Numerical simulation of flow resistance characteristics in a rod bundle channel under rolling conditions

Ren, Tingting; Zhu, Zhiqiang; Wang, Jianjun; Yan, Changqi

doi:10.1016/j.anucene.2022.109573

Cited by 3 publications

(2 citation statements)

References 23 publications

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“…Flow resistance rate [10] is one of the most important parameters of porous materials, which represents the specific flow resistance per unit thickness of isotropic materials, as follows…”

Section: Flow Resistance and Permeability Of Honeycomb Sandwich Struc...mentioning

confidence: 99%

Study on the influence of hole shapes on the fluid and mechanical properties of perforated honeycomb sandwich structures

Xiao,

Zhou,

Luo

2024

J. Phys.: Conf. Ser.

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Due to the high load and heat transfer capacity, porous honeycomb sandwich structures are widely in engineering. However, in functional requirements, mass and heat transfer should be realized which results and perforated holes being applied in sandwich structures. The shape of the holes plays a crucial role in further improving the load-bearing and flow-resistance performance of the structure. In this study, the influence of hole shape on the flow resistance, permeability, and mechanical properties of perforated honeycomb sandwich structures are systematically studied. Five different hole shapes with the same area are considered, and the flow resistance, permeability, and maximum Mises stress of the perforated honeycomb sandwich structure under the five conditions are calculated. The results show that the hole shape does have a significant influence on the flow resistance, permeability, and mechanical properties of the structure, and especially, it is especially found that the circular structure has the lowest flow resistance and the rectangular structure has the highest load-bearing capacity.

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“…Flow resistance rate [10] is one of the most important parameters of porous materials, which represents the specific flow resistance per unit thickness of isotropic materials, as follows…”

Section: Flow Resistance and Permeability Of Honeycomb Sandwich Struc...mentioning

confidence: 99%

Study on the influence of hole shapes on the fluid and mechanical properties of perforated honeycomb sandwich structures

Xiao,

Zhou,

Luo

2024

J. Phys.: Conf. Ser.

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show abstract

“…Various turbulence models are available, accounting for different studies, and the appropriate turbulence model for each study should be verified [29]. At present, the k-ε model is used to assess the turbulence flow field in valves.…”

Section: Numerical Simulation and Boundary Conditionsmentioning

confidence: 99%

Flow Loss Analysis and Structural Optimization of Multiway Valves for Integrated Thermal Management Systems in Electric Vehicles

Zheng

Wei

2023

Energies

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The multiway valve is the core component of the integrated thermal management system in an electric vehicle, and its heat transfer loss and pressure loss significantly impact the performance of the whole thermal management system. In this paper, heat transfer loss and pressure loss in multiway valves are investigated using three-dimensional unsteady numerical simulations. Heat transfer loss and pressure loss under different operating modes are revealed, and relationships between pressure loss and mass flow rate, inlet temperature, and valve materials are studied. The results show that the significant temperature gradient around the control shaft results in heat transfer loss and pressure loss mainly occurs around the junction of the control shaft and the shell, where the flow direction changes sharply. The pressure loss is nonlinearly and positively correlated with the mass flow rate. Furthermore, the main geometric parameters of the pipeline and the control shaft are optimized. The pressure loss firstly increases and then decreases, with the increasing curvature of the inner walls of the pipe corners in four flow channels. Compared with the structural optimization at the pipe corners, increasing the curvature of the inner wall of the control shaft and the shell corners reduces pressure loss continuously. Moreover, this study obtains an optimal structure with minimum pressure loss using coupled structure optimization at the control shaft and shell corners.

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A new multi-scale coupling simulation of natural circulation system based on self-adaption data interaction method

Cai

Cui

et al. 2023

Annals of Nuclear Energy

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Numerical simulation of flow resistance characteristics in a rod bundle channel under rolling conditions

Cited by 3 publications

References 23 publications

Study on the influence of hole shapes on the fluid and mechanical properties of perforated honeycomb sandwich structures

Study on the influence of hole shapes on the fluid and mechanical properties of perforated honeycomb sandwich structures

Flow Loss Analysis and Structural Optimization of Multiway Valves for Integrated Thermal Management Systems in Electric Vehicles

A new multi-scale coupling simulation of natural circulation system based on self-adaption data interaction method

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