| PACKAGE ID: | 000154MLTPL03 KIVA4 |
| KWIC TITLE: | A Block-Structured KIVA Program for Engines with Vertical or Canted Valves |
| AUTHORS: | Dr. David Torres, LANL |
| LIMITATION/AUDIENCE CODE: | COPY/UNL |
| COMPLETION DATE: | 04/16/2007 |
| PUBLICATION DATE: | 04/16/2007 |
| DESCRIPTION: | KIVA-4 is the latest version of the series of KIVA codes. While KIVA-4 maintains the full generality of KIVA-3V, it adds the capability of computing with unstructured grids. Unstructured grids can be generated more easily than structured grids for complex geometries. The unstructured grids can be composed of a variety of elements including hexahedra, prisms, pyramids, and tetrahedra.
However the numerical accuracy is less when the grid is not composed of hexahedra. KIVA-4 was developed to work with the many geometries accommodated with KIVA-3V which include 2D axisymmetric, 2D planar, 3D axisymmetric sector geometries, and full 3D geometries. KIVA-4 also features a multicomponent fuel evaporation algorithm. Many of the numerical algorithms in KIVA-3V do generalize nicely to unstructured meshes. However fundamental changes were needed in the solution of the pressure equation and the fluxing of momentum. In addition, KIVA-4 loops over cell faces to compute diffusion terms.
More details can be found in Torres, D.J. and Trujillo, M.F., KIVA-4: An unstructured ALE code for compressible gas flow with sprays, Journal of Computational Physics, 2006, vol. 219, pp. 943-975.
PACKAGE TESTED USING LINUX OPERATING SYSTEM. MAY BE MODIFIED TO RUN USING UNIX OR WINDOWS. |
| PACKAGE CONTENTS: | Media Directory; Software Abstract; Government Use Acknowledgement; Media Includes Source Code, User's Guide, Programmer Documentation, Sample Problem Input Data, Sample Problem Output Data and MakeGen file;/1 CD ROM |
| SOURCE CODE INCLUDED? | Y |
| MEDIA URL: | |
| MEDIA QUANTITY: | 1 |
| COMPUTER: | MLT-PLTFM |
| OPERATING SYSTEMS: | Linux |
| REFERENCES: | Torres, D.J. and Trujillo, M.F., KIVA-4: An unstructured ALE code for compressible gas flow with sprays, Journal of Computational Physics. 219 (2006), 943-975.
Torres, D.J., O'Rourke, P.J. and Amsden, A.A., A discrete multicomponent fuel model, Atomization and Sprays. 13 (2003), 131-172.
Torres, D.J., O'Rourke, P.J. and Amsden, A.A., Efficient multicomponent fuel algorithm, Combust. Theory Modelling. 7 (2003), 67-86. |
| ABSTRACT STATUS: | Release As-Is 04-30-2007. |
| SPONSOR: | DOE/EE |
| RESEARCH ORG: | Los Alamos National Laboratory |
| PACKAGE TYPE: | AS-IS |
| PACKAGE STATUS: | RDY |