A penalty finite element analysis with bi-quadratic elements is carried out to investigate the effects of uniform and non-uniform heating of inclined walls on natural convection flows within a isosceles triangular enclosure. Two cases of thermal boundary conditions are considered; case I: two inclined walls are uniformly heated while the bottom wall is cold isothermal and case II: two inclined ...

Complete partitioning wilb boneyoomb-Iike struetuIes bas previously been proposed to reduce heat transfer by natural convection. at the expense of direct oonduction through the Struet\I.fe. in Ihe thin rectangular enclosures used for solar colleclors. 11tis paper presents the results of a sludy of the use of partial ballles for this purpose. 1be heat transfer rate was measured in glycerol using...

Thermal and flow fields due to laminar steady natural convection in a triangular enclosure having thick conducting sidewalls have been investigated numerically. Inclined left right side walls are maintained at isothermal cold temperatures while the bottom wall is hot temperature. Problem has analyzed non-dimensional governing equations solved using finite volume approach employing more nodes fl...

Natural convective laminar flow is numerically investigated in a two-dimensional and square enclosure at various angles of inclination respect to horizontal. Two adjacent walls of the enclosure are insulated and the other two are kept at different temperatures. The influence of Rayleigh number representing the effects due to the differential heating of the enclosure walls as well as the effect ...

In this paper, Lattice Boltzmann Method (LBM) is used to study laminar flow with mixed convection heat transfer inside a two-dimensional inclined lid-driven rectangular cavity with aspect ratio AR = 3. Bottom wall of the cavity is maintained at lower temperature than the top lid, and its vertical walls are assumed insulated. Top lid motion results in fluid motion inside the cavity. Inclination ...