Bu çaly?mada ba?langyçta kapaly kübik hacim olan ön yüzeyinin ortama açylmasyyla kübik bo?luk haline gelen hacimde, arka yüzeyinden so?utma synyr ?artynda giri? yüzeyine engellerin konulmasy ve giri? yüzeyinin tamamen açyk olmasy halinde, laminer durumda do?al ta?ynym teorik olarak incelenmi?tir. Sayysal sonuçlar Fluent 6.3 paket program kullanylarak çözülmü? ve birbiriyle kyyaslanmy?tyr. Çaly?mada akym fonksiyonu, sycaklyk de?i?imi ve hyz vektörleri grafikleri elde edilmi?tir. Ayryca Nusselt sayysynyn zamana ba?ly de?i?imi elde edilmi?tir.

In this study, initially off the cubic volume of the front surface opening to the environment in to a cubic space in the volume of the rear surface of the cooling boundary conditions input to the surface to be obstacles and the access level to be fully explained if, in case of natural laminar convection theoretically investigated. Numerical results Fluent 6.3 package program using the dissolved and with each other compared are. Study, current function, and the velocity vector graph of temperature changes were obtained. In addition, depending on the time difference of Nusselt number were obtained.