Design and flow field characterization of safety valves based on the Laval principleLisong Wang, Zhuozhuo Qin, Hongguang Qi, Zengcheng Wang, Wenrui Jiang, Jiao Xu, Dameng Li and Xin JinMechanics & Industry, 26 (2025) 38DOI: https://doi.org/10.1051/meca/2025033