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See How Multiphysics Simulation Is Used in Research and Development

Engineers, researchers, and scientists across industries use multiphysics simulation to research and develop innovative product designs and processes. Find inspiration in technical papers and presentations they have presented at the COMSOL Conference. Browse the selection below or use the Quick Search tool to find a specific presentation or filter by application area.

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Transport Phenomenax

Virtual Design of a Four-Bed Molecular Sieve for Exploration

T. Giesy [1], R. Coker [1], J. Knox [1], B. O'Connor [1],
[1] NASA Marshall Space Flight Center, Huntsville, AL, USA

Aboard the International Space Station, carbon dioxide is removed from the atmosphere using a four-bed adsorptive separation process, referred to generally as a 4-Bed Molecular Sieve (4BMS). Experience with the current 4BMS design in space has led to a list of areas for improvement for a ... Read More

A Simple Particle Saltation Model Using Computational Fluid Dynamics

A. Landázuri [1], V. Benavides [1],
[1] Chemical Engineering Department, GICAS Group, Universidad San Francisco de Quito, Quito, Ecuador

A three-dimensional model of particle saltation using computational fluid dynamics (CFD) is presented. This model domain reproduces a flat and irregular terrain with uniform roughness. The domain extends 2 m in X, 0.5 m in Y and 0.5 in Z for both cases. The model includes the motion of ... Read More

Mapping the Limitations of Breakthrough Analysis in Fixed-Bed Adsorption

J. Knox [1],
[1] NASA Marshall Space Flight Center, Huntsville, AL, USA

In a recent publication (Limitations of Breakthrough Curve Analysis in Fixed-Bed Adsorption, Ind. Eng. Chem. Res. 2016, 55, 4734-4748) the authors discussed the a priori prediction of the axial dispersion coefficient from available correlations versus obtaining it and also mass transfer ... Read More

Modeling the Influence of Differential Aeration in Underground Corrosion

R. M. Azoor [1], R. N. Deo [1], N. Birbilis [2], J. K. Kodikara [1],
[1] Department of Civil Engineering, Monash University, Clayton, VIC, Australia
[2] Department of Materials Science and Engineering, Monash University, Clayton, VIC, Australia

A finite element model for underground corrosion is presented. The model is capable of predicting regions experiencing high levels of corrosion due to differential aeration and helps identify "corrosion hotspots" where physical examination of the buried asset is not feasible. ... Read More

Transient CFD Investigation of a Photocatalytic Multi-tube Reactor

S. Denys [1], J. van Walsem [1], J. Roegiers [1], S. Lenaerts [1],
[1] University of Antwerp, Antwerp, Belgium

As in industrial countries, people spend most of their time indoors and the stringent heat-insulation measures in combination with deficient ventilation have a negative impact on indoor air quality, one approach for abating indoor air pollution is the integration or retrofitting of a ... Read More

A Multiscale Model of the Bipolar Electrode - SDS Adsorption on Stainless Steel

Hörmann, Johannes (何约翰) [1], Meng, Yonggang (孟永钢) [1],
[1] State Key Laboratory of Tribology, Tsinghua University, Beijing, China

In solution, sodium dodecyl sulfate (SDS) (structure shown in Fig. 1) can form a boundary film on metal surfaces. Previous studies have extensively investigated the characteristics of such surfactant films experimentally [1][2][3]. A dependency of SDS surface concentration and film ... Read More

Numerical Analysis of the Effect of Surface Active Elements on Marangoni Flow in a Melt Pool

K. Yadav [1], A. Mishra [1],
[1] IIT Kanpur, Kanpur, Uttar Pradesh, India

Marangoni flow affects the heat and mass transfer occurring in the molten metal regions in welding and additive manufacturing processes. It originates from the surface tension gradient (∂γ/∂T) induced at the melt pool surface due to the temperature difference. The flow pattern within ... Read More

Validation of Supercritical Fluid Extraction Model with COMSOL Multiphysics® Software

V. Devi [1], R. Bhargava [1], S. Khanam [1],
[1] Indian Institute of Technology Roorkee, Uttarakhand, India.

This paper shows the solution of mathematical model of supercritical fluid extraction process, given by Sovova H., 1994, through COMSOL Multiphysics® software. Sovova et al., 1994 used this model for the supercritical CO2 extraction of grape seed. Extraction was performed with different ... Read More

Simulation of a Supercritical Fluid Extraction Process Using COMSOL Multiphysics® Software

B. Suryawansi [1], B. Mohanty [1],
[1] Indian Institute of Technology Roorkee, Uttarakhand, India.

In the present work, COMSOL Multiphysics® software was used to solve a mass transfer based mathematical model (Stastova et al., 1996) which is a modified form of Sovova H.,1994 model. The modification has been brought about by introducing the term ‘Grinding efficiency’ in the model and ... Read More

Modeling Darcian and Non-Darcian Porous Media with COMSOL Multiphysics® Software

A. Kumar [1], S. Pramanik [2], M. Mishra [1],
[1] Indian Institute of Technology Ropar, Rupnagar, Punjab, India
[2] Indian Institute of Technology Ropar, Rupnagar, Punjab, India; Nordita, SE-10691, Stockholm, Sweden

Darcian and non-Darcian porous media are characterized by the porosity of medium. To capture miscible viscous fingering in both types of porous media, a new model built with COMSOL® software is presented by coupling of two different physics interfaces (hydrodynamics and transport of ... Read More

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