TY - GEN
T1 - AN ACCELERATION METHODOLOGY BASED ON DISTURBANCE REGION UPDATE METHOD FOR STEADY COMPRESSIBLE FLOWS
AU - Shuyao, Hu
AU - Chongwen, Jiang
AU - Zhenxun, Gao
AU - Chun-Hian, Lee
N1 - Publisher Copyright:
© 2021 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021. All rights reserved.
PY - 2021
Y1 - 2021
N2 - The disturbance region update method (DRUM) provides a framework for accelerating the simulation of compressible flows, solving the governing equations in dynamic computational domains (DCDs). The DCDs merely include disturbed cells with non-convergent solutions, and treats the viscous flows in a dynamic zonal way, to eliminate the worthless computational effort in the conventional global-update solution process as much as possible. In this paper, we propose some improvements on the algorithms of updating DCDs. Numerical test demonstrates that, benefiting from the reduction in the computational effort per iteration and the decrease in the total number of iterations, DRUM could accomplish remarkable convergence speedup for solving steady compressible flows; DRUM can be conjunction with spatial parallelism, capable of achieving a total speedup much higher than the linear speedup of the conventional global-update method.
AB - The disturbance region update method (DRUM) provides a framework for accelerating the simulation of compressible flows, solving the governing equations in dynamic computational domains (DCDs). The DCDs merely include disturbed cells with non-convergent solutions, and treats the viscous flows in a dynamic zonal way, to eliminate the worthless computational effort in the conventional global-update solution process as much as possible. In this paper, we propose some improvements on the algorithms of updating DCDs. Numerical test demonstrates that, benefiting from the reduction in the computational effort per iteration and the decrease in the total number of iterations, DRUM could accomplish remarkable convergence speedup for solving steady compressible flows; DRUM can be conjunction with spatial parallelism, capable of achieving a total speedup much higher than the linear speedup of the conventional global-update method.
KW - Acceleration techniques
KW - Computational fluid dynamics
KW - Dynamic computational methods
KW - Zonal methods
UR - https://www.scopus.com/pages/publications/85124471005
M3 - 会议稿件
AN - SCOPUS:85124471005
T3 - 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021
BT - 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021
PB - International Council of the Aeronautical Sciences
T2 - 32nd Congress of the International Council of the Aeronautical Sciences, ICAS 2021
Y2 - 6 September 2021 through 10 September 2021
ER -