Implementation of low speed preconditioning in the splitflow code

Christopher L. Reed; Steve L. Karman; Dale A. Anderson

Implementation of low speed preconditioning in the splitflow code

Christopher L. Reed, Steve L. Karman, Dale A. Anderson

Research output: Contribution to conference › Paper › peer-review

Abstract

The concept of low-speed time-derivative preconditioning is implemented in a unique unstructured CFD code. This production code, known as Splitflow, uses a hybrid Cartesian-prismatic grid system to discretize complex three-dimensional geometries. Low-speed preconditioning allows this code to solve complex problems which include both compressible and incompressible flows such as a V/STOL aircraft in hover mode. The implementation is validated by computing the solutions of a low-speed lifting body and a subsonic jet-in-crossflow. The analysis of a complex V/STOL aircraft configuration in low-speed hover is also demonstrated using the three-dimensional Splitflow code.

Original language	English
Pages	326-340
Number of pages	15
State	Published - 1997
Externally published	Yes
Event	13th Computational Fluid Dynamics Conference, 1997 - Snowmass Village, United States Duration: Jun 29 1997 → Jul 2 1997

Conference

Conference	13th Computational Fluid Dynamics Conference, 1997
Country/Territory	United States
City	Snowmass Village
Period	06/29/97 → 07/2/97

Cite this

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title = "Implementation of low speed preconditioning in the splitflow code",

abstract = "The concept of low-speed time-derivative preconditioning is implemented in a unique unstructured CFD code. This production code, known as Splitflow, uses a hybrid Cartesian-prismatic grid system to discretize complex three-dimensional geometries. Low-speed preconditioning allows this code to solve complex problems which include both compressible and incompressible flows such as a V/STOL aircraft in hover mode. The implementation is validated by computing the solutions of a low-speed lifting body and a subsonic jet-in-crossflow. The analysis of a complex V/STOL aircraft configuration in low-speed hover is also demonstrated using the three-dimensional Splitflow code.",

author = "Reed, {Christopher L.} and Karman, {Steve L.} and Anderson, {Dale A.}",

note = "Publisher Copyright: {\textcopyright} 1997 by Lockheed Martin Corporation. All rights reserved. Published by the American Institute of Aeronautics and Astronautics, Inc.; 13th Computational Fluid Dynamics Conference, 1997 ; Conference date: 29-06-1997 Through 02-07-1997",

year = "1997",

language = "English",

pages = "326--340",

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TY - CONF

T1 - Implementation of low speed preconditioning in the splitflow code

AU - Reed, Christopher L.

AU - Karman, Steve L.

AU - Anderson, Dale A.

PY - 1997

Y1 - 1997

N2 - The concept of low-speed time-derivative preconditioning is implemented in a unique unstructured CFD code. This production code, known as Splitflow, uses a hybrid Cartesian-prismatic grid system to discretize complex three-dimensional geometries. Low-speed preconditioning allows this code to solve complex problems which include both compressible and incompressible flows such as a V/STOL aircraft in hover mode. The implementation is validated by computing the solutions of a low-speed lifting body and a subsonic jet-in-crossflow. The analysis of a complex V/STOL aircraft configuration in low-speed hover is also demonstrated using the three-dimensional Splitflow code.

AB - The concept of low-speed time-derivative preconditioning is implemented in a unique unstructured CFD code. This production code, known as Splitflow, uses a hybrid Cartesian-prismatic grid system to discretize complex three-dimensional geometries. Low-speed preconditioning allows this code to solve complex problems which include both compressible and incompressible flows such as a V/STOL aircraft in hover mode. The implementation is validated by computing the solutions of a low-speed lifting body and a subsonic jet-in-crossflow. The analysis of a complex V/STOL aircraft configuration in low-speed hover is also demonstrated using the three-dimensional Splitflow code.

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M3 - Paper

AN - SCOPUS:84983199930

SP - 326

EP - 340

T2 - 13th Computational Fluid Dynamics Conference, 1997

Y2 - 29 June 1997 through 2 July 1997

ER -

Implementation of low speed preconditioning in the splitflow code

Abstract

Conference

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