Evolutions of induced electromagnetic signatures of submarine under natural cavitation

E PENG; Shengnan ZOU; Shizhu LI; Linying LIU

doi:10.19693/j.issn.1673-3185.03246

Chinese Journal of Ship Research, Volume. 18, Issue 4, 140(2023)

Evolutions of induced electromagnetic signatures of submarine under natural cavitation

E PENG^1,2, Shengnan ZOU², Shizhu LI², and Linying LIU²

Author Affiliations

¹School of Advanced Manufacturing, Fuzhou University, Quanzhou 362251, China

²Quanzhou Institute of Equipment Manufacturing, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Quanzhou 362216, China

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Abstract Get PDF(in Chinese)

Figures & Tables(18)

Fig. 1. [in Chinese]

Fig. 2. [in Chinese]

Fig. 3. [in Chinese]

Fig. 4. [in Chinese]

Fig. 5. [in Chinese]

$The instantaneous distribution of vapor volume fraction, velocity field and induced electric field on the longitudinal plane y=0 （）时气体体积分数、速度场和感应电场在纵向平面y=0上的瞬时分布$

Fig. 6. The instantaneous distribution of vapor volume fraction, velocity field and induced electric field on the longitudinal plane y=0 （）时气体体积分数、速度场和感应电场在纵向平面y=0上的瞬时分布

Fig. 7. [in Chinese]

Fig. 8. Instantaneous evolutions of cavity at stern rudder ()时艉舵翼处空泡的瞬时演变进程

Fig. 9. [in Chinese]

Fig. 10. [in Chinese]

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Fig. 11. [in Chinese]

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Fig. 12. Time frequency characteristics of electric field at monitoring point P1−P4 ()时监测点P1～P4的电场时频特性

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Fig. 13. Time frequency characteristics of electric field at monitoring point P1−P4 ()时监测点P1～P4的电场时频特性

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Fig. 14. Time frequency characteristics of electric field at monitoring point P1−P4 ()时监测点P1～P4的电场时频特性

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Table 1. Mesh independence verification

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Table 1. Mesh independence verification

网格数	总阻力系数${C_{\text{D}}}$	电流密度/（A·m⁻²）	洛伦兹力/ N
1 787 449（第1套）	0.005 29	10.00×10−4	4.74×10−8
2 936 300（第2套）	0.005 14	9.51×10−4	4.53×10−8
3 603 309（第3套）	0.005 12	9.49×10−4	4.50×10−8

Table 2. Solver settings

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Table 2. Solver settings

组别	细项	设置情况
求解器	类型	压力基求解器
求解器	时间	瞬态
模型	多相流	Mixture
模型	湍流模型	RNG $k - \varepsilon $，标准壁面函数
相	初相	液态水（密度1 025 ${\text{kg/}}{{\text{m}}^{\text{3}}}$，动力黏性系数1.135×10−3 kg/(m·s−1)）
	次相	水蒸气（密度0.554 2 ${\text{kg/}}{{\text{m}}^{\text{3}}}$，动力黏性系数1.34×10−5 kg/(m·s−1)）
	空化模型	Schnerr-Sauer模型（饱和蒸气压力3 540 Pa）

Table 3. Time and space discretization schemes

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Table 3. Time and space discretization schemes

组别	细项	设置情况
压力‒速度耦合	算法	SIMPLE
空间离散	梯度	基于单元的最小二乘法
	压力	PRESTO!
	动量	二阶迎风
	体积分数	QUICK
	湍流动能	二阶迎风
时间离散		二阶迎风

Table 4. Comparison results of friction coefficient of circular pipes
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Table 4. Comparison results of friction coefficient of circular pipes
Ha f f_计算^[27] 相对误差/% f_实验^[28] 相对误差/%
12 0.0154 0.0147 4.76 0.0149 3.36

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E PENG, Shengnan ZOU, Shizhu LI, Linying LIU. Evolutions of induced electromagnetic signatures of submarine under natural cavitation[J]. Chinese Journal of Ship Research, 2023, 18(4): 140

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