Showing papers by "Mark H. Carpenter published in 2002"
TL;DR: It is concluded that reliable integration is most efficiently provided by fourth-order Runge–Kutta methods for this problem where order reduction is not observed.
193 citations
TL;DR: The accuracy of two grid adaptation strategies, grid redistribution and local grid refinement, is examined by solving the 2-D Euler equations for the supersonic steady flow around a cylinder and a new grid adaptation criterion for captured shocks is proposed.
25 citations
01 Jun 2002
TL;DR: Opportunities for breakthroughs in the large-scale computational simulation and design of aerospace vehicles are presented and Computational fluid dynamics tools to be used within multidisciplinary analysis and design methods are emphasized.
Abstract: Opportunities for breakthroughs in the large-scale computational simulation and design of aerospace vehicles are presented. Computational fluid dynamics tools to be used within multidisciplinary analysis and design methods are emphasized. The opportunities stem from speedups and robustness improvements in the underlying unit operations associated with simulation (geometry modeling, grid generation, physical modeling, analysis, etc.). Further, an improved programming environment can synergistically integrate these unit operations to leverage the gains. The speedups result from reducing the problem setup time through geometry modeling and grid generation operations, and reducing the solution time through the operation counts associated with solving the discretized equations to a sufficient accuracy. The opportunities are addressed only at a general level here, but an extensive list of references containing further details is included. The opportunities discussed are being addressed through the Fast Adaptive Aerospace Tools (FAAST) element of the Advanced Systems Concept to Test (ASCoT) and the third Generation Reusable Launch Vehicles (RLV) projects at NASA Langley Research Center. The overall goal is to enable greater inroads into the design process with large-scale simulations.
21 citations
01 Jan 2002
TL;DR: An overview of the current status of time dependent algorithms is presented in this paper, with special attention given to algorithms used to predict fluid actuator flows, as well as other active and passive flow control devices.
Abstract: An overview of the current status of time dependent algorithms is presented. Special attention is given to algorithms used to predict fluid actuator flows, as well as other active and passive flow control devices. Capabilities for the next decade are predicted, and principal impediments to the progress of time-dependent algorithms are identified.
15 citations
01 Jan 2002
TL;DR: A numerical study on the benefit of high order methods and computations of solutions governed by the Euler equations.
Abstract: A numerical study on the benefit of high order methods is performed. Numerical computations of solutions governed by the Euler equations are performed. The propagation of a vortex convected through ...
1 citations