Document Type
Article
Language
eng
Publication Date
2014
Publisher
Taylor & Francis
Source Publication
Aerosol Science and Technology
Source ISSN
0278-6826
Abstract
The method of moments with interpolative closure (MOMIC) for soot formation and growth provides a detailed modeling framework maintaining a good balance in generality, accuracy, robustness, and computational efficiency. This study presents several computational issues in the development and implementation of the MOMIC-based soot modeling for direct numerical simulations (DNS). The issues of concern include a wide dynamic range of numbers, choice of normalization, high effective Schmidt number of soot particles, and realizability of the soot particle size distribution function (PSDF). These problems are not unique to DNS, but they are often exacerbated by the high-order numerical schemes used in DNS. Four specific issues are discussed in this article: the treatment of soot diffusion, choice of interpolation scheme for MOMIC, an approach to deal with strongly oxidizing environments, and realizability of the PSDF. General, robust, and stable approaches are sought to address these issues, minimizing the use of ad hoc treatments such as clipping. The solutions proposed and demonstrated here are being applied to generate new physical insight into complex turbulence-chemistry-soot-radiation interactions in turbulent reacting flows using DNS.
Recommended Citation
Roy, Somesh; Arias, P. G.; Lecoustre, Vivien R.; Haworth, Daniel C.; Im, H. G.; and Trouvé, Arnaud, "Development of High Fidelity Soot Aerosol Dynamics Models using Method of Moments with Interpolative Closure" (2014). Mechanical Engineering Faculty Research and Publications. 240.
https://epublications.marquette.edu/mechengin_fac/240
Comments
Accepted version. Aerosol Science and Technology, Vol. 48, No. 4 (2014): 379-391. DOI. © 2014 Taylor & Francis. Used with permission.
S.P. Roy was affiliated with Pennsylvania State University at the time of publication.