We developed the new method for predicting a region of compressive residual stress on the weld surface after water jet peeing (WJP), which is a preventive maintenance technology for nuclear power plants. A cavitating jet is impinged on the weld surfaces of structures in a nuclear reactor. Bubble collapse impact causes plastic deformation of the weld surface, and changes the residual stress from tensile to compressive. Compressive residual stress prevents the occurrence of stress corrosion cracking (SCC) on the weld surface. A cavitating jet vertically injected into a submerged flat plate was investigated. Tensile stress was introduced onto the surface of the stainless steel plate by grinding before WJP in the experiment. We numerically simulated impulsive bubble pressure that varied by microseconds in the cavitating jet with the “bubble flow model”. The bubble flow model simulates the abrupt time-variations in the radius and inner pressure of bubbles based on the Rayleigh-Plesset equation in a cavitating flow. The cavitation collapse energy was estimated based on the bubble pressure. The cavitation collapse energy was compared with the measured compressive residual stress on the flat plate after WJP. The radial range of the compressive residual stress from the jet center axis is one of the most important measures of performance of WJP. The radial range of the cavitation collapse energy corresponded to that of compressive residual stress with a prediction error of +/− 20% under different conditions of jet velocity and the distance between the jet nozzle and plate surface. The results confirmed that the method we developed for predicting the region of compressive residual stress after WJP was valid.
Skip Nav Destination
ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels
August 1–5, 2010
Montreal, Quebec, Canada
Conference Sponsors:
- Fluids Engineering Division
ISBN:
978-0-7918-4948-4
PROCEEDINGS PAPER
Prediction of Residual Stress Improvement by Water Jet Peening Using Cavitating Jet Simulation With Bubble Flow Model
Masashi Fukaya,
Masashi Fukaya
Hitachi, Ltd., Hitachinaka, Ibaraki, Japan
Search for other works by this author on:
Ren Morinaka,
Ren Morinaka
Hitachi-GE Nuclear Energy, Ltd., Hitachi, Ibaraki, Japan
Search for other works by this author on:
Noboru Saitou,
Noboru Saitou
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Search for other works by this author on:
Hisamitsu Hatou,
Hisamitsu Hatou
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Search for other works by this author on:
Yoshiaki Tamura,
Yoshiaki Tamura
Toyo University, Kawagoe, Saitama, Japan
Search for other works by this author on:
Yoichiro Matsumoto
Yoichiro Matsumoto
University of Tokyo, Tokyo, Japan
Search for other works by this author on:
Masashi Fukaya
Hitachi, Ltd., Hitachinaka, Ibaraki, Japan
Ren Morinaka
Hitachi-GE Nuclear Energy, Ltd., Hitachi, Ibaraki, Japan
Noboru Saitou
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Hisamitsu Hatou
Hitachi, Ltd., Hitachi, Ibaraki, Japan
Yoshiaki Tamura
Toyo University, Kawagoe, Saitama, Japan
Yoichiro Matsumoto
University of Tokyo, Tokyo, Japan
Paper No:
FEDSM-ICNMM2010-30419, pp. 1603-1609; 7 pages
Published Online:
March 1, 2011
Citation
Fukaya, M, Morinaka, R, Saitou, N, Hatou, H, Tamura, Y, & Matsumoto, Y. "Prediction of Residual Stress Improvement by Water Jet Peening Using Cavitating Jet Simulation With Bubble Flow Model." Proceedings of the ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting collocated with 8th International Conference on Nanochannels, Microchannels, and Minichannels. ASME 2010 3rd Joint US-European Fluids Engineering Summer Meeting: Volume 1, Symposia – Parts A, B, and C. Montreal, Quebec, Canada. August 1–5, 2010. pp. 1603-1609. ASME. https://doi.org/10.1115/FEDSM-ICNMM2010-30419
Download citation file:
12
Views
Related Proceedings Papers
Related Articles
Direct Numerical Simulation of Bubbly Flows and Application to Cavitation Mitigation
J. Fluids Eng (May,2007)
Steady-State Cavitating Nozzle Flows With Nucleation
J. Fluids Eng (July,2005)
Two-Dimensional Simulation of the Collapse of Vapor Bubbles Near a Wall
J. Fluids Eng (September,2008)
Related Chapters
Development of Nuclear Boiler and Pressure Vessels in Taiwan
Companion Guide to the ASME Boiler and Pressure Vessel Code, Volume 3, Third Edition
Experimental Investigation of Ventilated Supercavitation Under Unsteady Conditions
Proceedings of the 10th International Symposium on Cavitation (CAV2018)
Cavitating Structures at Inception in Turbulent Shear Flow
Proceedings of the 10th International Symposium on Cavitation (CAV2018)