Keynote Speaker:
Mark Shephard, Rensselaer Polytechnic Institute
Biography: Mark S. Shephard is the Samuel A. and Elisabeth C. Johnson, Jr. Professor of Engineering, and the director of the Scientific Computation Research Center at Rensselaer Polytechnic Institute. He holds joint appointments in the departments of Mechanical, Aerospace and Nuclear Engineering; Civil and Environmental Engineering; and Computer Science. Dr. Shephard has published over 250 papers. He is a fellow in and the past President of the US Association for Computational Mechanics, a fellow and member of the General Council of the International Association for Computational Mechanics, a fellow of ASME and an Associate Fellow of AIAA. He is the editor of Engineering with Computers and on the editorial board of six computational mechanics journals. He is a co-founder of Simmetrix Inc., a company dedicated to the technologies that enable simulation-based engineering.

Mesh Control in the Adaptive Simulation of Cardiovascular Flows
Mark S. Shephard, Onkar Sahni and Kenneth E. Jansen
Scientific Computation Research Center, Rensselaer Polytechnic Institute

In recent years, the relationship between hemodynamic factors and arterial diseases has attracted careful evaluation of arterial blood flow and wall shear stress patterns. A central goal of these efforts is to support the ability to obtain patient-specific anatomic and physiological information from imaging techniques and to perform accurate blood flow simulations to predict the effectiveness of alternative surgical procedures. Stanford, Rensselaer and Simmetrix have been working to provide the tools needed to support these activities (https://simtk.org/home/simvascular). This presentation will focus on the development and application of the adaptive mesh control procedures developed to support the adaptive simulation of meshes with millions of elements solved on massively parallel computers.  These adaptive procedure starts with an initial boundary layer mesh and adapt it to match the anisotropic mesh size field defined by directional correction indicators. The local mesh modification operations, are performed such that the structure of the boundary layer mesh is maintained. The results to be presented will demonstrate the importance of properly adapted meshes to effectively determine critical factors such as wall shear stresses and the location of recirculation regions that can arise during the cardiac cycle at diseased locations in the arteries. The results will also show that even with well-controlled adapted meshes, it is necessary to employ meshes of 10’s of millions of elements. 

Invited Speakers

Banquet Speaker: Scott Eberhardt
Biography: Scott Eberhardt spent twenty years as a Professor of Aeronautics and Astronautics at the University of Washington, before joining Boeing in 2006.  In 2004, Scott was a consultant with the Museum of Flight, assisting researchers and writers in finding and documenting personal courage stories.  As an aviation history buff and engineer, Scott began researching the engineering changes that occurred during WWI.  

Abstract: Fighter Performance and Technology in The First World War
During the first one hundred years of flight great advances were made in fighter performance.  However, fighter tactics developed in the early years of WWI are still in use today.  A retrospective analysis of Seattle’s Museum of Flight collection of WWI fighters will show why certain aircraft were successful, where others weren’t.    Climb and turn performance of these airplanes are compared and the tactics they fostered will be discussed.  Speed, handling and stall speeds will be discussed in relation to the utility of these aircraft.

IMR Home Page | Sandia National Laboratories