Comparison of four algorithms for solving pressure-velocity linked equations in simulating atrium fire
Authors
Citation
International journal on architectural science, v.4, no.1, 2003, pp. 24-35
Abstract
For algorithms for solving the pressure-velocity linked equation were compared by simulating the pressure distribution in an atrium fire. The four algorithms studied were the SIMPLE, the SIMPLER, the SIMPLEC and the PISO. Four heat release rates of fire in an arbitrary atrium were considered. Different under-relaxation factors for velocity components were assigned. It is found that the flow variables predicted by the four algorithms are the same, though the pressure distributions are quite different. Two sets of predicted pressure were found. The SIMPLE/SIMPLEC/PISO resulted in one set and the SIMPLER resulted in another. Macroscopic parameters useful to the fire industry were also computed.
(1) Introduction
(2) Governing equations
(3) Pressure-velocity linked equation
(4) Numerical experiments
(5) Pressure distribution
(6) Error analysis
(7) Comparison of the four algorithms
(8) Macroscopic parameters
(9) Conclusions
(10) Acknowledgment
(11) References
(12) Appendix A: review of the SIMPLE algorithm
(13) Appendix B: review of the SIMPLER algorithm
(14) Appendix C: review of the SIMPLEC algorithm
(15) Appendix D: review of the PISO algorithm
Description
Notes: Heating
Subject
Type
Article
Format
Date
2003
Language
en