کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
756860 | 896243 | 2010 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Multi-relaxation-time lattice Boltzmann model for axisymmetric flows
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مکانیک محاسباتی
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Multi-relaxation-time lattice Boltzmann model for axisymmetric flows Multi-relaxation-time lattice Boltzmann model for axisymmetric flows](/preview/png/756860.png)
چکیده انگلیسی
In this paper, a lattice-Boltzmann equation (LBE) with multi relaxation times (MRT) is presented for axisymmetric flows. The model is an extension of a recent model with single-relaxation-time [Guo et al., Phys. Rev. E 79, 046708 (2009)], which was developed based on the axisymmetric Boltzmann equation. Due to the use of the MRT collision model, the present model can achieve better numerical stability. The model is validated by some numerical tests including the Hagen-Poiseuille flow, the pulsatile Womersley flow, and the external flow over a sphere. Numerical results are in excellent agreement with analytical solutions or other available data, and the improvement in numerical stability is also confirmed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Computers & Fluids - Volume 39, Issue 9, October 2010, Pages 1542–1548
Journal: Computers & Fluids - Volume 39, Issue 9, October 2010, Pages 1542–1548
نویسندگان
Liang Wang, Zhaoli Guo, Chuguang Zheng,