Numerical investigation of heat transfer and flow characteristics of laminar flow in a tube with center-tapered wavy-tape insert

Liang, Yunmin; Liu, Peng; Zheng, Nianben; Shan, Feng; Liu, Zhichun; Liu, Wei

doi:10.1016/j.applthermaleng.2018.11.090

Cited by 62 publications

(7 citation statements)

References 37 publications

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“…8,9 Using the computational fluid dynamics (CFD) technique to investigate various phenomenon and study complex flow can provide more accurate outcomes. [10][11][12] Lately, many types of research connecting to increase of heat transfer using twisted insert have been carried out, [13][14][15][16] such as the study achieved by Moghaddaszadeh et al and Liang et al 17,18 to improve the heat performance by using the eccentric tape inserts type. The outcomes observed that the heat transfer coefficient was improved around 4.5 times by the use of this type with nanofluid.…”

Section: Introductionmentioning

confidence: 99%

Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Al‐Obaidi

2022

Heat Trans

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In different energy conservation types, heat transfer improvement is a significant field that is directly connected to systems of economic efficiency. In this analysis, different twisted tape configurations are considered such as the augmentation thermal approach, the impact of various twisted tape parameters on the thermal performance of flow pattern, improvement of heat transfer are numerically conducted. The geometrical configurations used for this investigation include twisted tape thickness, twisted tape width, inward thickness and number of turns. The design of the technique of the experiment is used to investigate the effect of these parameters on hydraulic flow structure and enhancement of heat transfer. The Taguchi method is based on analysis of changes and performs the orthogonal arrays. Besides this, the orthogonal array of L16 is selected for this numerical work. The average percentage error between the experimental and computational fluid dynamics (CFD) outcomes for Nu number and friction factor are noted at about 6.5% and 4.5%. It is observed that the best twisted tape configuration design is obtained by applying CFD methodology compared with the Taguchi method to improve the heat performance using the performance evaluation factor (PEF) was more than 1.2. The maximum value of temperature differences and friction factor was for model 13. Moreover, the thermal performance was good as the values of PEF and the values of PEF are greater than 1.

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Section: Introductionmentioning

confidence: 99%

Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Al‐Obaidi

2022

Heat Trans

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“…The results indicated that the suggested technique potential for enhancing many thermal application systems comprising different types of solar collectors. Liang et al 18 numerically investigated the characteristics of heat transfer with the laminar flow by inserting the tape of center tapered wavy. They notice that this type of tape insert has an important effect to decrease the flow resistance and enhance the heat performance in the tube with a low disturbance to the center pipe region.…”

Section: Introductionmentioning

confidence: 99%

Investigation of thermal flow structure and performance heat transfer in three‐dimensional circular pipe using twisted tape based on Taguchi method analysis

Al‐Obaidi

2021

Heat Trans

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“…A variety of biological characteristics have been used as bionic objects to improve the work efficiency of key component by heat transfer enhancement [18,19], micro-scale structure optimization [20][21][22][23], and reducing surface resistance [24][25][26]. When nutrients and water are transported from the root of the leaf to all parts, the leaf veins play a key role as shown in Figure 1.…”

Section: Introductionmentioning

confidence: 99%

Leaf Vein-Inspired Bionic Design Method for Heat Exchanger Infilled with Graded Lattice Structure

2021

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Due to its excellent performance and high design freedom, the lattice structure has shown excellent capabilities and considerable potential in aerospace and other fields. This paper proposes a method to map the biometric model to the lattice structure. Taking leaf veins as bionic objects, they are used to generate a bionic design with a gradient lattice structure to improve the performance of a heat exchanger. In order to achieve the above goals, this article also proposes a leaf vein model and a mapping method that combine the leaf vein model with the lattice structure. A series of transient thermal finite element simulations was conducted to evaluate and compare the heat dissipation performance of different designs. The analysis results show that the combination of the bionic design and the lattice structure effectively improves the heat dissipation performance of the lattice structure heat exchanger. The results indicate that the application of bionic design in lattice structure design has feasibility and predictable potential.

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Numerical investigation of heat transfer and flow characteristics of laminar flow in a tube with center-tapered wavy-tape insert

Cited by 62 publications

References 37 publications

Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Thermal flow and heat performance analyses in circular pipe using different twisted tape parameters based on design of experiments

Investigation of thermal flow structure and performance heat transfer in three‐dimensional circular pipe using twisted tape based on Taguchi method analysis

Leaf Vein-Inspired Bionic Design Method for Heat Exchanger Infilled with Graded Lattice Structure

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