Aiaa 2002-3346 The Current Status Of Unsteady Cfd Approaches For Aerodynamic (2002)
Mark H. Carpenter, Bart A. Singer, Nail Yamaleev, Veer N. Vatsa, Sally A. Viken, Harold L. Atkins
An overview of the current status of time dependent algorithms is presented. Special attention is given to algorithms used to predict #uid actuator #ows, as well as other active and passive#ow...
Aiaa 2002-3346 The Current Status Of Unsteady Cfd Approaches For Aerodynamic (2002)
Mark H. Carpenter, Bart A. Singer, Nail Yamaleev, Veer N. Vatsa, Sally A. Viken, Harold L. Atkins
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...
Opportunities for Breakthroughs in (2002)
Natalia Alex, Stephen J. Alter, Harold L. Atkins, Kim S. Bey, Karen L. Bibb, Robert T, ...
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...
Opportunities for Breakthroughs in (2002)
Natalia Alex, Stephen J. Alter, Harold L. Atkins, Kim S. Bey, Karen L. Bibb, Robert T, ...
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...
National Aeronautics and (2002)
Harold L. Atkins, Fang Q. Hu, L. Atkins
We present a detailed study of spatially propagating waves in a discontinuous Galerkin scheme applied to a system of linear hyperbolic equations. We start with an eigensolution analysis of the...
An Application Of The Quadrature-Free Discontinuous Galerkin Method (1999)
David P. Lockard, Harold L. Atkins
This paper describes the application of the quadrature-free discontinuous Galerkin method to a two-dimensional shear layer problem. First, a brief description of the method is given. Next, the...
An Application Of The Quadrature-Free Discontinuous Galerkin Method (1999)
David P. Lockard, Harold L. Atkins
This paper describes the application of the quadrature-free discontinuous Galerkin method to a two-dimensional shear layer problem. First, a brief description of the method is given. Next, the...
A method for the prediction of acoustic scatter from complex geometries is presented. The discontinuous Galerkin method provides a framework for the development of a high-order method using...
Harold L. Atkins, David P. Lockard
A method for the prediction of acoustic scatter from complex geometries is presented. The discontinuous Galerkin method provides a framework for the development of a high-order method using...
Efficient Implementations of the Quadrature-Free Discontinuous Galerkin Method (1999)
David P. Lockard, Harold L. Atkins
The efficiency of the quadrature-free form of the discontinuous Galerkin method in two dimensions, and briefly in three dimensions, is examined. Most of the work for constant-coefficient, linear...
David P. Lockard, Harold L. Atkins
The e#ciency of the quadrature-free form of the discontinuous Galerkin method in two dimensions, and brie#y in three dimensions, is examined. Most of the work for constant-coe#cient, linear problems...
The investigation of renal disease using radionuclides
Atkins, Harold L., Freeman, Leonard M.
The use of radioactive labels for tracers is an important part of the investigation of renal disease. These techniques seldom replace, but often complement radiographic techniques. Generally, the...