Open AccessCFD Analysis of Airflow Through Prism Obstacles Inside Solar Air Heater Channel
Author(s) -
Lohdy Diana,
Arrad Ghani Safitra,
Djatmiko Ichsani,
Setyo Nugroho
Publication year - 2020
Publication title -
journal of physics. conference series
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.21
H-Index - 85
eISSN - 1742-6596
pISSN - 1742-6588
DOI - 10.1088/1742-6596/1577/1/012038
Subject(s) - airflow , prism , computational fluid dynamics , channel (broadcasting) , marine engineering , geology , mechanics , meteorology , environmental science , aerospace engineering , optics , mechanical engineering , engineering , electrical engineering , physics
This study presents an analysis of airflow through prism obstacles inside a trapezoidal solar air heater channel using a computational fluid dynamics method. The purpose is to now the best configuration of gap ratio (S/H) 0.7, 1, 1.3 for 30° obstacle folded angle. The air is 2.62 m/s and the air temperature is 299 K. The channel wall boundary condition is heat flux with a constant value of 620 W/m 2 is attached alongside the wall of the channel. The equation is Pressure-velocity coupling performed with SIMPLE. Renormalization-group (RNG) k-ε is chosen as a turbulent model. The simulation result presents temperature distribution, airflow vector in the middle plane of a channel. The obstacle can create backflow. It can increase the air temperature in a channel.