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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 7 - WATER RESOURCES AND HYDROINFORMATICS : Simulations of Taylor Couette Flow and Cold-Flow Jet Using an Axisymmetric Lattice Boltzmann Method
Simulations of Taylor Couette Flow and Cold-Flow Jet Using an Axisymmetric Lattice Boltzmann Method
Author : Wei Wang and Jianguo Zhou
Recently, a reformulated axisymmetric Lattice Boltzmann model (AxLAB©) was presented by Zhou (Zhou, 2011). The main features are (1) the added sink or source and force terms are more simple than the other existing schemes; and (2) there is no requirement of calculation for velocity gradients with all the advantages of his earlier developed model (AxLAB). In this paper, we will apply the AxLAB© to investigate the flow characteristics for two complex axisymmetric flows. First of all, the Taylor Couette flow which occurs between the two concentric cylinders with the inner cylinder rotating is considered, and then, different forced axisymmetric laminar cold-flow jets are taken into account with different values of forcing amplitudes in the jet. The numerical results will be compared with other existing numerical results or experimental data reported in previous studies to demonstrate the accuracy of the model. To show the performance of the proposed model, the same problems were also simulated by AxLAB. Numerical results showed that the present axisymmetric model is much more efficient than the 3D model for an axisymmetric flow problem.
File Size : 395,771 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Date Published : 19/07/2016
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