CFD Numerical Investigation of a New Solar Flat Air-Collector Having Different Obstacles with Various Configurations and Arrangements

Table 2

Geometrical characteristics of the baffles.

Geometric shape of the obstacle	Total obstacle area	Geometric shape of the attack face exposed directly to the air flow	Surface of the leading face exposed directly to the air flow
Spherical	1256.64^2 mm	½ of a sphere	628.32^2 mm
Cubic	2400^2 mm	A square	400^2 mm
Cylindrical	1884.95^2 mm	½ of the lateral surface	314.2^2 mm
Pyramidal	1458.3^2 mm	A triangle	264.57^2 mm