Low-Head Energy Conversion: A Conceptual Design and Laboratory Investigation of a Microtubular Hydro Propeller

Table 2

Comparisons between BMC and CFD for the tip and hub angles.

Methodology
Characteristic parameters	BMC		CFD
	𝐷=100mm	𝐷=200mm	𝐷=100mm	𝐷=200mm
	𝑁sqt=80rpm		𝑁sqt=77rpm
Inlet hub angle (α 1) (°)	41	46	30
Outlet hub angle (α 2) (°)	17	11	30
Inlet tip angle (α 1) (°)	23	24	25
Outlet tip angle (α 2) (°)	16	14	25
Power (W)	4.7	9967	4.2	9869