Distributed combustion response function modeling and measurement

E. H. Cardiff, M. M. Micci

Research output: Contribution to conferencePaperpeer-review

Abstract

A Velocity-Coupled Distributed Combustion (VCDC) magnetic flowmeter has been developed to measure the velocity-coupled response of aluminum particles above a combusting solid propellant. In order to measure the VCDC response, a transverse velocity oscillation is coupled to an axial acoustic wave, which is generated inside of the chamber by means of a toothed gear rotating above a choked nozzle. The use of a magnetic flowmeter allows the acoustic velocity inside of the chamber to be measured. Combined with simultaneous measurements of the acoustic pressure, the acoustic conditions inside of the chamber can be characterized. The experimental results are analyzed by comparison to a numerical model to obtain a value of the VCDC response. The model incorporates the dynamics of a combusting aluminum particle in a rocket flow environment and an acoustic model to obtain the acoustic conditions inside of the VCDC chamber. The aluminum combustion model is constructed using a burn time expression developed by Beckstead et al. Cold flow testing of the chamber indicates the experimental setup is able to produce the acoustics required to measure the VCDC response.

Original languageEnglish (US)
DOIs
StatePublished - 2000
Event35th Intersociety Energy Conversion Engineering Conference and Exhibit 2000 - Las Vegas, NV, United States
Duration: Jul 24 2000Jul 28 2000

Other

Other35th Intersociety Energy Conversion Engineering Conference and Exhibit 2000
Country/TerritoryUnited States
CityLas Vegas, NV
Period7/24/007/28/00

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology
  • Renewable Energy, Sustainability and the Environment

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