Evaluation of various turbulence models in predicting airflow and turbulence in enclosed environments by CFD: Part 1 -- summary o
Zhai, Z. J., Zhang, W., Zhang, Z. and Chen, Q.Y.
HVAC & R Research, 13(6):853-870
Zhai, Z. J., Zhang, W., Zhang, Z. and Chen, Q.Y."Evaluation of various turbulence models in predicting airflow and turbulence in enclosed environments by CFD: Part 1 -- summary o", HVAC & R Research, 13(6):853-870.
Abstract:
To reduce the computing time of the RSMs, algebraic Reynolds stress models (ASMs) were developed accordingly (Rodi 1976). The ASM derives algebraic equations for all Reynolds stress and fluxes from the differential stress models in which each Reynolds stress correlates with others and the derivatives of velocity and temperature. Jouvray et al. (2007) tested several ASMs against the standard k-[epsilon] and k-l models (Wolfshtein 1969) for two rooms with displacement and mixing ventilation. The results showed that the nonlinear ASMs give marginally better agreement with the measured data than do others. The application of the nonlinear models may not be well justified due to the strong case-dependent stability performance and the high additional computational costs.