Open Access
ARTICLE
Hui Sun1,2, Jianwei Zhang1,2, Wenbo Shi1,2, Zhenhao Liu1,2, Jianxin Xu1,2,*, Hua Wang1,2
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.080128
Abstract Uniformity in solid-liquid mixing is a critical aspect for mass and heat transfer efficiency in multiphase reactors. This highlights the necessity for rigorous quantitative approaches capable of resolving spatial heterogeneity across multiple scales. In this work, a coupled discrete element method-volume of fluid (DEM-VOF) framework is employed to simulate the suspension dynamics of 20,000 particles, each 2 mm in diameter, within a liquid medium. To achieve a quantitative and multiscale characterization of three-dimensional particle distributions, Ripley’s L function, rooted in spatial statistics, is introduced and systematically applied. Its validity and robustness are further corroborated through… More >
Open Access
ARTICLE
Jiangbo Wu1,*, Ke Yang1, Qincheng Bi2, Heyao Sun1, Xi Song1
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.079152
Abstract Background: Conjugate heat transfer in supercritical hydrocarbon fuels within microchannels is strongly influenced by sharp thermophysical property variations and chemical reactions, posing significant challenges for accurate numerical prediction. To address this, a high-fidelity solver is developed within the OpenFOAM framework, incorporating detailed reaction mechanisms and demonstrating robust stability under steady supercritical conditions. In particular, to mitigate numerical oscillations and accuracy loss in the pseudo-critical region, a high-order variable-property transport model, based on an eight-segment, seventh-order polynomial formulation, is introduced and integrated in the solver. This model is tightly coupled with the Peng–Robinson equation of state and… More >
Open Access
ARTICLE
Xiaojian You1, Zhen Sun1, Lei Zhang1, Weikun Qian1, Cong Wang1, Weigang Pang1, Hongming Li1, Yingshuang Cui1, Chen Chen1, Yue Wang1, Xiao Wu2,*
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.081350
（This article belongs to the Special Issue: Theoretical Foundations and Applications of Multiphase Flow in Pipeline Engineering)
Abstract Slug flow poses significant dynamic challenges in multiphase pipeline transport, particularly in complex offshore and Floating Liquefied Natural Gas systems, where conventional one- and two-dimensional models fail to capture the intricate three-dimensional interfacial topologies and transient liquid-film dynamics. To overcome this limitation, the present study develops a three-dimensional transient numerical model based on the coupled level-set and volume-of-fluid (CLSVOF) method within a large eddy simulation (LES) framework, and validates it against high-frequency measurements obtained from a double parallel conductance probe experimental platform. The proposed model successfully resolves phase velocity slip and interfacial morphological evolution, predicting More >
Open Access
ARTICLE
Anjie Hu1, Rui Zhao1, Liu Tang2,3,*, Jun Wang2,3, Dong Liu1
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.080001
（This article belongs to the Special Issue: Fluid Mechanics & Thermodynamics in Renewable Energy and HVAC Systems)
Abstract Lithium-ion batteries are widely deployed in electric vehicles, yet their performance and safety are strongly constrained by elevated operating temperatures, which may accelerate degradation and, in extreme cases, trigger thermal runaway. This study numerically investigates the thermal performance of a Tesla valve-based cold plate for battery thermal management, with the aim of enhancing heat dissipation efficiency through multi-parameter collaborative optimization. An initial screening is conducted using orthogonal experimental design to evaluate the effects of shunt angle (30°–50°), number of unit pairs (3–7), channel asymmetry ratio (0–0.5), and branch channel width (2–4 mm) on maximum temperature… More >
Open Access
ARTICLE
Abdul Aabid1,*, Renita Sharon Monis2, Ambareen Khan3, Sher Afghan Khan4, Muneer Baig1
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.076988
（This article belongs to the Special Issue: Analysis of High-Speed Flows using Advanced Computational Methods)
Abstract Separated flow at a blunt base remains a critical topic in both automotive and aerospace engineering, particularly in the context of high-speed and supersonic vehicles such as modern fighter aircraft. In the separated region, characterized by a recirculation zone, the local pressure is typically lower than the ambient back pressure. This reduced base pressure can account for up to 70 percent of the total drag acting on an axisymmetric body. The present study focuses on regulating the base pressure within the recirculation region to reduce base drag and thereby enhance the operational range of rockets,… More >
Open Access
ARTICLE
Xiuli Wang1, Xinshen You1,2, Wei Xu3, Weibin Zhang2, Kehui Zhang1, Yuanyuan Zhao4,*
FDMP-Fluid Dynamics & Materials Processing, DOI:10.32604/fdmp.2026.081863
（This article belongs to the Special Issue: Fluid and Thermal Dynamics in the Development of Unconventional Resources IV)
Abstract Gas binding fault (GBF) represents a critical operating condition in centrifugal pumps, characterized by severe performance degradation due to gas–liquid interactions within the flow passages. To elucidate the underlying mechanisms, this study employs a coupled Lattice Boltzmann Method and Large Eddy Simulation (LBM–LES) framework to analyze the hydro–mechanical-electrical behavior of a centrifugal pump under varying inlet gas volume fractions (IGVF, β). It is shown that, at low gas content (β ≈ 3%), dispersed bubbles primarily accumulate along the blade suction surface and near the impeller outlet. As β increases to 6%, gas structures migrate toward… More >
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