Extending the method of moments for bimodal soot particle size distributions

Michael Edward Mueller, G. Blanquart, H. Pitsch

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this work, an extension of the Method of Moments with Interpolative Closure (MOMIC) is presented. In many flames, the soot Particle Size Distribution Function (PSDF) is composed of both small spherical particles and large aggregates. An appropriate respresentation of the bimodality of the PSDF is required to accurately predict soot volume fraction, number density, and aggregate properties. It will be shown that, unlike other methods such as Direct Simulation Monte Carlo (DSMC), MOMIC does not properly account for small soot particles in these flames. In this extension, an additional transport equation is solved to account for the influence of the small soot particles. The source terms for this equation are derived in the same manner as for the Direct Quadrature Method of Moments (DQMOM). With the extension, MOMIC is shown to predict soot volume and number density very accurately compared to DSMC. In addition, aggregate properties such as the diameter of the primary particles and the size of the aggregates are better predicted. The extended method is also shown to accurately predict experimental measurements.

Original languageEnglish (US)
Title of host publicationWestern States Section/Combustion Institute Spring Meeting 2008
PublisherWestern States Section/Combustion Institute
Pages564-575
Number of pages12
ISBN (Electronic)9781605609874
StatePublished - Jan 1 2008
EventWestern States Section/Combustion Institute Spring Meeting 2008 - Los Angeles, United States
Duration: Mar 17 2008Mar 18 2008

Publication series

NameWestern States Section/Combustion Institute Spring Meeting 2008

Other

OtherWestern States Section/Combustion Institute Spring Meeting 2008
CountryUnited States
CityLos Angeles
Period3/17/083/18/08

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry

Fingerprint Dive into the research topics of 'Extending the method of moments for bimodal soot particle size distributions'. Together they form a unique fingerprint.

  • Cite this

    Mueller, M. E., Blanquart, G., & Pitsch, H. (2008). Extending the method of moments for bimodal soot particle size distributions. In Western States Section/Combustion Institute Spring Meeting 2008 (pp. 564-575). (Western States Section/Combustion Institute Spring Meeting 2008). Western States Section/Combustion Institute.