id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
asir-55407	Chen, Jingchao; Cao, Hongyu; Cao, Pinlu; Cao, Jine	Research on the Flow Field of the RC600 Down-the-Hole Hammer Drill Bit under Varied Bottom Shapes	2024	13	.pdf	application/pdf	4610	205	45	These parameters provide a quantitative basis for assessing the operational efficiency and effectiveness of reverse circulation drill bits. 3. Numerical Simulation Results and Analysis This study conducted two-phase flow simulations under identical working conditions for models with different drill bit bottom structures.	cache/asir-55407.pdf	txt/asir-55407.txt