Feasibility study of tuned-resonator, pulsating cavitating water jet for deep-hole drilling

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Description

This study presents the advantages of pulsing a submerged jet to increase its erosion capability (particularly as caused by cavitation) in augmenting deep-hole drill bits. Various methods of accomplishing the pulsation are presented and discussed. The most attractive systems uncovered are acoustic oscillators which passively accomplish pulsations in the flow at frequencies corresponding to a Strouhal number in the range of 0.2 to 1.0. Such passive oscillators are assessed to be feasible candidates for development into practical deep hole drill bit systems and a long range plan for this research and development is presented and discussed.

Physical Description

Pages: 142

Creation Information

Johnson, V.E. Jr.; Lindenmuth, W.T.; Conn, A.F. & Frederick, G.S. August 1, 1981.

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Description

This study presents the advantages of pulsing a submerged jet to increase its erosion capability (particularly as caused by cavitation) in augmenting deep-hole drill bits. Various methods of accomplishing the pulsation are presented and discussed. The most attractive systems uncovered are acoustic oscillators which passively accomplish pulsations in the flow at frequencies corresponding to a Strouhal number in the range of 0.2 to 1.0. Such passive oscillators are assessed to be feasible candidates for development into practical deep hole drill bit systems and a long range plan for this research and development is presented and discussed.

Physical Description

Pages: 142

Notes

NTIS, PC A07/MF A01.

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  • Other: DE81031924
  • Report No.: SAND-81-7126
  • Grant Number: AC04-76DP00789
  • DOI: 10.2172/6266875 | External Link
  • Office of Scientific & Technical Information Report Number: 6266875
  • Archival Resource Key: ark:/67531/metadc1113176

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • August 1, 1981

Added to The UNT Digital Library

  • Feb. 22, 2018, 7:45 p.m.

Description Last Updated

  • March 23, 2018, 4:02 p.m.

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Johnson, V.E. Jr.; Lindenmuth, W.T.; Conn, A.F. & Frederick, G.S. Feasibility study of tuned-resonator, pulsating cavitating water jet for deep-hole drilling, report, August 1, 1981; United States. (digital.library.unt.edu/ark:/67531/metadc1113176/: accessed November 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.