عنوان المقالة:الحمل القسري في انبوب دائري مائل مع زعانف Numerical Simulation of Forced Convective Flow and Heat Transfer in Gravitationally Inclined Circular Pipes with Equi-Spaced Internal Fins
I.K. Adegun , A. EL-Suleiman , Ahmed Kadhim Hussein
Abstract
الحمل القسري في انبوب دائري مائل مع زعانف
Abstract
The paper investigated forced convective fluid flow and heat transfer in gravitationally oriented circular ducts with
equi-spaced internal longitudinal fins for the purpose of augmenting heat transfer in heat exchangers of circular
cross-section. Navier–Stokes equation of motion and energy transport equation were adopted as the governing
equations for the fluid flowing in the geometry. The governing equations were non-dimensionalized using certain
defined transformation parameters. A computational algorithm was developed based on the finite difference scheme
for the normalized governing equations. A Quick-BASIC program was developed for the implementation of the
scheme. The computed results show that between 00-150 pipe inclinations, there is a rapid increase in heat transfer
enhancement which slowly increases towards 750 inclination and remains almost a plateau up to the vertical position
of the pipe. It was discovered that although increased fin height above H = 0.2 increases the heat transfer surface
area: parameters of fluid volume and flow velocity are adversely affected and therefore, any protrusion beyond H =
0.2 is a waste of material and resources
الاستاذ الدكتور احمد كاظم حسين | Prof.Dr. Ahmed Kadhim Hussein | 5666