scholarly journals Study on thermal contact resistance at liquid–solid interface based on fractal theory

AIP Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 125308
Author(s):  
Jiamin Li ◽  
Qingyong Zhu ◽  
Junjun Sun
Keyword(s):  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Fractal Theory ◽  
Thermal Contact ◽  
Solid Interface

scholarly journals Thermal Contact Resistance: Impact of Nanoscale Roughness on Heat Transport across the Solid–Solid Interface (Adv. Mater. Interfaces 4/2020)

2020 ◽  
Vol 7 (4) ◽  
pp. 2070018
Author(s):  
Jingwei Wang ◽  
Zhongwei Zhang ◽  
Run Shi ◽  
Bananakere Nanjegowda Chandrashekar ◽  
Nan Shen ◽  
...  
Keyword(s):  
Contact Resistance ◽  
Heat Transport ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Solid Interface ◽  
Nanoscale Roughness

An improved model for predicting thermal contact resistance at liquid–solid interface

2015 ◽  
Vol 80 ◽  
pp. 398-406 ◽  
Author(s):  
Chao Yuan ◽  
Bin Duan ◽  
Lan Li ◽  
Bofeng Shang ◽  
Xiaobing Luo
Keyword(s):  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Solid Interface ◽  
Improved Model

Modeling of Thermal Contact Resistance of Ball Screws Considering the Load Distribution of Balls

2021 ◽  
Vol 13 (4) ◽  
Author(s):  
Xiangsheng Gao ◽  
Jiqian Ma ◽  
Qi Li ◽  
Min Wang ◽  
Tao Zan
Keyword(s):  
Contact Resistance ◽  
Load Distribution ◽  
Axial Load ◽  
Thermal Contact Resistance ◽  
Fractal Theory ◽  
Thermal Contact ◽  
Ball Screw ◽  
Load Increase ◽  
Position Parameter ◽  
Geometry Error

Abstract A new analytical method for the modeling of the thermal contact resistance of ball screws considering the load distribution of balls is proposed in this research. The load on balls is analyzed by the force analysis of ball screws, and then, the thermal contact resistance is obtained by the minimum excess principle and Majumdar–Bhushan (MB) fractal theory. The proposed method is validated by experimental results. The comparison with experimental and former results indicates that it is an effective method to evaluate the thermal contact resistance of ball screws. On that basis, effects of axial load, axial pretension, and geometry error of balls are discussed. It is concluded that the thermal contact resistance of ball screws increases along with axial load increase. The load on balls all decreases with axial pretension increase, and the thermal contact resistance of ball screws decreases with the axial pretension increase as well. When the axial load is applied on the nut in an axial-pretension ball screw, the load distribution in Nut A or B becomes less homogenized when the nut moves from nut position parameter ξ = 0 to 1. When the nut moves to ξ = 0.25, the thermal contact resistance will reach a minimum value, and it gets a maximum value at the nut position ξ = 1. The interval range of load and thermal contact resistance are obtained via uncertain analysis. It is concluded that the geometry error has much greater effects on the balls far away from the spacer.

THERMAL CONTACT RESISTANCE MATCHING TO OPTIMIZE PERFORMANCE IN THERMOELECTRIC GENERATORS

2020 ◽  
Vol 27 (7) ◽  
pp. 617-627
Author(s):  
Yuanyuan Tian ◽  
Mengjun Zhang ◽  
Junli Wang ◽  
Anbang Liu ◽  
Huaqing Xie ◽  
...  
Keyword(s):  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Thermoelectric Generators

Correlating the thermal contact resistance between metal/erythritol interfaces with surface roughness and contact pressure

2021 ◽  
Vol 176 ◽  
pp. 121407
Author(s):  
Biao Feng ◽  
Yu-Hong Zhang ◽  
Jing Tu ◽  
Li-Wu Fan ◽  
Zi-Tao Yu
Keyword(s):  
Surface Roughness ◽  
Contact Resistance ◽  
Contact Pressure ◽  
Thermal Contact Resistance ◽  
Thermal Contact

High‐Temperature Skin Softening Materials Overcoming the Trade‐Off between Thermal Conductivity and Thermal Contact Resistance

Small ◽  
2021 ◽  
pp. 2102128
Author(s):  
Taehun Kim ◽  
Seongkyun Kim ◽  
Eungchul Kim ◽  
Taesung Kim ◽  
Jungwan Cho ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
High Temperature ◽  
Contact Resistance ◽  
Thermal Contact Resistance ◽  
Thermal Contact ◽  
Trade Off

Heat Flow in Fractured Rocks: Stress and Moisture-Dependent Thermal Contact Resistance

Geothermics ◽  
2021 ◽  
Vol 95 ◽  
pp. 102113
Author(s):  
A.V. Garcia ◽  
J.C. Santamarina
Keyword(s):  
Heat Flow ◽  
Contact Resistance ◽  
Fractured Rocks ◽  
Thermal Contact Resistance ◽  
Thermal Contact
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