Paper Title:
Turbulent Mixing and Scale-Up of Ejectors at High Schmidt Number
  Abstract

Micro- and Macro-mixing models were built and numerical investigation of turbulent mixing in ejectors was carried out. Mixture fraction and its variance presented by Fox were remodeled to demonstrate micro- and macro-mixing performance. The length needed to reach 98% micro- and macro-mixing were founded is functions of uj/um and D/d. The mathematical scale-up models were presented based on the simulation results using least square method for micro- and macro-mixing and five different cases were used to validate the models. The results showed that macro-mixing scale-up model agreed well with CFD simulations but the micro-mixing scale-up model had a less precision compared with that of macro-mixing model. This because that the mechanism of micro-mixing process is very complexity but the CFD models we used in this work are fairy simple.

  Info
Periodical
Advanced Materials Research (Volumes 233-235)
Edited by
Zhong Cao, Lixian Sun, Xueqiang Cao, Yinghe He
Pages
1340-1344
DOI
10.4028/www.scientific.net/AMR.233-235.1340
Citation
L. X. Ma, R. S. Bi, X. S. Tan, Z. D. Liu, W. W. Chen, S. Q. Zheng, "Turbulent Mixing and Scale-Up of Ejectors at High Schmidt Number", Advanced Materials Research, Vols. 233-235, pp. 1340-1344, 2011
Online since
May 2011
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Price
$32.00
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