Numerical simulations of mounding and submerging flows of shear-thinning jets impinging in a container

► Liquid jets filling a container can exhibit many interfacial flow shapes. ► Three common meniscus shapes are seen: mounding, ideal filling, and entraining. ► We use FEM simulations to identify the dimensionless parameters for ideal filling. ► Scaling analysis shows that the key physics occur where the jet impacts the pool. ► Ideal filling is found to occur at a critical Reynolds number.