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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.
Preface
Chapter 1 Diffusion Hydrodynamic Model Theoretical Development
Chapter 2 Verification of Diffusion Hydrodynamic Model
Chapter 3 Program Description of the Diffusion Hydrodynamic Model
Chapter 4 Applications of Diffusion Hydrodynamic Model
Chapter 5 Reduction of the Diffusion Hydrodynamic Model to Kinematic Routing
Chapter 6 Comparison of DHM Results for One- and Two-Dimensional Flows with Experimental and Numerical Data