NASP take-off lift loss alleviation

Morris, Gary J.; Smith, Garett; Bond, Ryan B.; Loth, John L.

doi:10.2514/6.1997-296

Cited by 1 publication

(1 citation statement)

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“…Some experimental studies were performed by blowing air axially along a constant‐diameter cylinder to measure the forced convection coefficient. Morris et al 17,18 developed a correlation for the local convective heat transfer coefficient based on the fiber diameter, the temperature difference between the fibers and the airflow, the airflow speed, and the angle between the airflow and the fibers where V is freestream airflow velocity (m/s), d is the diameter of fibers (m), and θ is the angle between the airflow and the fibers (rad). Using this equation with a fiber diameter of 30 μm and drawing speed of 13.6 m/s, we obtain a forced convection coefficient for air flowing along the cylinder of about 1000–1200 W/m 2 K, which is consistent with results obtained by other authors.…”

Section: Technical Approachmentioning

confidence: 99%

Parametric Study of Glass Fiber Drawing Process

Liu

Banta

2010

Int J of Appl Glass Sci

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Drawing of glass fibers is an important industrial process used for the manufacture of a variety of materials ranging from optical communications cables to fiber filter media. A variety of machines exist for performing the drawing function, but all share similar problems with control of the fiber diameter and breakage of the fibers during the extrusion process. In many cases, control systems are not configured to monitor the most critical process variables, but instead use only furnace crown temperature. Upsets in disturbance variables such as ambient temperature are compensated manually by operators, usually only after significant problem with fiber breakage occur. This work seeks to provide a better understanding of the effects of important process variables on the key quality and production parameters such as fiber diameter and production rates.

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Section: Technical Approachmentioning

confidence: 99%