“…Accurate representation of solute transport processes (e.g., dispersion, mixing, and dilution) is important for various porous media‐related applications such as hydrogeology, soil physics, environmental engineering and sciences, water resources management, and petroleum engineering (de Barros et al., 2015; Ershadnia, Hajirezaie, et al., 2021; Ershadnia, Wallace, et al., 2021; Fiori & Dagan, 2000; Fiori, 2001; Jha et al., 2011; Jiménez‐Martínez et al., 2015; Kitanidis and McCarty, 2012). Large‐scale field experiments (e.g., Borden, MADE, Cape Cod) have revealed that spatial heterogeneity in physical and geochemical sediment properties, as well as local‐scale dispersion, are among the primary underlying mechanisms which govern solute transport processes (Anderson & McCray, 2011; Attinger et al., 2004; Bianchi et al., 2011; Dai et al., 2004; Fiori & Dagan, 1999; Freyberg, 1986; Gelhar, 1986; Ritzi & Soltanian, 2015; Salamon et al., 2007; Sudicky & Illman, 2011; Zheng et al., 2011). Heterogeneous aquifer hydraulic conductivity ( K ) results in erratic solute distributions, which increase solute surface area and enhance spreading and mixing (Burr et al., 1994; de Barros et al., 2015; Dentz et al., 2011, 2018; Kitanidis, 1994; Sanchez‐Vila et al., 2006; Werth et al., 2006).…”