Modified. delta. -M scaling results for mie-anisotropic scattering media

Journal Article · Wed Oct 31 23:00:00 EST 1990 · Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States)

DOI:https://doi.org/10.1115/1.2910510· OSTI ID:5416205

Kim, T K; Lee, H S ^[1]

---

1. Univ. of Minnesota, Minneapolis (USA)

A modified {delta} scaling method, which adjusts the {delta}-M scaled phase functions to be always positive, is applied to radiative transfer problems in two-dimensional square enclosures. The scaled anisotropic results are compared with the results obtained from an accurate model of the full anisotropic scattering problems using the S-N discrete ordinates method. The modified {delta}-M anisotropic scaling is shown to improve the isotropic scaled results of a climated incidence problem, but the required number of terms increases as the phase function complexity and the asymmetry factor increase. For the diffuse incidence problems, even a low-order modified {delta}-m phase function significantly improves the accuracy of scaled solutions over the isotropic scaling. Significant savings in the computer times are observed when the modified {delta}-M method is applied.

• OSTI ID: 5416205
• Journal Information: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States), Journal Name: Journal of Heat Transfer (Transcations of the ASME (American Society of Mechanical Engineers), Series C); (United States) Vol. 112:4; ISSN 0022-1481; ISSN JHTRA
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
420400* -- Engineering-- Heat Transfer & Fluid Flow
BOX MODELS
ENERGY TRANSFER
HEAT TRANSFER
MATHEMATICAL MODELS
RADIANT HEAT TRANSFER
SCALING LAWS
TWO-DIMENSIONAL CALCULATIONS