Modified Cavitation Modeling and Entropy-Based Analysis of Cryogenic Ball Valve Performance
Introduction Cryogenic valves are vital components in the operation of low-temperature fluid systems, particularly those handling liquefied gases such as LNG (liquefied natural gas), LN₂ (liquid nitrogen), and LO₂ (liquid oxygen). These valves ensure the precise control, safety, and reliability of fluid transmission in various industrial and scientific applications. However, under cryogenic conditions, cavitation—caused by local vaporization and subsequent collapse of fluid—poses a significant threat to system integrity. This phenomenon leads to vibration, noise, and serious erosion of valve components, thereby compromising system performance. Understanding the cavitation behavior specific to cryogenic environments is essential for improving valve design and ensuring reliable operation. The present study addresses these challenges by modifying an existing cavitation model to better reflect the thermodynamic effects unique to cryogenic fluids. Development of a Cryogenic Cavitation Model...