Article
Materials Science, Multidisciplinary
Yangjie Wang, Jige Chen
Summary: This study reveals a crossover of wave-packet dynamics from a phonon-dominated to a soliton-dominated state in a quasi-one-dimensional molybdenum disulfide (MoS2) sheet at high temperatures below its melting point. The anomalous energy transport exhibits a universality class with a thermal conductivity divergence exponent alpha = 2/5 at a finite length scale within 2000 nm when solitons are excited above 600 K, indicating a peculiar solitonlike contribution to thermal conduction in low-dimensional crystalline solids at high temperatures.
Article
Nanoscience & Nanotechnology
N. Mori, A. Komada, G. Mil'nikov
Summary: The thermal conductance of one-dimensional mass-disordered systems is calculated using linear and quadratic dispersion models. Different dispersion models exhibit different thermal diffusion behaviors, with super-diffusive nature for the linear model and normal-diffusion behavior for the quadratic model.
Article
Thermodynamics
C. F. Munafo, P. Rogolino, R. Kovacs
Summary: A nonlinear hyperbolic heat transport equation based on the Cattaneo model without mechanical effects is proposed. The two-dimensional Maxwell-Cattaneo-Vernotte heat equation is analyzed with homogeneous and non-homogeneous boundary conditions and linearly dependent thermal conductivity and relaxation time on temperature. To solve the system of partial differential equations and study the behavior of temperature evolution, a numerical finite difference scheme for the two-dimensional non-Fourier heat transfer equation is introduced and studied. The attributes of the numerical method, including stability, dissipation, and dispersive errors, are also investigated.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2024)
Article
Thermodynamics
Jose Aguiar Santos Junior, Jose Ricardo Ferreira Oliveira, Jefferson Gomes do Nascimento, Ana Paula Fernandes, Gilmar Guimaraes
Summary: This paper proposes an experimental method to simultaneously measure the thermal conductivity and thermal diffusivity of solid conductive and non-conductive materials. The method applies two different thermal models and utilizes Bayesian inference to solve the inverse problem, ultimately determining the thermal properties of the samples.
INTERNATIONAL JOURNAL OF THERMAL SCIENCES
(2022)
Article
Polymer Science
M. Almasoudi, M. Sh. Zoromba, M. H. Abdel-Aziz, M. Bassyouni, Ahmed Alshahrie, Abdullah M. Abusorrah, Numan Salah
Summary: Conducting polymers with 1D morphology have advantages for thermoelectric applications by improving electrical conductivity. Using an appropriate organic compound to create a self-degraded template is key for producing enhanced TE properties in 1D conducting polymers. In this study, PPy nanotubes synthesized with varying MO concentrations showed improved TE performance and a maximum power factor of 1 mu W/m k².
Article
Chemistry, Analytical
Youming Xu, Shucheng Guo, Xi Chen
Summary: In this study, we reported the crystal growth and thermal and optical properties of ZrSe3. The results showed that ZrSe3 has excellent thermal conductivity and specific heat, and optical phonons play an important role in thermal transport at high temperatures.
Article
Physics, Multidisciplinary
Subhadip Chakraborti, Santhosh Ganapa, P. L. Krapivsky, Abhishek Dhar
Summary: This study tests the equivalence between continuum hydrodynamics and microscopic descriptions in the context of blast wave evolution, finding significant agreement with small deviations attributed to heat conduction.
PHYSICAL REVIEW LETTERS
(2021)
Article
Engineering, Multidisciplinary
Zhuoxin Wen, Chi Hou, Meiying Zhao, Xiaopeng Wan
Summary: In this paper, the authors investigate the transient temperature response of a cracked plate under thermal shock using a non-Fourier heat transfer theory. They develop a peridynamic model that considers the non-Fourier effect, the orthotropy of thermal conductivity, and the crack thermal resistance. The model avoids spatial derivatives and is efficient for analyzing problems with discontinuities.
APPLIED MATHEMATICAL MODELLING
(2023)
Article
Chemistry, Multidisciplinary
Sha-Sha Wang, Yi-Ran Liu, Xiang Yu, Yang Zhou, Tao-Tao Zhong, Yue-Tian Li, Ling-Hai Xie, Wei Huang
Summary: The use of racemic 9,9 '-diphenyl-[2,2 '-bifluorene]-9,9 '-diol enantiomers resulted in the formation of non-helical 1D channel structures with special symmetry and supramolecular interactions, leading to the formation of microtubes with significant lithium-ion conductivity through solvent etching. This novel 1D channel structure shows potential research value in the field.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Materials Science, Characterization & Testing
L. Gahleitner, G. Thummerer, G. Mayr, G. Mayr, P. Burgholzer, U. Cakmak
Summary: This study presents a one-dimensional photothermal method using the virtual wave concept to estimate subsurface interface parameters and demonstrates its application in layered materials. Experimental results validate the accurate estimation of interfacial parameters for the analyzed samples.
NDT & E INTERNATIONAL
(2024)
Article
Chemistry, Physical
Hanqing Liu, Keyan Sun, Xiaoyu Shi, Huning Yang, Hongsheng Dong, Yan Kou, Pratteek Das, Zhong-Shuai Wu, Quan Shi
Summary: Two-dimensional materials are being extensively used to improve the performance of phase change materials, utilizing their high thermal conductivity and loading capacity to enhance thermal energy storage.
ENERGY STORAGE MATERIALS
(2021)
Article
Thermodynamics
M. Hadi Ghasemi, S. Hoseinzadeh, S. Memon
Summary: This study presents an analytic solution for the dual-phase-lag heat conduction in a functional graded cylindrical material. The results show that the dual-phase-lag model reaches steady temperature faster than the single-phase-lag model. The temperature stability in functional graded materials is influenced by the heterogeneity coefficient. The study provides a straightforward multivariate analytical solution for the non-Fourier conduction equation in a finite cylinder with functional graded materials and any boundary conditions.
INTERNATIONAL COMMUNICATIONS IN HEAT AND MASS TRANSFER
(2022)
Review
Chemistry, Multidisciplinary
Mustafa Majid Rashak Al-Fartoos, Anurag Roy, Tapas K. Mallick, Asif Ali Tahir
Summary: Amidst global challenges, thermoelectricity offers a promising solution for sustainable energy by converting waste heat into electricity. However, obstacles such as high cost, toxicity, and reliance on rare-earth elements hinder the development of high-performance thermoelectric materials.
Article
Engineering, Multidisciplinary
Wang Yang, Yifan Wang, Yun Li, Can Gao, Xiaojuan Tian, Ni Wu, Zishuo Geng, Sai Che, Fan Yang, Yongfeng Li
Summary: By coating boron nitride nanosheets and carbon nanotubes on a commercial polyurethane foam skeleton, a three-dimensional network structure composite with enhanced thermal and mechanical properties was constructed for potential application in electronic packaging.
COMPOSITES PART B-ENGINEERING
(2021)
Article
Materials Science, Ceramics
S. L. Guo, Y. X. Zhang, K. F. Wang, B. L. Wang, C. W. Zhang
Summary: This study examines the thermoelastic fields of semi-infinite ceramics subjected to surface heating shock using the non-Fourier C-V model, with the introduction of a family of exponential functions to simulate the heating process. It is found that the significant time range and spatial scale of the non-Fourier effect have been determined, and the thermal stress increases and converges along depth. The domain where the maximum thermal stresses influenced by non-Fourier heat conduction are influenced is also identified in the plane of dimensionless heating duration vs thermoelastic wave speed.
CERAMICS INTERNATIONAL
(2021)
Article
Engineering, Chemical
Tong Liu, Moran Wang
Summary: Digital rock analysis provides a powerful tool for predicting geophysical properties and studying fluid and interfacial transport mechanisms in rocks, but there is a struggle to balance scanning resolution and sample size due to imaging technology limitations. The critical size of REV for multiphase flow in porous media is found beyond twice that for single-phase flow in this study, indicating the influence of phase interaction and wettability on relative permeability-saturation curve in multiphase flow.
TRANSPORT IN POROUS MEDIA
(2022)
Article
Mathematics, Interdisciplinary Applications
Fanli Liu, Moran Wang
Summary: This study evaluates the applicability of the macroscopic approach for the displacing process of droplets in micropores, identifying three size effects affecting the displacement results: Laplace pressure, low interfacial density, and breakdown of macroscopic description. The influence of system scale and fluid type on these size effects are further investigated, indicating that traditional macroscopic approach may be invalid even when continuum assumption still holds due to other size effects.
JOURNAL OF MULTISCALE MODELLING
(2022)
Article
Engineering, Mechanical
Bin Liu, Vladimir Khvesyuk, Alexander A. Barinov, Moran Wang
Summary: Interfacial roughness plays an important role in nanoscale thermal transport, but existing theoretical descriptions are lacking due to the difficulty in quantifying phonon scattering at disordered interfaces. This study proposes an elastic wave model that describes phonon-interface interaction using interface elasticity. The model can quantitatively estimate the effect of roughness on thermal boundary conductance and provide a transmission image of wave-like phonons at the interface.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2022)
Article
Thermodynamics
Xin Ran, Moran Wang
Summary: A steady-state Monte Carlo scheme for phonon transport based on the energy-based deviational phonon Boltzmann transport equation has been developed. This method determines the paths of energy packets through statistical scattering probability and is capable of handling systems with arbitrary temperature differences. It has been verified and shown to improve computational efficiency compared to transient algorithms for steady phonon transport.
JOURNAL OF HEAT TRANSFER-TRANSACTIONS OF THE ASME
(2022)
Article
Energy & Fuels
Wenhai Lei, Qiangqiang Li, Hai-En Yang, Tian-Jiang Wu, Jiong Wei, Moran Wang
Summary: This study proposes a new mechanism of preferential flow control in heterogeneous porous media by manipulating the concentration of microgel particle suspension, which is supported by microfluidic experiments and pore-scale simulations. By controlling the injection concentration, different transport modes can be identified, and the optimal synchronous displacement is achieved at an intermediate injection concentration. However, weak concentration manipulation at low injection concentrations and frequent alternation of preferential flow pathways at high injection concentrations can lead to entrapment of oleic ganglia. These findings deepen the understanding of microgel particle suspension dynamics in heterogeneous porous media and have implications for applications such as enhanced oil recovery and CO2 sequestration.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Chemistry, Physical
Yuankai Yang, Xudong Zhang, Zhiguo Tian, Guido Deissmann, Dirk Bosbach, Peng Liang, Moran Wang
Summary: Understanding the thermal effects on ion transport in porous media is crucial for environmental applications. This study investigates the thermodiffusion of cations in nanoporous silica and shows that the temperature-induced polarization of surface charges significantly influences ionic transport. The findings suggest that the electric field in nanopores changes with temperature gradients, affecting the motion of ions in nanoconfined spaces. This research improves the understanding of ion transport in nanoporous media and has the potential to advance the development of diffusional metamaterials induced by specific thermal fields.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Mechanics
Wenhai Lei, Xukang Lu, Fanli Liu, Moran Wang
Summary: This study reports the non-monotonic wettability effects on displacement efficiency in porous structures. Experiments show that there exists a critical wettability in porous matrix structures with preferential flow pathways to achieve the highest displacement efficiency. The distribution of phases in porous structures also varies under different wettability conditions. Pore-scale mechanisms are identified to explain the formation of this non-monotonic wettability rule.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Chemistry, Physical
Bin Liu, Yangyu Guo, Vladimir I. Khvesyuk, Alexander A. Barinov, Moran Wang
Summary: This theoretical investigation explores coherent-to-incoherent heat conduction in multilayer nanostructures, demonstrating that in the coherent regime, accurate predictions can be made using the elastic continuum model. The study shows that as temperature or system size increases, phonon dephasing scattering results in deviation from coherent-limit calculation, and by introducing phonon incoherence, classical minimum thermal conductivity can be reproduced, extending the pure wave model into the wave-particle crossing regime.
Article
Mechanics
Fanli Liu, Moran Wang
Summary: The preference of two-phase displacements was studied systematically through theoretical derivations and numerical simulations using a non-uniform pore doublet model. All major impact factors were taken into consideration to obtain a complete phase diagram for preferential flow. The results validate the simple treatment for dual-permeability media and extend the phase diagram's applicability to disordered permeable media in general, contributing to the understanding and manipulation of preferential flow in heterogeneous permeable media.
JOURNAL OF FLUID MECHANICS
(2022)
Article
Energy & Fuels
Weiwei Zhu, Xupeng He, Yiteng Li, Gang Lei, Ryan Santoso, Moran Wang
Summary: This study uses a stochastic discrete fracture network method to simulate fractures in subsurface formations and conducts a sensitivity analysis. The results show that critically stressed fractures form the backbone of the stimulated reservoir volume (SRV), while partially open fractures can significantly enlarge the size of SRV. Fracture roughness is the most influential factor for the total length of critically stressed fractures, and the probability of open fractures is the most significant factor for the relative increase of SRV.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2022)
Article
Geosciences, Multidisciplinary
Weiwei Zhu, Xupeng He, Gang Lei, Moran Wang
Summary: The systematic analysis of the complexity of fracture systems, especially in three-dimensional (3D) fracture networks, is currently insufficient. In this study, various fracture networks with different geometries were generated using a stochastic discrete fracture network method, and their complexity was quantified using fractal dimension and singularity variation in a multifractal spectrum. The influential factors of complexity, such as geometrical fracture properties and system size, were systematically investigated. The results show that different parameters have varying degrees of significance on the complexity at different stages of fracture network development.
JOURNAL OF STRUCTURAL GEOLOGY
(2022)
Article
Chemistry, Physical
Wenhai Lei, Xukang Lu, Moran Wang
Summary: Micro/nanoparticle suspensions can adjust multiphase displacement in porous media, which has wide applications in various scientific and industrial contexts. Direct observation of suspension flow dynamics and corresponding multiphase patterns is challenging due to the opaque realistic porous media. However, microfluidic experiments provide alternative methods to observe suspension influence on interface and multiphase flow behaviors at high resolutions, improving understanding and optimization of displacement mechanisms.
ADVANCES IN COLLOID AND INTERFACE SCIENCE
(2023)
Article
Thermodynamics
Xin Ran, Yunfan Huang, Moran Wang
Summary: This paper proposes a hybrid Monte Carlo-discrete ordinates method (MC-DOM) for predicting phonon transport in mesoscopic systems with complex interfaces. The method combines the computational efficiency of DOM in the bulk region with the flexibility of MC near complex interfaces. It has been shown that the hybrid method runs faster than the pure particle method and is applicable for high-precision temperature calculation. The method enriches numerical tools for mesoscopic phonon transport simulation and contributes to the understanding and optimization of heat transport in micro/nanosystems with complex geometries.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Thermodynamics
Wuli Miao, Moran Wang
Summary: This study investigates thermal transport in metal/semiconductor multilayer films using the coupled electron and phonon Boltzmann transport equations combined with the phonon diffuse mismatch model. The importance of electron-phonon coupling transport and the critical thickness of the metal layer for considering this transport are demonstrated. The research findings provide insight into the manipulation of thermal conductivity in multilayers.
INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER
(2023)
Article
Engineering, Mechanical
Amer Alizadeh, Yunfan Huang, Fanli Liu, Hirofumi Daiguji, Moran Wang
Summary: Surface charging plays a crucial role in the stability of immiscible liquid-liquid interfaces, surfactant adsorption, drug delivery, and mineral flotation. This study presents an alternative experimental method using a streaming potential setup. A Y-Y shaped microchannel with a polymer-coated inner wall was employed to establish a flat and stable liquid-liquid interface. The method was successfully verified by investigating the charging of aqueous solution-silicon surface. The proposed method offers simplicity and flexibility for studying liquid-liquid interface charging mechanisms and inspiring quantitative macroscopic interfacial modeling.
INTERNATIONAL JOURNAL OF MECHANICAL SCIENCES
(2023)
Article
Physics, Multidisciplinary
Tinggui Chen, Baizhan Xia, Dejie Yu, Chuanxing Bi
Summary: This study proposes a gradient phononic crystal structure for enhanced acoustic sensing. By breaking the symmetry of the PC structure, topologically protected edge states are introduced, resulting in topological acoustic rainbow trapping. The robustness and enhancement properties are verified numerically and experimentally.
