Application of Mixed Time Partitioning Methods to Raise the Efficiency of Solidification Modeling

In this paper we focus on the application of a mixed time partitioning methods to raise efficiency of the solidification kernel in the NuscaS system. We are proposing using a fixed time step in the casting and its integer multiple in other parts of mould because the time step size determines the acc...

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Vydané v:2010 12th International Symposium on Symbolic and Numeric Algorithms for Scientific Computing s. 99 - 103
Hlavní autori: Gawronska, Elzbieta, Sczygiol, Norbert
Médium: Konferenčný príspevok..
Jazyk:English
Vydavateľské údaje: IEEE 01.09.2010
Predmet:
Boundary conditions
Casting
differential equation
Equations
Heating
Mathematical model
mixed time partitioning methods
numerical simulation
Numerical stability
solifification modeling
Stability analysis
ISBN:1424498163, 9781424498161
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Popis
Shrnutí:In this paper we focus on the application of a mixed time partitioning methods to raise efficiency of the solidification kernel in the NuscaS system. We are proposing using a fixed time step in the casting and its integer multiple in other parts of mould because the time step size determines the accuracy of the simulation results. By means of numerical experiments we show that our approach allows for up to about three times performance improvement as compared to the standard approach without loosing precision of results. Moreover, this methods will be extended to 3D numerical simulation in a future work. We notice also that our method can be combined with parallel processing to further improve performance of solidification kernels.
ISBN:1424498163
9781424498161
DOI:10.1109/SYNASC.2010.24