A5069290298- Fluid Dynamics and Heat Transfer
- Surface Modification and Superhydrophobicity
- Additive Manufacturing and 3D Printing Technologies
- Particle Dynamics in Fluid Flows
- Nanomaterials and Printing Technologies
- Electrohydrodynamics and Fluid Dynamics
- Phase Change Materials Research
- Additive Manufacturing Materials and Processes
- Thermal and Kinetic Analysis
- Adhesion, Friction, and Surface Interactions
- 3D Printing in Biomedical Research
- Innovative Microfluidic and Catalytic Techniques Innovation
- Liquid Crystal Research Advancements
- 3D Shape Modeling and Analysis
- Fluid Dynamics and Thin Films
- Crystallization and Solubility Studies
- Icing and De-icing Technologies
- Advanced Battery Materials and Technologies
- Thermodynamic properties of mixtures
- Rheology and Fluid Dynamics Studies
- Injection Molding Process and Properties
- Adsorption and Cooling Systems
Fraunhofer Chalmers Research Centre for Industrial Mathematics
2018-2024
Chalmers University of Technology
2020
3D bioprinting with cell containing bioinks show great promise in the biofabrication of patient specific tissue constructs. To fulfil multiple requirements a bioink, wide range materials and bioink composition are being developed evaluated regard to viability, mechanical performance printability. It is essential that printability printing fidelity not neglected since failure targeted architecture may be catastrophic for survival cells consequently function printed tissue. However,...
Utilizing energy storage technologies is beneficial for bridging the gap between supply and demand of increasing share renewable in system. Phase change materials (PCMs) offer higher density compact design compared to conventional sensible heat materials. Over past years, poly(ethylene glycol) (PEG) has gained attention PCM field, several new composites PEGs have been developed thermal purposes. PCMs are investigated at a given heating/cooling rate evaluate their phase temperature enthalpy....
We propose a comprehensive immersed boundary-based dynamic contact angle framework capable of handling arbitrary surfaces mixed wettabilities in three dimensions. study number models and implement them as boundary condition for the Continuum Surface Force method. Special care is taken to capture hysteresis by using separate advancing receding lines. The able account varying wettability making dependent on local condition. validate our cases where glycerol droplets impact solid at low Weber...
Droplets coalesce and jump from superhydrophobic surfaces, a result that stems the dominance of capillary inertial forces presence high contact angles. This phenomenon has been subject intensive numerical research mostly for cases when degree hydrophobicity is described by single contact-angle value (a static angle). The introduction various degrees hysteresis complicates modeling jumping process due to sensitivity results effective angle. We have developed validated comprehensive...
We report here multiphase direct numerical simulations of a recently discovered passive mechanism self-cleaning on superhydrophobic surfaces. The removal contaminants is governed by coalescence single droplet with particle micrometer size, where the initiates spontaneous spreading and drives particle–droplet jumping. use an in-house volume fluid–immersed boundary framework, introduce thoroughly analyze capillary forces at contact line, validate our in relation to previous experimental...
Abstract Selective laser melting (SLM) process is a powder bed fusion additive manufacturing that finds applications in aerospace and medical industries for its ability to produce complex geometry parts. As the raw material used form, particle size distribution (PSD) significant characteristic influences build quality turn affecting functionality esthetic aspects of product. This article investigates effect PSD on printed 316L stainless steel pow der, where three coupled in-house simulation...
Abstract We develop a numerical framework for simulating the coalescence and jumping of microdroplets on superhydrophobic surfaces. The combines volume fluid (VOF) method with models advancing receding contact angles number demonstrate temporal spatial convergence show agreement between our results other experimental studies. capillary‐inertial scaling is investigated together existence cut‐off behaviour frequently observed in lower size‐range that regime. investigate findings some previous...
A framework is presented and demonstrated in which extrusion laydown of viscoelastic fluids can be simulated. Examples include application seam sealing adhesive material, additive manufacturing processes. state the art fluid flow solver used to solve equations various rheological constitutive models are supported, such as shear thinning viscosity or more complex stress models. With connection robot path planning software product preparation phase improve quality, reduce material consumption...
Purpose The purpose of this study is to propose a novel simulation framework and show that it captures the main effects deposition process, such as droplet shape, volume speed. Design/methodology/approach In framework, time-dependent flow fluid-structure interaction between suspension, moving piston deflection jetting head simulated. system modelled two-phase with surrounding air being one phase dense suspension other. non-Newtonian mixed single properties determined from material testing....
Abstract Selective laser melting process is a powder bed fusion additive manufacturing that finds applications in aerospace and medical industries for its ability to produce complex geometry parts. As the raw material used form, particle size distribution (PSD) significant characteristic influences build quality turn affecting functionality aesthetics aspects of end product. This paper investigates effect PSD on deformation 316L stainless steel powder, where three coupled in-house simulation...