Thermal transfer software

To account for natural convection, simply select the Gravity check box. Pressure work and viscous dissipation can also be activated to affect the temperature distribution.

The temperature transition at the fluid—solid interface is automatically handled using continuity, wall functions, or automatic wall treatment, depending on the flow model. To simulate phase change phenomena in heat transfer analyses, the Heat Transfer Module provides two methods. The Phase Change Material feature implements the apparent heat capacity formulation and accounts for enthalpy of phase change and changes in material properties.

Alternatively, the Phase Change Interface feature models phase change following the Stefan energy balance condition to compute the velocity of the interface between two phases that may have different densities. Combined with deformed geometry, this approach is very efficient and effective when there is no topology change.

Heat and moisture transport requires extensive multiphysics capabilities to couple heat transfer with moisture flow, moisture transport in building materials, moist air, and hygroscopic porous media. To study these effects, the Heat Transfer Module includes settings for modeling moisture transport in air and moist porous media coupled with nonisothermal flow.

There are tools to analyze water condensation and evaporation on surfaces, and additional features to analyze heat and moisture storage, latent heat effects, as well as diffusion and transport of moisture. Features are available for computing the heat transfer rate and temperature distributions in a thermal network.

The Lumped Thermal System interface supports lumped features such as thermal resistors, heat rate, and thermal mass. The software solves an energy conservation equation using the temperatures and heat rates as dependent variables. The Heat Transfer Module uses the radiosity method to model surface-to-surface radiation on diffuse surfaces, mixed diffuse-specular surfaces, and semitransparent layers.

These are available in 2D and 3D geometries, and in 2D axisymmetric geometries when modeling diffuse surfaces. The surface and ambient properties may depend on temperature, radiation wavelength, incidence angle, or any other quantity in the model. Transparency properties can also be defined per spectral band and an arbitrary number of spectral bands is supported.

Predefined settings are available for solar and ambient radiation, where the surface absorptivity for short wavelengths the solar spectral band may differ from the surface emissivity for the longer wavelengths the ambient spectral band. In addition, the sun radiation direction can be defined from the geographical position and time. The view factors are computed using the hemicube, the ray-shooting, or direct integration area method.

For computationally effective simulations, it is possible to define planes or sectors of symmetry. When combined with a moving frame, the surface-to-surface radiation interface automatically updates the view factors as the geometrical configuration deforms. With the Heat Transfer Module, you have the tools to simulate many types of radiation in semitransparent media: participating media, absorbing and scattering media, and beams in absorbing media.

For radiation in participating media, use the Rosseland approximation, P1 approximation, or discrete ordinate method DOM. For radiation in absorbing and scattering media, use the P1 approximation and DOM to, for example, model light diffusion in a nonemitting medium.

Lastly, you can model a radiative beam in absorbing media using the Beer—Lambert law, and couple the effect with other forms of heat transfer. For heat transfer in thin layers, the Heat Transfer Module provides individual layer models and layered material technology, to investigate heat transfer in layers that are geometrically much smaller than the rest of a model.

This functionality is available for thin layers, shells, thin films, and fractures. For individual layers, the thermally thin layer model is used for highly conductive materials with heat transfer tangential to the layer and negligible temperature difference on either side of the layer. Within the radiation solver, material parameters and interaction effects such as specular and diffuse reflection, transmission and absorption can be treated in a physically correct manner as a function of wavelength.

Major effects covered by the short-wave radiation solver include:. The long-wave range is used to model intra-model thermal radiation energy exchange based on the current part temperature.

Depending on the temperature, this type of thermal radiation can reach into the visible spectrum but is usually maximal in the non-visible, deep infrared range. The intra-model radiative exchange is modelled in a highly efficient manner using view factors calculated between all the surfaces of the finite element mesh.

Toggle navigation. Customer Login. Apart from that, there is really no need to create an account to use this website. Remember Me. Log in. Not registered yet? Create an account Forgot your username? Forgot your password? Heat Conduction multi-layered composite shell elements solid elements connectivity elements and thermal contact definitions temperature-dependent material properties anisotropic heat conduction internal heat generation phase-changes.

Thermal Radiation models for solar radiation and all sorts of other sources of light and thermal radiation material properties depending on wavelength and angle of incidence intra-model surface-to-surface radiation considers absorption, reflection and transmission as well as refraction diffuse and specular reflection tool for generating representative solar and cloudiness environmental data for any place and time on earth.

Different types of thermal boundary conditions can be applied such as: heat exchange by convection at surfaces thermal radiation between surfaces and external solar loads direct spatial contact of surface areas various types of heat sources and sinks coupling of component part temperatures to adjacent air Most boundary conditions can be time-dependent or temperature-dependent.

Cloud-based simulation software from SimScale. Many materials and products have temperature-dependent characteristics; this makes analyzing the impact of heat and ensuring thermal management of structures and fluids crucial in product development.

The SimScale cloud-based simulation software platform allows you to predict the airflow, temperature distribution, and heat transfer. The thermal analysis software takes into account the energy balance of the system.

When investigating thermomechanical components, the effects of thermal loads on solids can also be included. For many industrial applications, simulating the stress response to thermal loads and understanding failure is essential.

Applications include polymeric materials , valves , pipes , basket strainers , PCB , pressure vessels and more. The thermal analysis software parameters are determined by the type of fluid convection such as natural, mixed or forced convection. Some of the areas in which it can be used are heat sink design, electronics cooling , heat exchangers, automotive thermal management, nuclear reactors, and beer brewing. Conduction refers to a heat transfer between substances that are in direct contact with each other.

In theory, heat energy passes from the hot to the cold end of the substance and is directly related to the conductivity of the material. The SimScale thermal simulation software offers a module for various types of applications where heat and energy are significant study parameters. You can simulate conduction between different materials and can also model temperature-dependent conductivity.

Examples include car brakes , heat sinks , aluminum casing , worm gearboxes , and more. Convection also known as convective heat transfer refers to the transfer of heat between two areas, through the movement of fluids. Common in liquids and gases, it occurs when fluid molecules absorb heat and change density, leading to convection currents.

The applications of convection are numerous and include LED heat sinks, light bulbs, electronics cooling , refrigerators or indoor cooling.

Radiative heat transfer, or radiation is the transfer of heat through electromagnetic waves. In product design, radiation usually starts to play a role in high temperatures.