TY - JOUR
TI - Numerical assessment of an air-heat exchanger channel with staggered attached rectangular baffles and in-line detached square fins
AU - Rebhi Redha
AU - Ahmad Hijaz
AU - Zhao Yun-Hui
AU - Menni Younes
AU - Lorenzini Giulio
JN - Thermal Science
PY - 2023
VL - 27
IS - 101
SP - 343
EP - 351
PT - Article
AB - The study's main objective is to assess a channel heat exchanger's thermal  and hydraulic characteristics in the presence of turbulent air-flow at a  fixed Reynolds number. Using two distinct versions of the obstacles in terms  of their shape, fix­ation, and arrangement, the baffles and fins are  implanted inside the channel. To convert a conventional flow path into a  wave-shaped one, a first model contains rectangular baffles alternately  distributed throughout the channel surfaces. According to the horizontal  axis of the channel, between the edges of the baffles in the first type, the  second model relates to square and in-line deflectors (fins). On each of the  channel's solid bounds, the boundary criteria are specified. An k-ε  turbulence model was used to build the mathematical model for flow and  energy. As might be predicted, the pressure, velocity, and temperature  fields exhibit the greatest fluctuations in the areas closest to the  obstacles.