Distributed combustion response function modeling and measurement

E. H. Cardiff, M. M. Micci

Research output: Contribution to conferencePaper

5 Citations (Scopus)

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)
StatePublished - Jan 1 2000
Event36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000 - Huntsville, AL, United States
Duration: Jul 16 2000Jul 19 2000

Other

Other36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000
CountryUnited States
CityHuntsville, AL
Period7/16/007/19/00

Fingerprint

combustion
acoustics
Acoustics
Magnetic flowmeters
modeling
chambers
flowmeters
flowmeter
aluminum
Aluminum
solid propellants
Solid propellants
Acoustic wave velocity
combustion chambers
Combustion chambers
Rockets
rockets
acoustic velocity
acoustic wave
nozzles

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

Cite this

Cardiff, E. H., & Micci, M. M. (2000). Distributed combustion response function modeling and measurement. Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States.
Cardiff, E. H. ; Micci, M. M. / Distributed combustion response function modeling and measurement. Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States.
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Cardiff, EH & Micci, MM 2000, 'Distributed combustion response function modeling and measurement' Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States, 7/16/00 - 7/19/00, .

Distributed combustion response function modeling and measurement. / Cardiff, E. H.; Micci, M. M.

2000. Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States.

Research output: Contribution to conferencePaper

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AU - Micci, M. M.

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N2 - 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.

AB - 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.

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Cardiff EH, Micci MM. Distributed combustion response function modeling and measurement. 2000. Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States.