The Application Gallery features COMSOL Multiphysics® tutorial and demo app files pertinent to the electrical, structural, acoustics, fluid, heat, and chemical disciplines. You can use these examples as a starting point for your own simulation work by downloading the tutorial model or demo app file and its accompanying instructions.

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Heat Transfer Modulex

Action on Structures Exposed to Fire — Thermal Elongation

This entry is a compilation of some examples from DIN EN 1991-1-2 (Actions on structures exposed to fire). Models that are included: 1. Cooling (HT) 2. Heating (HT) 3. Heat transfer through multiple layers (HT) 4. Thermal elongation (SME, thermal stress) 5. Thermal expansion (SME, HT, ... Read More

Thermal Bridges in Building Construction — 2D Composite Structure

This example studies heat transfer in a composite two-dimensional structure. Four materials with distinct thermal conductivities k compose the structure. The top and bottom boundaries are facing environments respectively at 0°C and 20°C. The temperature distribution and the heat flux ... Read More

Heat Transfer Modeling in Cellulosic Material Oxidation

Thermally induced transformations in solids may be modeled by using an Arrhenius law to express the dependence on temperature of the transformation rate. This tutorial model shows how to use the Irreversible Transformation subfeature, available under the Solid feature of the Heat ... Read More

Glazing Influence on Thermal Performances of a Window

During the design of a building, environmental issues have gained considerable influence in the entire project. One of the first concerns is to improve thermal performances. In this process, simulation software are key tools to model thermal losses and performances in the building. The ... Read More

Tutorial model for Local Thermal Non-Equilibrium interface

This tutorial model shows how to use the Local Thermal Non-Equilibrium interface. Read More

Heat and moisture flow past a cylinder

This tutorial demonstrates the use of the Heat and Moisture Flow predefined interface for the modeling of heat transfer and moisture transport in a turbulent air flow, with the quantification of evaporation and condensation on surfaces, and the automatic handling of the associated latent ... Read More

Light Diffusion in a Slab of Particles

This tutorial model shows how to use the Heat Transfer with Radiation in Absorbing-Scattering Media multiphysics interface to model light diffusion through a slab of particles, with the corresponding heating due to absorption and scattering. The numerical results are compared to an ... Read More

Discrete Ordinates Quadrature Sets for Radiation in Absorbing Medium

This model compares quadrature sets used in the method of discrete ordinates. The reference analytical solution of incident irradiation is obtained with 256 discrete directions. Errors in incident irradiation and in energy balance are quantified. Read More

Thermal Bridges In Building Construction — 2D Square Column

This example studies heat transfer in a square column. Cold and hot temperature conditions are applied to the boundaries. Due to the symmetry of the problem, the geometry is simplified to half of the square. The temperature field is compared with the analytic data. This example ... Read More

Thermal Insulation on Internal Boundary

The purpose of this model is to introduce the Thermal Insulation feature available in Heat Transfer interfaces. Thermal Insulation is the default feature for external boundaries. An additional Thermal Insulation node is necessary in order to apply a thermal insulation condition to an ... Read More