Two- and three-dimensional natural and mixed convection simulation using modular zonal models in buildings
| Autor: | F.C. Winkelmann, Etienne Wurtz, Jean-Michel Nataf |
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| Rok vydání: | 1999 |
| Předmět: |
Fluid Flow and Transfer Processes
business.industry Mechanical Engineering Hydrostatic pressure Thermodynamics Mechanics Modular design Computational fluid dynamics Condensed Matter Physics Grid Power law Nonlinear system Combined forced and natural convection Partition (number theory) business Mathematics |
| Zdroj: | International Journal of Heat and Mass Transfer. 42:923-940 |
| ISSN: | 0017-9310 |
| DOI: | 10.1016/s0017-9310(98)00221-x |
| Popis: | We demonstrate the use of the zonal model approach, which is a simplified method for calculating natural and mixed convection in rooms. Zonal models use a coarse grid and use balance equations, state equations, hydrostatic pressure drop equations and power law equations of the form m=CΔPn. The advantages of the zonal approach and its modular implementation are discussed. The zonal model resolution of nonlinear equation systems is demonstrated for three cases: a 2-D room, a 3-D room and a pair of 3-D rooms separated by a partition with an opening. A sensitivity analysis with respect to physical parameters and grid coarseness is presented. Results are compared to computational fluid dynamics (CPD) calculations and experimental data. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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