The vortex tube , also known as the Ranque-Hilsch vortex tube , is a mechanical device that separates a compressed gas into hot and cold streams. Pressurised gas is injected tangentially into a swirl chamber and accelerated to a high rate of rotation. Due to the conical nozzle at the end of the tube, only the outer shell of the compressed gas is allowed to escape at that end. The remainder of the gas is forced to return in an inner vortex of reduced diameter within the outer vortex. This approach is based on first-principles physics alone and is not limited to vortex tubes only, but applies to moving gas in general. It shows that temperature separation in a moving gas is due only to enthalpy conservation in a moving frame of reference.
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Heartland, an important new play by Gabriel Jason Dean, is now up at the Vortex. The longish, heavily scripted work takes on geopolitics, especially the alt-tidal forces sweeping back and forth across Afghanistan and the United States. In the tradition of the best modern plays, Heartland also tells several stories at the same time, tracks up-to-the-minute, and shows great heart. This latter quality is sure to make it evergreen, some day to enter the canon. The play is almost all aftermath. The message of the death by Taliban violence of Getee played by Kacey Samiee is conveyed back to her home in Nebraska. Unmarried, she was the adoptive Afghan daughter of a professor of Afghan studies and literature, Dr.
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Modernist poet Ezra Pound played a central role in the Imagist and Vorticist movements. Vorticism, a pre—World War I movement led by British painter and writer Wyndham Lewis, sought to capture the mechanical dynamism of its age as well as the stillness at its core. While Vorticist art often emphasizes structural mass and a combination of movement and central stillness through the use of thick borders and typographical inventiveness, Vorticist poetry focuses on locating the movement and stillness within the image.
Kshirsagar , V. Skip to search form Skip to main content You are currently offline. Some features of the site may not work correctly. Kshirsagar and V. Ankolekar Published Computer Science International Journal of Engineering Research and Applications The vortex tube is device, which produces hot and cold air streams simultaneously at its two ends from a source of compressed air without any moving part.