TY - BOOK AU - Rao,Prasada AU - Hromadka,Theodore V. AU - Yen,Chung-Cheng TI - A Diffusion Hydrodynamic Model SN - 9781839628191 PB - IntechOpen KW - Science / Mechanics / Hydrodynamics KW - bisacsh KW - Science KW - Electronic books N1 - Access copy available to the general public N2 - The Diffusion Hydrodynamic Model (DHM), as presented in the 1987 USGS publication, was one of the first computational fluid dynamics computational programs based on the groundwater program MODFLOW, which evolved into the control volume modeling approach. Over the following decades, others developed similar computational programs that either used the methodology and approaches presented in the DHM directly or were its extensions that included additional components and capacities. Our goal is to demonstrate that the DHM, which was developed in an age preceding computer graphics/visualization tools, is as robust as any of the popular models that are currently used. We thank the USGS for their approval and permission to use the content from the earlier USGS report UR - https://openresearchlibrary.org/content/47d3a87f-4f61-400a-a2b8-c5633233c43b ER -