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Conference Spotlight
Nuclear Energy Conference & Expo (NECX)
September 8–11, 2025
Atlanta, GA|Atlanta Marriott Marquis
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The Standards Committee is responsible for the development and maintenance of voluntary consensus standards that address the design, analysis, and operation of components, systems, and facilities related to the application of nuclear science and technology. Find out What’s New, check out the Standards Store, or Get Involved today!
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Remembering ANS member Gil Brown
Brown
The nuclear community is mourning the loss of Gilbert Brown, who passed away on July 11 at the age of 77 following a battle with cancer.
Brown, an American Nuclear Society Fellow and an ANS member for nearly 50 years, joined the faculty at Lowell Technological Institute—now the University of Massachusetts–Lowell—in 1973 and remained there for the rest of his career. He eventually became director of the UMass Lowell nuclear engineering program. After his retirement, he remained an emeritus professor at the university.
Sukesh Aghara, chair of the Nuclear Engineering Department Heads Organization, noted in an email to NEDHO members and others that “Gil was a relentless advocate for nuclear energy and a deeply respected member of our professional community. He was also a kind and generous friend—and one of the reasons I ended up at UMass Lowell. He served the university with great dedication. . . . Within NEDHO, Gil was a steady presence and served for many years as our treasurer. His contributions to nuclear engineering education and to this community will be dearly missed.”
Yu Jiang, Genshan Jiang, Xinlu Liu, Jianhao Sun
Nuclear Science and Engineering | Volume 199 | Number 9 | September 2025 | Pages 1458-1472
Research Article | doi.org/10.1080/00295639.2025.2462896
Articles are hosted by Taylor and Francis Online.
The leakage jet impact effect of steam generator heat exchanger piping causes the vibration response of adjacent piping and secondary sound radiation. This study establishes a three-dimensional numerical calculation model of a leakage jet impacting the pipe wall and studies in depth the action mechanism of the leakage jet on the adjacent pipe wall. It obtains the vibration characteristics of the pipe wall caused by the impact of the leakage jet. Calculations show that the leakage jet excites a complex flow field on the surface of the adjacent pipe wall, generating dynamic pressure loads and shear stresses. Dynamic pressure loads generate significant negative pressure wave signals on adjacent pipe walls, which in turn trigger pipe wall vibrations. With an increase in the leakage hole diameter and internal pressure, the dynamic load on the pipe wall increases significantly, leading to obvious changes in the vibration characteristics, revealing the influence law of the leakage jet on the dynamic response of the pipe wall.
