Experimental and Numerical Analysis of Flow Behavior for Reverse Circulation Drill Bit with Inserted Swirl Vanes

Table 1

Structural parameters of drill bit with a vane swirler.

, mm	, mm	, mm	, mm	, mm	, mm	, mm	, mm	, mm	, mm
90	33	33	38	35.5	303	210	5	10	10