Behavior of fast moving flow of compressible gas in cylindrical pipe in presence of cooling

One of 1,437 reports in the series: NACA Technical Memorandums available on this site.

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Description

For compressible flow with friction in a cylindrical pipe the momentum, continuity, and heat-transfer equations are examined to determine whether an increase in Mach number ("thermal" Laval nozzle) is obtainable through heat conduction from the gas through the pipe walls. The analysis is based on the assumption that the wall temperature is negligibly small in comparison with the stagnation temperature of the gas. The analysis leads to a negative result. When the gas cooling is increased by also considering radiation to the wall, a limited region at high temperatures is obtained where Mach number increases were theoretically possible. Obtaining this ... continued below

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Varshavsky, G A September 1, 1951.

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This report is part of the collection entitled: National Advisory Committee for Aeronautics Collection and one other and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 75 times . More information about this report can be viewed below.

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  • Main Title: Behavior of fast moving flow of compressible gas in cylindrical pipe in presence of cooling
  • Series Title: NACA Technical Memorandums

Description

For compressible flow with friction in a cylindrical pipe the momentum, continuity, and heat-transfer equations are examined to determine whether an increase in Mach number ("thermal" Laval nozzle) is obtainable through heat conduction from the gas through the pipe walls. The analysis is based on the assumption that the wall temperature is negligibly small in comparison with the stagnation temperature of the gas. The analysis leads to a negative result. When the gas cooling is increased by also considering radiation to the wall, a limited region at high temperatures is obtained where Mach number increases were theoretically possible. Obtaining this condition practically is considered impossible.

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  • Accession or Local Control No: 93R23277
  • URL: http://hdl.handle.net/2060/19930093951 External Link
  • Report No.: NACA-TM-1274
  • Center for AeroSpace Information Number: 19930093951
  • Archival Resource Key: ark:/67531/metadc63027

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National Advisory Committee for Aeronautics Collection

The National Advisory Committee for Aeronautics (NACA) was a U.S. federal agency founded on March 3, 1915 to undertake, promote, and institutionalize aeronautical research. On October 1, 1958 the agency was dissolved, and its assets and personnel transferred to the newly created National Aeronautics and Space Administration (NASA).

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Creation Date

  • September 1, 1951

Added to The UNT Digital Library

  • Nov. 17, 2011, 5:13 p.m.

Description Last Updated

  • March 26, 2018, 4:24 p.m.

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Varshavsky, G A. Behavior of fast moving flow of compressible gas in cylindrical pipe in presence of cooling, report, September 1, 1951; (digital.library.unt.edu/ark:/67531/metadc63027/: accessed June 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.