CFD Seminar: Improvements to Second-Order CFD Methods, New Third-Order Schemes, and Extensions to Higher-Order
Speaker: Dr. Aaron Katz
Abstract: For decades, second-order methods have dominated CFD codes in industry and government. While enormous progress has been made for certain applications, the shortcomings of these methods for many vortex-dominated and turbulent flows are now widely recognized. High-order unstructured grid methods may overcome many of these shortcomings. This talk addresses three main topics: (1) Improvements to conventional second-order methods, (2) New third-order schemes, and (3) Extensions of these ideas to fourth and higher orders. Specific topics include mesh quality studies, non-planar face treatment, multigrid techniques, and truncation error-cancelling schemes. A goal of this research is to reduce the upfront costs and complexity required to transition from second-order to high-order unstructured grid methods.
Biography: Dr. Katz is currently an assistant professor of Mechanical and Aerospace Engineering at Utah State University in Logan, UT. His research interests include aspects of Computational Fluid Dynamics algorithms, including mesh quality effects, discretization error, high-order methods, meshless methods, and multigrid techniques. Applications of interest include rotorcraft aerodynamics and nuclear energy. Before his current position, Dr. Katz was a post-doctoral researcher with the Department of Defense CREATE program at Ames Research Center in Moffett Field, CA, investigating strand grid methods for rotorcraft CFD applications. Prior to this, Dr. Katz received his PhD from Stanford University under the direction of Professor Antony Jameson developing meshless CFD algorithms. He was supported in his graduate studies by a National Defense Science and Engineering Graduate (NDSEG) Fellowship administered through the Department of Defense High Performance Computing Modernization Program
Additional information, including the webcast link, can be found at the NIA CFD Seminar website,
which is temporarily located at