IRTG 2057 Board
Seminars for Key Qualifications
Courses from the Graduate Programs
Title: Characterizing Flow Fields at the Drill Bit Tip to Enhance Heat Transfer
Name: Jason Parker
Phone: +1 (540)-514-0420
The starting situation is a basic experimental rig, approximate water mass flow rates, and
hypotheses regarding cooling improvements and potential cavitation.
Our approach is to use high speed videos to track particles near the tip of the drill bit. The
ultimate goal is to use Particle Tracking Velocimetry (PTV), Particle Image Velocimetry (PIV),
or X-ray PIV in order to measure the flow field.
It is possible that as fluid is injected from the drill bit into the cavity between the wall and the
bit, cavitation may occur. This could cause damage to the bit and reduce heat transfer. Our
expectation is that cavitation does not occur, but one goal of the collaboration is to
empirically show that it does not. Our second expected result is that by directly injected fluid
through the drill bit, the heat transfer near the bit tip will improve, and thus the temperature