Research on Numerical Simulation and Structural Optimization of Dual-Throat Venturi Fertilizer InjectorsYinkang Xu, Dongfeng Li, Ruiquan Chen, Jie Ding, Tian Jin, Qing Wang and Tingting FuE3S Web Conf., 615 (2025) 01004DOI: https://doi.org/10.1051/e3sconf/202561501004