Non-steady Combustion of Solid Propellants with Special Reference to Rocket Instability

Released on by Herman Krier
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  • Non-steady Combustion of Solid Propellants with Special Reference to Rocket Instability Book Detail

  • Author : Herman Krier
  • Release Date : 1966
  • Publisher :
  • Genre :
  • Pages : 38
  • ISBN 13 :
  • File Size : 82,82 MB
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Non-steady Combustion of Solid Propellants with Special Reference to Rocket Instability by Herman Krier PDF Summary

Book Description: A prominent mode of coupling that may drive a solid propellant rocket motor into instability is the interaction between the oscillatory gas dynamic pressure at the burning surface and the instantaneous rate of the oscillatory pressure fluctuations and of rapid monotonic pressure increases are being investigated in a continuing program. Two pieces of apparatus are in use for this purpose. One is the T-tube oscillator. The latter is a chamber with a device to change suddenly on command the throat area of the nozzle to produce pressure rise times of 8,000 psi per second and less. This low range supplements the higher range achievable in the T-tube oscillator. The chamber has three quartz windows which allow luminosity measurements and high speed motion pictures of the propellant flame to be made along with chamber pressure. By varying the chamber volume, and thereby the dp/dt, luminosity versus pressure can be obtained as a function of dp/dt. From this, the temperature is plotted as a function of pressure and dp/dt, and therefore the entropy is plotted as a function of the same variables. The brightness-emissivity method of instantaneous flame temperature measurement is being used. Experiments are being conducted to determine the flame temperature as a function of pressure in various regimes of dp/dt. (Author).

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Solid Propellant Rockets

Solid Propellant Rockets

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Part of the Princeton Aeronautical Paperback series designed to bring to students and research engineers outstanding portions of the twelve-volume High Speed Ae