Accession Number:

ADA027576

Title:

A Model for Emission and Scattering of Infrared Radiation from Inhomogeneous Combustion Gases and Particles,

Descriptive Note:

Corporate Author:

GRUMMAN AEROSPACE CORP BETHPAGE N Y RESEARCH DEPT

Personal Author(s):

• Vanderbilt,D.
• Slack,M.

Report Date:

1976-06-01

Pagination or Media Count:

49.0

Abstract:

A model for treating radiant heat transfer in inhomogeneous media containing both gases and anisotropically scattering particles is presented. Absorption and scattering coefficients are calculated for discrete particle sizes using the Dave treatment of Mie scattering. The model incorporates a one dimensional beam approximation and couples the particulate and gaseous heat transfer equations. An existing gaseous infrared radiation computer code has been updated to included particulate scattering, absorption and emission in its calculation of radiant heat transfer from combustion products and exhaust plumes. It is shown that the present model is an improvement over models which merely add independent computations of gaseous and particulate radiation. Author

Descriptors:

• *COMPUTERIZED SIMULATION
• *INFRARED SIGNATURES
• *PARTICLES
• *EXHAUST GASES
• *COMBUSTION PRODUCTS
• HEAT TRANSFER
• COMPUTER PROGRAMS
• MATHEMATICAL MODELS
• EMISSION
• LIGHT SCATTERING
• SCATTERING
• MODELS
• MIE SCATTERING
• ABSORPTION
• INFRARED RADIATION
• EXHAUST PLUMES
• MACHINE CODING
• HOMOGENEITY

Subject Categories:

• Numerical Mathematics
• Computer Programming and Software
• Infrared Detection and Detectors
• Jet and Gas Turbine Engines
• Rocket Engines

Distribution Statement:

APPROVED FOR PUBLIC RELEASE