the Paris Exposition of 1889. By 1903, Gustave Eiffel had become interested in the new subject of aerodynamics. In that year, he rigged up a cable from the second floor of the tower to the ground. Test objects could be dropped along the cable, and their reaction to wind resistance could be measured.
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Contraction Cone for a Wind Tunnel
Journal of the Aeronautical Sciences, 1943HSTJE-SHEN TSIEN 1 has given a method for designing x i —. e(/') ^ ^ contraction cones for wind tunnels. This is t a n ^ ~ = ^ i e-^x/a) = 1 + 2 / j(— l) e quite accuiate theoretically but requires complicated m=l numerical calculations. A different solution is given f or 0 < ^ < oo below.
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Wind tunnel tests of the rime icing characteristics of a straight-bladed vertical axis wind turbine
, 2021Wenfeng Guo +4 more
semanticscholar +1 more source
Tunnelling and Underground Space Technology, 2018
In order to investigate the effect of strong environmental wind on a tunnel fire under natural ventilation, a series of numerical simulations were conducted using large eddy simulation method in this study.
C. Fan +5 more
semanticscholar +1 more source
In order to investigate the effect of strong environmental wind on a tunnel fire under natural ventilation, a series of numerical simulations were conducted using large eddy simulation method in this study.
C. Fan +5 more
semanticscholar +1 more source
Building and Environment, 2018
The understanding of natural ventilation in super-long tunnels can help to optimize the design of ventilation systems and reduce energy consumption and maintenance costs. This paper studied the energy-saving effect of natural ventilation in a newly built
Zhiqiang Zhang +3 more
semanticscholar +1 more source
The understanding of natural ventilation in super-long tunnels can help to optimize the design of ventilation systems and reduce energy consumption and maintenance costs. This paper studied the energy-saving effect of natural ventilation in a newly built
Zhiqiang Zhang +3 more
semanticscholar +1 more source
The Journal of the Acoustical Society of America, 1996
An environmental wind tunnel for producing air flow over an automotive vehicle includes a source of air under pressure and an elongated housing for receiving an automotive vehicle. The environmental wind tunnel has an upstream end coupled to the downstream end of the source of air under pressure, so that air is blown axially through the housing from ...
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An environmental wind tunnel for producing air flow over an automotive vehicle includes a source of air under pressure and an elongated housing for receiving an automotive vehicle. The environmental wind tunnel has an upstream end coupled to the downstream end of the source of air under pressure, so that air is blown axially through the housing from ...
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Wind Tunnels: Design Considerations in Wind Tunnel Testing of Cyclists
2019This chapter describes and summarizes design considerations required to develop an accurate and repeatable wind tunnel-based testing program to measure and optimize the aerodynamic drag of athletes, their apparel, and competition equipment. The chapter focuses on drag measurement techniques for the sport of road cycling with the intent that similar ...
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