A5057575281- Fluid Dynamics and Thin Films
- Fluid Dynamics and Heat Transfer
- Surface Modification and Superhydrophobicity
- Heat Transfer and Boiling Studies
- Nanomaterials and Printing Technologies
- Heat Transfer Mechanisms
- Electrohydrodynamics and Fluid Dynamics
- Fluid Dynamics and Turbulent Flows
- Solidification and crystal growth phenomena
- Fluid Dynamics Simulations and Interactions
- Plant Surface Properties and Treatments
- Heat and Mass Transfer in Porous Media
- Heat Transfer and Optimization
- Nanofluid Flow and Heat Transfer
- Advanced Sensor and Energy Harvesting Materials
- Additive Manufacturing Materials and Processes
- Additive Manufacturing and 3D Printing Technologies
- Surfactants and Colloidal Systems
- Gas Dynamics and Kinetic Theory
- Adhesion, Friction, and Surface Interactions
- Innovative Microfluidic and Catalytic Techniques Innovation
- Particle Dynamics in Fluid Flows
- Aerosol Filtration and Electrostatic Precipitation
- Electrospun Nanofibers in Biomedical Applications
- nanoparticles nucleation surface interactions
Technical University of Darmstadt
2016-2025
Technion – Israel Institute of Technology
1993-2002
Friedrich-Alexander-Universität Erlangen-Nürnberg
2000-2002
National Interuniversity Consortium of Materials Science and Technology
2001
University of Bologna
2001
Experiments were conducted to study peculiarities of drop impact onto electrospun polymer nanofiber mats. The cross-sectional diameters the order several hundred nanometers, pore sizes in mats about micrometers, and mat thicknesses 200 microm. Polyacrylonitrile (PAN), a which is partially wettable by water, was used electrospin experiments revealed that nanotextured surfaces produce spreading similar on impermeable surfaces. However, at end stage, contact line pinned receding prevented. At...
Silicon‐based anode materials hold great promise for advancing lithium‐ion battery technology due to their high specific capacity, low voltage platform, abundant resources, and environmental benefits. However, inherent challenges, such as poor electrical conductivity, significant volume expansion, instability of the solid‐electrolyte interphase layer, hinder widespread commercialization. This study addresses these issues using dry particle coating method with nanostructured fumed aluminum...
The Leidenfrost effect is a technically and industrially important phenomenon that severely restricts heat removal from high-heat-flux surfaces. A simple remedy to the provided by polymer nanofiber mats created deposited electrospinning on stainless steel influence of hydrodynamics cooling efficiency single drop impact onto hot surfaces has been investigated experimentally. evolution drops recorded high-speed complimentary metal-oxide semiconductor camera, whereas temperature was measured...
The work describes the experimental and theoretical investigation of water drop impact onto electrospun polymer nanofiber mats deposited on heated stainless-steel foils. measurements encompass spreading over inside mat, as well corresponding thermal field. results show that presence prevents receding motion drops after their complete promotes moisture mat a large area heater, which facilitates tenfold enhancement heat removal latent evaporation.
Ceramic foams in the system Si‐O‐C, possessing different bulk densities and morphologies, were obtained from preceramic polymers using two direct foaming approaches. The electric properties of varied by adding suitable fillers to precursor mixtures amounts up 80 wt%. electrical conductivity was several orders magnitude. effects type filler polymer (methylsiloxane or methylphenylsiloxane resins), as well used precursor, on ceramic investigated.
Surfactant transport plays an important role in many technical processes and industrial applications such as chemical reactors, microfluidics, printing coating technology. High fidelity numerical simulations of two-phase flow phenomena reveal rich insights into the dynamics, heat, mass species transport. In present study, a two-field formulation for surfactant within algebraic volume fluid method is presented. The slight diffuse nature representing interface utilized to track concentration...
Thermocapillary instability is one of the primary causes a spontaneous rupture thin films on heated walls. The film may lead to an appearance uncontrolled dry patches that significantly deteriorate heat and mass transfer. In present paper thermocapillarity-induced flow microstructured wall studied in framework long-wave theory. When or cooled, solution predicts deformation caused by thermocapillarity. linear stability analysis shows walls are less stable disturbances compared flat...
Thermocapillary-induced motion in thin liquid films on a heated horizontal wall with parallel grooves its upper surface is studied experimentally and numerically. The results of velocity temperature measurements are reported. A numerical model for film structured developed. full incompressible Navier–Stokes equations the energy equation integrated by finite difference algorithm, whereas mobile gas-liquid interface tracked volume-of-fluid method. verified comparison experimental data showing...