Chinese Journal of Ship Research, Volume. 18, Issue 6, 21(2023)
Numerical investigation on unsteady force suppression of pump-jet rotor by oscillating stator trailing edge flaps
Figures & Tables(13)
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Table 1. Parameters of different parts for the pump-jet propulsor
View tableView in ArticleTable 1. Parameters of different parts for the pump-jet propulsor
参数 数值 导管翼型 NACA 4412 导管弦长Lduct /mm 190 导管入口端直径Dduct,in /mm 260 导管出口端直径Dduct,out /mm 232 转子叶片翼型 NACA 66 mod & NACA a = 0.8 转子叶片数Zrotor 5 转子直径Drotor /mm 240 转子毂径比Dhub /Drotor 0.273 定子导叶翼型 NACA 66 mod & NACA a = 0.8 定子叶片数Zstator 7 定子预旋角Astator /(°) 7.5 定子弦长Lstator /mm 50
Table 2. Calculation results of resistance of Suboff (without propulsor) under different grids
View tableView in ArticleTable 2. Calculation results of resistance of Suboff (without propulsor) under different grids
来流速度/(m∙s−1) 试验值/N Grid-Suboff-1 (483×104) Grid-Suboff-2 (1 267×104) Grid-Suboff-3 (2 632×104) 计算值/N 误差/% 计算值/N 误差/% 计算值/N 误差/% 3.05 102.30 101.5 0.77 102.1 0.20 102.2 0.09 5.14 283.80 271.3 4.40 277.8 2.11 278.6 1.83 6.10 389.20 373.2 4.11 378.5 2.75 380.4 2.26 7.16 526.60 505.6 3.99 515.1 2.18 518.6 1.52 8.23 675.60 653.1 3.33 665.9 1.43 668.2 1.10
Table 3. Calculation results of hydrodynamics performance of pump-jet propulsor under different grids
View tableView in ArticleTable 3. Calculation results of hydrodynamics performance of pump-jet propulsor under different grids
计算模型 网格数 定常计算SST k–ω， N = 780 r/min，uinlet = 3.05 m/s 推力/N 相对误差/% 扭矩/(N∙m) 相对误差/% Grid-PJ-1 721×104 635.17 0.69 39.181 1.11 Grid-PJ-2 1 137×104 637.12 0.39 39.419 0.51 Grid-PJ-3 1 708×104 639.11 0.08 39.579 0.11 Grid-PJ-4 2 132×104 639.59 0 39.621 0
Table 4. Number of grids in computational domains
View tableView in ArticleTable 4. Number of grids in computational domains
计算域 网格数 背景计算域 881.1×104 导管域 163.9×104 定子域 236.4×104 转子域 593.7×104 襟翼域 143.1×104 全域 2 018.1 ×104
Table 5. Hydrodynamics calculation results under different working conditions
View tableView in ArticleTable 5. Hydrodynamics calculation results under different working conditions
推力系数KT 推力系数变化率ΔKT/% 扭矩系数10KQ 扭矩系数变化率ΔKQ/% 效率η 效率变化率Δη/% 基准模型 0.365 1 0 0.902 0 0 0.6445 0 襟翼静止 0.367 3 0.602 6 0.904 6 0.288 2 0.646 3 0.279 3 襟翼作动（最优控制） 0.366 8 0.907 2 0.907 2 0.576 5 0.643 6 −0.139 6
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Wanghao TANG, Xiuchang HUANG, Zhiqiang RAO, Hongxing HUA. Numerical investigation on unsteady force suppression of pump-jet rotor by oscillating stator trailing edge flaps[J]. Chinese Journal of Ship Research, 2023, 18(6): 21
Paper Information
Category: Ship Design and Performance
Received: Dec. 23, 2022
Accepted: --
Published Online: Mar. 21, 2025
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