THEORETICAL RESEARCH ON FLOW INSTABILITY IN PARALLEL CHANNELS UNDER MOTION CONDITIONS

被引：0

作者：

Ma, Yingying ^{[1
]}

Tian, Wenxi ^{[1
]}

Su, Guanghui ^{[1
]}

Qian, Libo ^{[2
]}

Zhang, Youjia ^{[3
]}

Huang, Yanping ^{[2
]}

Wang, Yanlin ^{[2
]}

Qiu, Suizheng ^{[1
]}

机构：

[1] Xi An Jiao Tong Univ, Xian 710049, Shaanxi, Peoples R China

[2] Nucl Power Inst China, Chengdu, Sichuan, Peoples R China

[3] KTH Royal Inst Technol, Nucl Power Safety Phys Sch Engn Sci, Stockholm, Sweden

来源：

PROCEEDINGS OF THE 21ST INTERNATIONAL CONFERENCE ON NUCLEAR ENGINEERING - 2013, VOL 4 | 2014年

关键词：

NATURAL CIRCULATION CHARACTERISTICS; ROLLING MOTION; MARINE REACTOR; HEAT-TRANSFER; PULSATING FLOW; LAMINAR-FLOW; MODEL; TUBE; CORE;

D O I：

暂无

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

In motion conditions, in addition to gravitational acceleration, a new acceleration was developed and it was added to the thermal hydraulics characteristics in flow channels. The additional acceleration leads to the different thermal hydraulic characteristics and will trigger the flow oscillation and even flow instability in parallel channels. In order to study the effect of the additional acceleration on the flow oscillation, the corresponding physical models are established in this work. Through the deduction of the mathematical model, the code for flow instability under motion conditions with Gear algorithm is developed. The flow oscillation curves, critical power, marginal stability boundary (MSB) are obtained. After comparison and analysis, it is found that some motion conditions lead to flow periodic oscillation. Different flow passage position results in different oscillation amplitudes. The marginal stability boundaries (MSB) under different motion conditions fit well, that is, the effect of motion conditions on MSB is small. Number of channels has little effect; however, channel arrangement influences the flow in every channel. These conclusions are of great significance in marine reactor design.

引用

页数：13

共 39 条

[1]

Bragt D.D.B.V., 1998, NUCL TECHNOL, V121, P40

[2]

Gao P.Z., 1999, NUCL POWER ENG, V20

[3]

Gao P.Z., 1997, NUCL SCI ENG, V18

[4]

Gao P.Z., 1999, NUCL SCI ENG, V19

[5]

Gao P.Z., 1997, J HARBIN ENG U, V18

[6]

GEAR AC, 1974, UCID30001 LAWR LIIV

[7]

Guo Y, 2006, THESIS XIAN JIAOTONG

[8]

[郭赟 GUO Yun], 2007, [核动力工程, Nuclear Power Engineering], V28, P58

[9] THERMAL-HYDRAULIC BEHAVIOR OF A MARINE REACTOR DURING OSCILLATIONS [J].

ISHIDA, I ;

KUSUNOKI, T ;

MURATA, H ;

YOKOMURA, T ;

KOBAYASHI, M ;

NARIAI, H .

NUCLEAR ENGINEERING AND DESIGN, 1990, 120 (2-3) :213-225

[10]

Ishida T, 2002, J NUCL SCI TECHNOL, V216, P213

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