Effect of fin number and position on thermal behavior of natural convection in enclosed cavity using fuzzy controller algorithm

Author

Jain, Abhishek ; Kaminski, Deborah A.

Author_Institution

Dept. of Mech., Aerosp. & Nucl. Eng., Rensselaer Polytech. Inst., Troy, NY

fYear

2007

fDate

1-5 April 2007

Firstpage

516

Lastpage

522

Abstract

Laminar natural convection in an enclosed cavity with differentially heated walls and having fins on the cold wall is investigated. The effect of the number of fins and their position on the cold wall on heat transfer characteristics is analyzed. Governing equations of continuity, momentum and energy are solved using SIMPLER algorithm. A fuzzy controller with pre-defined set of fuzzy rules is implemented as a guiding mechanism for faster convergence. Relaxation factors are adjusted using fuzzy rules which guide the iterative scheme towards convergence in comparatively fewer numbers of iterations. A total of 16 cases with different fin aspect ratios (0.1 and 0.4) and their position on the cold wall are considered for a range of Grashof numbers (10³, 10⁵ and 10⁷).

Keywords

convection; fuzzy control; enclosed cavity; fin number; fuzzy controller; fuzzy rules; heat transfer; laminar natural convection; relaxation factors; thermal behavior; Computational fluid dynamics; Computational intelligence; Computational modeling; Convergence; Equations; Fuzzy control; Fuzzy logic; Fuzzy sets; Heat transfer; Iterative algorithms; Fuzzy logic; SIMPLER; conjugate heat transfer; enclosed cavity; fin;

fLanguage

English

Publisher

ieee

Conference_Titel

Foundations of Computational Intelligence, 2007. FOCI 2007. IEEE Symposium on

Conference_Location

Honolulu, HI

Print_ISBN

1-4244-0703-6

Type

conf

DOI

10.1109/FOCI.2007.371521

Filename

4233955