Revisiting Yamaguchi-Ichikawa water hammer model

Abstract

Hydraulic systems are susceptible to transient phenomena like water hammer, necessitating accurate analytical models for effective simulation and prediction. This study extensively evaluates the Yamaguchi-Ichikawa model, offering insights into its capabilities and areas for enhancement. Noteworthy is its minimal series terms requirement, particularly advantageous for highly viscous fluid simulations. Mathematical similarities with established models hint at a potential unified analytical framework. However, discrepancies with experimental data, especially at initial stage of water hammer and in pulsation periodicity, highlight limitations, particularly in modeling of complex pressure systems. Despite these challenges, the Yamaguchi-Ichikawa model exhibits promising amplitude damping characteristics, offering potential for parameter estimation advancements, notably in the instantaneous acceleration-based approach. This comprehensive evaluation underscores the Yamaguchi-Ichikawa model's potential in hydraulic system analysis, while also delineating avenues for refinement and further research. Efforts to analytically derive parameters hold promise for enhancing model accuracy and applicability, further advancing hydraulic system understanding and design.