SOME PRACTICAL EXAMPLES OF CAVITATION EROSION AND THEIR PREVENTION

If the intensity of erosion is found to be around 0.1 watt/sq.m. or less, then one of the following methods of protection should be effective: substitution of a more resistant material, either for the entire component or at critical areas in the form of either inlays or overlays; use of elastomeric coatings; cathodic protection; or air injection. In the intermediate intensity range from about 0.1 to 1 watt/sq.m., it may be possible, in addition to one or more of the above, to sufficiently reduce the rate of damage by imposing operational limitations on velocity, power, or pumping capacity. In many cases it has been found that the intensity of erosion is proportional to the velocity raised to an exponent of six or greater. Intensities of erosion above 1 watt/sq.m. will ususally require major design changes.

• Supplemental Notes:
  • Presented at a meeting, Boulder, Colorado, Oct. 31-Nov. 2, 1973.
• Corporate Authors:

  National Bureau of Standards

  Connecticut Avenue at Van Ness Street, NW
  Washington, DC  United States  20008
• Authors:
  • Conn, A F
• Publication Date: 1974

Media Info

• Features: References;
• Pagination: p. 39-44

Subject/Index Terms

• TRT Terms: Cathodic protection; Cavitation (Mechanics); Cavitation erosion; Erosion
• Old TRIS Terms: Erosion damage
• Subject Areas: Geotechnology; Marine Transportation;

Filing Info

• Accession Number: 00057772
• Record Type: Publication
• Source Agency: Engineering Index
• Report/Paper Numbers: Special Publ. #394
• Files: TRIS
• Created Date: Oct 22 1974 12:00AM