Accurate three-term approximation of the anguk distribution of the radiation intensity
Other Title(s)
علاقة تقريبية دقيقة ذات ثلاثة حدود لإيجاد توزيع شدة الإشعاع الزاوي
Author
al-Rabghi, Umar Muhammad Ali Ashtiyan
Source
Journal of King Abdulaziz University : Engineering Sciences
Issue
Vol. 7, Issue 1 (31 Dec. 1995), pp.29-40, 12 p.
Publisher
King Abdulaziz University Scientific Publishing Center
Publication Date
1995-12-31
Country of Publication
Saudi Arabia
No. of Pages
12
Main Subjects
Abstract EN
A very accurate approximation for the exponential integral E2 ( k ) was achieved by approximating the thermal radiation intensity by the first six terms of Legendre polynomial.
The six constants in the three- 3 term expression for E2 ( k ) = V ai e h< * through algebraic manipu- i = i lations were found.
Unlike curve fitting approximations for E2 ( k ), the present three-term approximation gives accurate values for all optical thicknesses.
For the sake of testing the new developed approximation, radiative equilibrium for planar participating gray media is considered.
The radiative heat flux and the temperature distribution are compared with P-1 and P-3 method results.
Using the developed approximation for attacking radiative heat transfer in nongray medium is illustrated.
American Psychological Association (APA)
al-Rabghi, Umar Muhammad Ali Ashtiyan. 1995. Accurate three-term approximation of the anguk distribution of the radiation intensity. Journal of King Abdulaziz University : Engineering Sciences،Vol. 7, no. 1, pp.29-40.
https://search.emarefa.net/detail/BIM-396016
Modern Language Association (MLA)
al-Rabghi, Umar Muhammad Ali Ashtiyan. Accurate three-term approximation of the anguk distribution of the radiation intensity. Journal of King Abdulaziz University : Engineering Sciences Vol. 7, no. 1 (1995), pp.29-40.
https://search.emarefa.net/detail/BIM-396016
American Medical Association (AMA)
al-Rabghi, Umar Muhammad Ali Ashtiyan. Accurate three-term approximation of the anguk distribution of the radiation intensity. Journal of King Abdulaziz University : Engineering Sciences. 1995. Vol. 7, no. 1, pp.29-40.
https://search.emarefa.net/detail/BIM-396016
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references : p. 38-39
Record ID
BIM-396016