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International Journal of Energetic Materials and Chemical Propulsion

Publication de 6  numéros par an

ISSN Imprimer: 2150-766X

ISSN En ligne: 2150-7678

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METHODS OF ANALYSIS OF T-BURNER EXPERIMENTAL DATA

Volume 21, Numéro 1, 2022, pp. 1-20
DOI: 10.1615/IntJEnergeticMaterialsChemProp.2021038970
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RÉSUMÉ

The measurement of response function for a given solid propellant is mostly done using a T-burner to address the issue of combustion instability in solid rocket motors. Once the experiment has been conducted, it becomes important to carefully analyse and reduce the data to the required response function using the measured pressure. Six different methods of analysing the experimental T-burner data are presented in this paper. An experiment conducted at 1 MPa pressure at 390 Hz frequency is utilized for this purpose. Detailed procedure is given to calculate the growth rate, decay rate and the response function for a self-excited test. These methods include Perry's method, Culick's method and exponential method with different combinations which is reported for the first time. Analyzing with different methods revealed that Culick's method is better and more consistent than the other methods. The response function of the given solid propellant calculated using this method for the self-excited tests of T-burner is in good qualitative agreement with the response measured using Laser Doppler Velocimetry technique.

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CITÉ PAR
  1. Ganesan S., Chakravarthy S. R., Effect of Initial Grain Temperature on Combustion Response of Composite Solid Propellants in T-burner, Combustion Science and Technology, 2022. Crossref

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