Fu, Xin, Xuewen Du, Jun Zou, Hong Ji, Shohei Ryu, and Masami Ochiai. 2007. “CHARACTERISTICS OF FLOW THROUGH THROTTLING VALVE UNDERGOING A STEEP PRESSURE GRADIENT”. International Journal of Fluid Power 8 (1):29-37. https://journals.riverpublishers.com/index.php/IJFP/article/view/545.