Liyuan Wang¹, Heng Qiao¹, Zhenbin Huang¹, Krishna Shrestha^2,3,*, Xueyuan Yan¹

Structural Durability & Health Monitoring, Vol.20, No.5, 2026, DOI:10.32604/sdhm.2026.080806 - 24 August 2026

Abstract This paper introduces a novel external prestressing system specifically designed for strengthening hollow slab beams. To validate the system’s feasibility and isolate flexural behavior from interface slip effects, experimental investigations were conducted on monolithically cast specimens representing an idealized, fully bonded state. By integrating theoretical analysis, experimental testing, and finite-element numerical simulation, the study examines the mechanical behavior and design principles of the proposed configuration. Results indicate that the stress development process of the externally prestressed beam (N2) exhibits strong similarity to that of a conventional internally prestressed beam (N1). Notably, the implementation of the More >

Bingbing Han^1,2, Ruidong Li¹, Yu Zhang^2,3,*, Hui Zhang⁴

Structural Durability & Health Monitoring, Vol.20, No.5, 2026, DOI:10.32604/sdhm.2026.075275 - 24 August 2026

Abstract To explore the impact of seismic action on the stability of saline soil subgrade slopes considering the influence of surface runoff on the strength of saline soil subgrade fillers, this paper first conducted shear tests on saline soil under different moisture contents to determine the influence of moisture content on the shear strength of saline soil. Then, the initial moisture field of the saline soil subgrade was simulated using COMSOL software, and a subgrade moisture content-strength parameter model was established based on the calculated moisture fields under different rainfall intensities. Subsequently, based on the subgrade… More >

Yujie Yan^1,2, Na An², Yanling Wang^1,*, Xiongwei Liu², Cheng Ji², Shu Jiang³

Energy Engineering, Vol.123, No.9, 2026, DOI:10.32604/ee.2025.070608 - 06 August 2026

Abstract Hydraulic fracturing technology is regarded as the most prevalent and effective means for unlocking tight natural fractured sandstone reservoirs and understanding the fracture and pre-existing natural fracture interaction is critical in the hydraulic fracturing design. Based on the global cohesive element model, the geological and engineering parameters were compared to explore the stimulation effectiveness. Numerical simulations demonstrate that when hydraulic fractures encounter natural fractures, various phenomena such as sliding, termination, and crossing occur, demonstrating the complex mechanical interaction. As the joint fracture energy (JFE) increases, a decrease in the total length and width of the… More >

Lei Yang^1,2, Yiyun Hu¹, Xianglong Yang^1,*

CMES-Computer Modeling in Engineering & Sciences, Vol.148, No.1, 2026, DOI:10.32604/cmes.2026.083905 - 27 July 2026

Abstract Accurate prediction of entropy generation in nanofluid turbulent convection is essential for optimizing thermal system efficiency, yet remains challenging due to complex near-wall phenomena and thermal property variations with temperature. This study applied an elliptic blending turbulence model (SST k-ω-φ-α) to numerically analyze entropy generation in alumina-water nanofluid flow through a uniformly heated circular tube. The model’s performance was validated using both experimental data and established heat transfer and fluid flow correlations at small wall-bulk temperature difference condition, and its superiority was rigorously evaluated against two widely adopted turbulence models (SST k-ω and realizable k-ε).… More >

Haojie Zhu¹, Yuyang Zhang^1,2, Huiling Zhou¹, Yanxin Qiao^1,*, Haibing Zhang^3,*, Chengtao Li^4,*

CMC-Computers, Materials & Continua, Vol.88, No.3, 2026, DOI:10.32604/cmc.2026.083975 - 23 July 2026

Abstract In this study, the effects of temperature and corrosion product porosity on the micro-galvanic corrosion behavior of the β-Li phase in Mg-8Li alloy are systematically investigated using COMSOL Multiphysics numerical simulations. A two-dimensional micro-galvanic corrosion model incorporating mass transport, electrochemical reactions, and level set-based interface tracking is established to simulate the corrosion evolution over 72 h under varying temperature and porosity levels. The results indicate that temperature can significantly accelerate the corrosion process and the exchange current density increases exponentially. As the temperature increases from 35°C to 55°C, the electrolyte potential shifts negatively, and the maximum… More >

Omar Ghoulam¹, Hind Talbi^1,2, Kamal Amghar¹, Hamza Faraji^3,*, Saloua Senhaji⁴, Ismael Driouch¹

Energy Engineering, Vol.123, No.8, 2026, DOI:10.32604/ee.2026.076813 - 12 July 2026

Abstract This study numerically investigates turbulent flow and thermal performance in evaporator tubes equipped with rectangular partitions positioned at different locations. Two configurations are analyzed: (A) partitions on the top wall, center of channel, and bottom wall, and (B) partitions on the bottom wall, center of channel, and top wall. In addition, we examine the effect of varying the positions of the obstacles (S=D2,S=D,S=5D4, andS=3D/2) and the inclination angle (θ=60∘, θ=75∘, θ=90∘, θ=105∘ and θ=120∘) of the detached obstacle relative to the walls, an innovative aspect that had not been addressed in previous studies. More >

Xiutai Cao¹, Yuxin Sun¹, Bowen Shi¹, Hao Zhang¹, Hongli Tang¹, Yongbin Bi^1,2, Huiying Zhong^1,3,*

Energy Engineering, Vol.123, No.8, 2026, DOI:10.32604/ee.2025.074439 - 12 July 2026

Abstract With the steady advancement of China’s “Dual-Carbon” goals, CO₂ huff-and-puff technology has become one of the mainstream methods for enhancing oil recovery (EOR) in oilfields. However, differences in sweep radius of CO₂, CO₂-oil interaction mechanisms, injection parameters, and huff-and-puff modes between conventional heavy-oil and light-oil reservoirs still require further investigation. The NP oilfield consists of an upper heavy-oil zone and a lower light-oil zone, with the reservoir inclined at a certain angle. Taking this oilfield as the study area, a positively rhythmic reservoir geological model was established. A compositional numerical simulation approach was employed to analyze the… More > Graphic Abstract

Chi Zhong¹, Bo Ye¹, Xiao Wang², Yang Liu^1,*, Linmin Li¹

CMES-Computer Modeling in Engineering & Sciences, Vol.147, No.3, 2026, DOI:10.32604/cmes.2026.082583 - 30 June 2026

Abstract With the sharp increase in the heat flux of high-power electronic devices, efficient thermal management has become critically important. Boiling heat transfer in parallel small channels, which utilizes latent heat efficiently, has emerged as a key enabling technology for next-generation cooling solutions. However, parallel channel systems are extremely susceptible to flow instabilities, resulting in severely uneven distributions of flow rate and heat transfer among the channels. This unevenness often leads to local overheating, which in turn restricts the system’s reliability and limits its practical application. In this paper, a three-dimensional transient numerical simulation method was… More >

Dejun Wu^1,2,*, Chunlei Yu¹, Xuan Lu¹, Deshuo Tao¹, Xiaoning Li¹, Hao Song³

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.6, 2026, DOI:10.32604/fdmp.2026.084484 - 30 June 2026

Abstract To address the short peak-production period and limited incremental recovery commonly encountered during chemical flooding of high water-cut reservoirs, this study investigates the dynamic evolution of displacement fronts and their controlling factors through laboratory experiments and numerical simulation. Two-dimensional plate flooding experiments were first conducted to characterize the evolution of the oil bank in homogeneous and heterogeneous reservoirs, revealing a four-stage process of formation, enrichment, mobilization, and residual depletion. Based on water-cut behavior, the flooding process was further classified into early-response, peak-response, and late-response stages. A three-dimensional heterogeneous reservoir model was subsequently developed to quantify… More >

Wenxin Luo¹, Kaiwen Wang¹, Pugalenthiyar Thondaiman², Qianqian Wang^1,*

Frontiers in Heat and Mass Transfer, Vol.24, No.3, 2026, DOI:10.32604/fhmt.2026.082228 - 29 June 2026

Abstract Hydrogen (H₂) crossover in proton exchange membrane fuel cells (PEMFCs) reduces performance and poses safety risks, but its behavior under rapidly changing loads, which are common in vehicles, is not well understood. To address this, we developed a three-dimensional, two-phase, non-isothermal model that tracks H₂ from dissolution in the anode, through transport across the membrane, to reaction at the cathode. The analysis shows that diffusion dominates whereas convection contributes little. Key findings are as follows: H₂ crossover reduces the open-circuit voltage by 210 mV and raises cathode temperature by approximately 0.2°C; reducing the membrane thickness from 20… More >