Project 071 Predictive Simulation of nvPM Emissions in Aircraft Combustors

Details

• Creators:
  Menon, Suresh ; Karpe, Shubham Basavaraj ; Yazdani, Miad ; Zeppieri, Steve ; Colket, Meredith
• Corporate Creators:
  Georgia Institute of Technology
• Corporate Contributors:
  United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment
• Subject/TRT Terms:
  ASCENT Aviation Fuels Climate Combustion Eddy Currents Monte Carlo Method
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. Center of Excellence for Alternative Jet Fuels and Environment
• Abstract:
  This project aimed to establish a new multiscale framework for predicting soot formation in both canonical and practically relevant sooting flames. A hierarchy of first-principles simulation methods was employed to capture the multiscale physics governing the formation and transport of non-volatile particulate matter (nvPM, commonly referred to as soot). The work specifically targeted several empirical elements that traditionally limit soot modeling fidelity, for example, uncertainties in particle inception models, the roles of key precursor species in nucleation, assumptions regarding particle morphology and their effects on surface growth, sensitivities to particle size distribution, and the use of ad hoc coagulation and coalescence formulations. To address these challenges, the state-of-the-art modeling tools are developed and a systematic coupling of these tools in a multiscale, multi-physics manner is established. Hence, this approach provides insights into establishing new predictive abilities by integrating these capabilities. The final objective of this work demonstrated the capabilities of this approach to modeling the soot physics in realistic gas turbine combustor for which the experiments are being conducted under Federal Aviation Administration (FAA) ASCENT Project 070.
• Format:
  PDF
• Funding:
  13-C-AJFE-GIT-067
• Collection(s):
  Federal Aviation Administration
• Main Document Checksum:
  urn:sha-512:ad1ae87f51394c2d704dc85e7aeafad042715db70a017634fc067fcd90b6425dd619177240740d738adfc425b8243d83f77d3fab4cb6df703d3db99ab8b2e625
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/92401/dot_92401_DS1.pdf
• File Type:
  [PDF - 6.53 MB ]