Yushe Li^1,#, Peishe Wang^1,#, Suoying He^1,2,*, Chunguan Zhou³, Feiyang Long⁴, Zongjun Long⁴, Maojin Fu⁴, Jinyang Sheng⁴, Zhe Geng⁵, Shuzhen Zhang⁵, Huimin Pang¹, Lin Xia¹, Ghulam Qadir Chaudhary¹, Ming Gao¹

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.077360 - 04 March 2026

Abstract This study aims to mitigate crosswind-induced performance degradation in Natural Draft Dry Cooling Towers used in power plants by developing and assessing windbreak configurations that enhance ventilation while minimizing additional airflow resistance. Three novel windbreak designs, namely single-windbreak configuration with curved profile, double-windbreak configuration with curved profile, and double-windbreak configuration with inverted curved profile, are proposed accordingly and evaluated against conventional solutions. Three-dimensional numerical models of a 120 m high NDDCT equipped with these windbreaks, together with a conventional Y-shaped windbreak, are developed for systematic comparison. The results demonstrate that windbreak effectiveness strongly depends on… More > Graphic Abstract

Yonghong Deng^1,2, Ming Yang², Liqiong Chen¹, Hongwei Rao¹, Shengguang Li², Changhui Zhou², Yangyang Huang², Zizheng Kong², Xicheng Gao², Chong Di², Ting He^1,*

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.077227 - 04 March 2026

Abstract With the maturation of coalbed methane (CBM) exploitation and the transition into the late stages of dewatering and gas production, liquid loading in gathering pipelines has emerged as a major constraint on productivity and operational stability. Based on real-time field data and gas–liquid physicochemical analyses, this study elucidates the mechanisms governing liquid loading formation under varying temperature, pressure, and water saturation conditions. An HYSYS model is employed to determine the water dew point, while the Turner model is used to evaluate the critical conditions for liquid holdup. The results indicate that gas water saturation exerts… More >

Adebowale Martins Obalalu^1,*, Abdulazeez Adebayo Usman², Umair Khan³

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.076959 - 04 March 2026

Abstract Efficient thermal management in porous media is essential for advanced engineering applications, including solar energy systems, electronic cooling, and aerospace thermal control. This study presents a comprehensive analysis of ternary hybrid nanofluids, TiO₂–CdTe–MoS₂ dispersed in water, flowing over a vertical stretching or shrinking surface in a Darcy–Brinkman porous medium. The investigation accounts for the combined effects of magnetohydrodynamics, thermal radiation, viscous dissipation, and internal heat generation. In contrast to previous studies that predominantly focused on single or binary nanofluids, the present work systematically examines the thermal and hydrodynamic performance of ternary hybrid nanofluids, highlighting their enhanced… More >

Maolei Cui^1,2,*, Zengmin Lun^1,2, Jie Zhang^1,2, Jun Niu^1,2, Pufu Xiao^1,2

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.075360 - 04 March 2026

Abstract To clarify fluid flow mechanisms and establish effective development conditions in continental shale oil reservoirs, a high-temperature, high-pressure steady-state flow system integrated with nuclear magnetic resonance (NMR) technology has been developed. The apparatus combines sample evacuation, rapid pressurization and saturation, and controlled displacement, enabling systematic investigation of single-phase shale oil flow under representative reservoir conditions. Related experiments allow proper quantification of the activation thresholds and relative contributions of different pore types to flow. A movable fluid index (MFI), defined using dual T₂ cutoff values, is introduced accordingly and linked to key flow parameters. The results reveal… More > Graphic Abstract

Chaoyu Wei¹, Haipeng Zhang¹, Weidong Shi^1,*, Yongfei Yang^1,*, Linwei Tan¹, Xianglong Wu², Yurui Dai¹

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.074543 - 04 March 2026

Abstract During high-speed operation, mixed-flow pumps are susceptible to cavitation, which destabilizes the internal flow, increases energy losses, and degrades hydraulic efficiency. To assess the effectiveness of blade perforation as a cavitation-mitigation strategy, in this study several mixed-flow pump models incorporating perforations were developed. Numerical simulations were performed for configurations with circular holes positioned at different locations along the blade leading edge, and the computational results were validated against experimental measurements. The findings indicate that the location of the perforations plays a decisive role in cavitation suppression. Moving from the blade rim toward the hub along More >

Bo Zeng¹, Junfeng Li¹, Liqing Chen¹, Qiyong Gou¹, Hao Luo², Haiyan Zhu², Xuanhe Tang^2,*

FDMP-Fluid Dynamics & Materials Processing, Vol.22, No.2, 2026, DOI:10.32604/fdmp.2026.069978 - 04 March 2026

Abstract Deep shale gas reservoirs in the southern Sichuan Basin are typically characterized by significant horizontal stress anisotropy (expressed as stress difference), variable brittleness–ductility in rock mechanics, and strong heterogeneity. These complex geomechanical conditions lead to pronounced differences in hydraulic fracturing outcomes among wells and sections. To investigate hydraulic fracture propagation and fracturing fluid injection behavior under varying geomechanical settings, true triaxial physical simulation tests were performed on 400 × 400 × 400 mm artificial rock samples. The samples were designed with different media properties based on similarity criteria. A sensitivity analysis was conducted to assess… More >

Huiying Liu^1,2, Wenjin Wu^1,2,3,*, Yaqi Geng^1,2,3, Zhiqu Liu⁴, Xiulai Xiao⁴, Huadong Guo^1,2,3

Revue Internationale de Géomatique, Vol.35, pp. 121-130, 2026, DOI:10.32604/rig.2026.075844 - 04 March 2026

Abstract Moon-based Synthetic Aperture Radar (SAR) is particularly suitable for monitoring polar regions because of its consistent and continuous imaging. It has promising applications in the observation of sea ice by capturing rapid freeze-thaw cycles in the Arctic and Antarctic. However, the long synthetic aperture time inherent in Moon-based SAR may lead to image defocusing due to water fluctuations. Additionally, large incidence angles during observations in polar regions can result in weak backscatter from sea ice, thereby affecting the signal-to-noise ratio and ice–water discrimination. In this study, a ground-based experiment was conducted to evaluate the impact More >

Hao Zhu^1,2, Xi Chen^1,2,*, Pengcheng Qu^1,2, Yifan Zhu^1,2, Haoyi Wang^1,2, Yingxia Qi^1,2

Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2026.076127 - 28 February 2026

Abstract Pulse tube cryocoolers are widely employed in cryogenic systems, where gas contamination has become a critical factor limiting both performance and service life. To further investigate the condensation behavior of contaminants, this study develops a two-dimensional axisymmetric model of a linear-type cryocooler to simulate the transport and deposition processes of trace CO₂, evaluating the impact of contamination on system pressure drop under various operating conditions. Results indicate that CO₂ diffusion is primarily driven by concentration gradients. The CO₂ deposition rate increases markedly at low temperatures and high concentrations, with over 90% of deposition occurring in the cold-end… More >

M. A. Vega Navarrete^1,*, P. J. Argumedo Teuffer¹, C. M. Rodríguez Román¹, L. E. Marrón Ramírez², E. A. Islas Narvaez¹

Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2026.076095 - 28 February 2026

Abstract This article presents an adaptive intelligent control strategy applied to a lumped-parameter evaporator model, i.e., a simplified dynamic representation treating the evaporator as a single thermal node with uniform temperature distribution, suitable for control design due to its balance between physical fidelity and computational simplicity. The controller uses a wavelet-based neural proportional, integral, derivative (PID) controller with IIR filtering (infinite impulse response). The dynamic model captures the essential heat and mass transfer phenomena through a nonlinear energy balance, where the cooling capacity “Qevap” is expressed as a non-linear function of the compressor frequency and the… More >

Yumeng Li, Fuyong Su^*

Frontiers in Heat and Mass Transfer, Vol.24, No.1, 2026, DOI:10.32604/fhmt.2026.076007 - 28 February 2026

Abstract Based on the Fluent numerical simulation method, this study systematically analyzed the structural parameters of the spiral tube heat exchanger and the influence of the external baffle on its heat transfer performance. The results show that when the equivalent diameter of the spiral tube increased from 16.68 to 21.23 mm, its surface heat transfer coefficient decreased from 22,040 to 17,230 W/m²·K, and the outlet air temperature dropped from 822.3 to 807.3 K. However, the pressure loss decreased from 2.692 to 0.958 kPa. which reveals the contradiction between the heat transfer efficiency and the flow resistance. By More > Graphic Abstract