## Team for Advanced Flow Simulation and Modeling |

For more information: |
## Flow Past the Spillway of the Olmsted DamWe investigate the water flow in the spillway of the Olmsted Dam on the Ohio River. The dam was under the study by the U.S. Army Corps of Engineers for possible modifications of the spillway bed. Several experimental models were constructed with the aim of analyzing the candidate designs for the scour protection of the spillway bed. The geometric model represents a 48 feet wide section of the navigation pass crest and stilling basin, and includes a long upstream channel, the spillway crest, and a set of underwater obstacles designed to dissipate the energy of the flow. The mesh consists of 164,952 space-time nodes and 480,469 tetrahedral space-time elements. The top surface of the mesh is free and allowed to move in the vertical direction. A stabilized mesh surface movement mechanism is employed. In the interior of the domain, the position of the nodes is being updated based on a linear elasticity formulation. The 637,696 flow equations and the 209,008 mesh displacement equations are solved iteratively using the GMRES update technique. The figure below shows the pressure field and the free surface in the final stages of the time-dependent simulation. This problem was computed on a CM-5. The unstructured mesh generator, flow solver, and flow visualization software (based on Ensight) were developed by T*AFSM.
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Incompressible Flow Computations", 2. T.E. Tezduyar, M. Behr and J. Liou, "A New Strategy for
Finite Element Computations Involving Moving Boundaries and
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Numerical Tests", 3. T.E. Tezduyar, M. Behr, S. Mittal and J. Liou, "A New
Strategy for Finite Element Computations Involving Moving Boundaries
and Interfaces--The DSD/ST Procedure: II. Computation of Free-surface
Flows, Two-liquid Flows, and Flows with Drifting Cylinders",
4. T. Tezduyar, "Advanced Flow Simulation and Modeling", 5. T. Tezduyar, "CFD Methods for Three-Dimensional Computation of
Complex Flow Problems", 6. I. Guler, M. Behr and T.E. Tezduyar, "Parallel Finite Element
Computation of Free-Surface Flows", 7. T. Tezduyar and Y. Osawa, "Methods for Parallel Computation of
Complex Flow Problems", |