Tao Mei, Zhan-Xiu Chen, Li Yang, Kun Wang, Rui-Can Miao. Effect of rough inner wall of nanochannel on fluid flow behavior [J]. Acta Physica Sinica, 2019, 68(9): 094701-1
- Acta Physica Sinica
- Vol. 68, Issue 9, 094701-1 (2019)
Fig. 1. (a) Simulation system; (b) schematic of nanostructure.(a) 模拟系统图; (b) 纳米结构示意图
Fig. 2. Schematic of nanostructure: (a) Couette flow; (b) Poiseuille flow.模型结构示意图 (a) Couette流动; (b) Poiseuille流动
Fig. 3. Density profiles in the z -direction with different energy coefficient c : (a) c = 2.0; (b) c = 1.0; (c) c = 0.6; (d) c = 0.2.
不同势能系数c 下流体沿z 方向的密度分布 (a) c = 2.0; (b) c = 1.0; (c) c = 0.6; (d) c = 0.2
Fig. 4. Effect of rib height h on the distribution of fluid number density near wall surface: (a) Rough wall surface; (b) smooth wall surface.
肋高h 对壁面附近流体数密度分布的影响 (a)粗糙壁面; (b)光滑壁面
Fig. 5. Effect of rib spacing a on the distribution of fluid number density near wall surface: (a) Rough wall surface; (b) smooth wall surface.
肋间距a 对壁面附近流体数密度分布的影响 (a)粗糙壁面; (b)光滑壁面
Fig. 6. Velocity profiles in the y -direction with different rib height h : (a) Couette flow; (b) Poiseuille flow.
不同肋高h 下流体沿y 方向的速度分布 (a) Couette流动; (b) Poiseuille流动
Fig. 7. Standard deviation distribution of slip length with different rib height h .
不同肋高h 下滑移长度标准差分布
Fig. 8. (a) Effect of rib height h on the slip length; (b) effect of rib height h on the slip velocity.
(a) 肋高h 对滑移长度的影响; (b) 肋高h 对滑移速度的影响
Fig. 9. Velocity profiles in the y -direction with different rib spacing a : (a) Couette flow; (b) Poiseuille flow.
不同肋间距a 下流体沿y 方向的速度分布 (a) Couette流动; (b) Poiseuille流动
Fig. 10. Standard deviation distribution of slip length with different rib spacing a .
不同肋间距a 下滑移长度标准差分布
Fig. 11. (a) Effect of rib spacing a on the slip length; (b) effect of rib spacing a on the slip velocity.
(a) 肋间距a 对滑移长度的影响; (b) 肋间距a 对滑移速度的影响
Fig. 12. Effect of energy coefficient c on the distribution of fluid number density near wall surface: (a) Rough wall surface; (b) smooth wall surface.
势能系数c 对壁面附近流体数密度分布的影响 (a)粗糙壁面; (b)光滑壁面
Fig. 13. Velocity profiles in the y -direction with different energy coefficient c : (a) Couette flow; (b) Poiseuille flow.
不同势能系数c 下流体沿y 方向的速度分布 (a) Couette流动; (b) Poiseuille流动
Fig. 14. Standard deviation distribution of slip length with different energy coefficient c .
不同势能系数c 下滑移长度标准差分布
Fig. 15. (a) Effect of energy coefficient c on the slip length; (b) effect of energy coefficient c on the slip velocity.
(a) 势能系数c 对滑移长度的影响; (b) 势能系数c 对滑移速度的影响
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Table 1. Corresponding roughness and contact angle under different simulation conditions.
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