TY - GENERIC DO - 10.20944/preprints201905.0181.v1 UR - http://dx.doi.org/10.20944/preprints201905.0181.v1 TI - A Study on the Effect of the Outer Ring of Annular Cooling Fan on the Aerodynamic Performance T2 - Preprints AU - Shu, Hengtao AU - Yin, Zhihong AU - Shangguan, Wenbin AU - Ahmed, Waizuddin PY - 2019 DA - 2019/05/15 PB - Preprints