섬유

a construction technique for wind-tunnel models: integrally machined orifices and channels offer advantages over traditional miniaturized plumbing

  • 출판일1999.03
  • 저자
  • 서지사항
  • 등록일 2016.11.02
  • 조회수 323
this citation summarizes a one-page announcement of technology available for utilization. miniature wind-tunnel models must satisfy stringent physical requirements, including high strength, good surface finish, and corrosion resistance. some of the most troublesome problems result from the internal steel tubes that lead to small, pressure-sensing, surface orifices. these tubes may plug or leak, and the cavities they require weaken the model. since the plumbing cannot be installed until late in the machining process, considerable fabrication time is wasted if defects arise at that point. these problems are overcome by machining the pressure channels as an integral part of the model. ...for additional information: contact: the patent counsel, langley research center, hampton, va refer to lar-12710
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