Guest Editors
Prof. Sunny Narayan
Email: s.narayan@tec.mx
Affiliation: Tecnológico de Monterrey, Monterrey, 64849, Mexico
Homepage:
Research Interests: fluid flow, simulations, heat transfer, acoustics, NVH
Dr. Brahim Menacer
Email: menacer_brahim@esgee-oran.dz
Affiliation: Laboratoire des Systèmes Complexe (LSC), Ecole Supérieure en Génie Electrique et Energétique ESGEE Oran, Oran, 31000, Algeria
Homepage:
Research Interests: fluid flow, simulations, heat transfer, engine modelling and internal-combustion engine performance / emissions
Summary
This Special Issue presents recent advances in modeling, simulation, and optimization of fluid flows in machinery and materials processing. Progress in computational fluid dynamics, multiphysics coupling, and data-driven approaches has greatly improved the ability to predict and control transport phenomena that influence performance, safety, and sustainability in modern engineering systems. The Issue focuses on multiphase transport, heat and mass transfer, turbulence, and fluid–structure–material interactions that determine how complex machines and processing technologies operate. Key topics include high-fidelity numerical methods, hybrid experimental and computational techniques, and physics-informed AI models applied to turbomachinery, thermal management systems, lubrication flows, phase-change operations, additive manufacturing, and high-efficiency machine components. Additional attention is given to flow-induced material behavior, transport in porous and heterogeneous media, reactive flow environments, and thermofluid optimization under demanding operating conditions. The goal is to connect fundamental fluid mechanics with engineering practice, enabling improvements in flow control, energy-use reduction, material processing quality, and the digital transformation of machinery design.
Contributions on advanced numerical methods such as CFD, FSI, DEM, LBM, and FEM, as well as multiphysics integration, uncertainty quantification, and physics-informed learning, are encouraged. The Special Issue is intended for mechanical engineers, researchers in computational mechanics, professionals in automotive, aerospace, and manufacturing industries, data-science experts working on machinery, and graduate or doctoral-level researchers. A detailed list of relevant topics is presented in the following:
Topics of Interest Complex Fluid Flow and Transport Phenomena
· Laminar–turbulent transition and turbulence modeling
· Multiphase and multicomponent flows
· Non-Newtonian and viscoelastic fluids
· Flow in porous and heterogeneous media
· Heat and Mass Transfer in Materials Processing
· Conjugate heat transfer
· Phase-change heat transfer
· Thermal transport in solidification and melting
· Reactive heat and mass transfer
· Multiphysics Flow–Material Interaction
· Fluid–structure interaction (FSI)
· Fluid–particle and fluid–granular interaction
· Thermomechanical coupling
· Flow-induced material deformation and failure
· Advanced Numerical Modeling and Simulation
· CFD, FEM, LBM, DEM, and hybrid methods
· Multiscale and multiphysics simulations
· High-order and adaptive numerical schemes
· Uncertainty quantification in flow modeling
· Experimental and Hybrid Experimental–Numerical Methods
· Flow visualization and optical diagnostics
· Validation of numerical flow models
· Data assimilation techniques
· Turbomachinery and Energy Systems
· Pumps, compressors, turbines, and fans
· Cavitation, erosion, and flow-induced vibration
· Thermal management of energy devices
· Additive Manufacturing and Advanced Materials Processing
· Melt-pool dynamics and residual stress prediction
· Multiphase transport in metal AM
· Laser–matter interaction and flow behavior
· Flow Optimization and Control
· Shape and topology optimization under fluid constraints
· Flow control using passive and active techniques
· Energy-efficient thermofluid system design
· AI-Enhanced and Data-Driven Fluid Dynamics
· Physics-informed machine learning (PIML)
· Reduced-order modeling of complex flows
· AI-assisted materials process optimization
· Industrial and Engineering Applications
· Manufacturing and production machinery
· Automotive, aerospace, and biomedical flows
· Chemical and thermal processing equipment
Keywords
fluid dynamics, complex flow, multiphase flow, heat and mass transfer, computational fluid dynamics (CFD), fluid–structure interaction (FSI), non-Newtonian fluids, turbulence modeling, thermofluid systems, materials processing, additive manufacturing, melt-pool dynamics, flow in porous media, phase-change heat transfer, multiphysics simulation, transport phenomena, eeactive flow, flow optimization, physics-informed machine learning, energy-efficient flow systems
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