WinTherm Lite offers complete thermal analysis to small companies. By simulating the complete heat transfer of a system (radiation, conduction, convection), WinTherm Lite answers questions regarding thermal design and heat management. To use the software, you input a surface mesh of your geometry, assign heat inputs and boundary conditions through the graphical user interface, and specify steady-state or transient analysis. WinTherm Lite takes it from there, and calculates the temperature for all surfaces and fluids in the system. Your mesh geometry is limited in resolution to 2,500 thermal nodes. This does not limit the physical size of the system you wish to model, but rather limits the number of elements—points—used to represent the thermal system. 

WinTherm Lite utilizes the same state-of-the-art technology found in our RadTherm and WinTherm modeling tools: a voxel-based ray tracer determines which elements can "see" each other to exchange radiation; planar conduction models predict heat transfer across and through a surface; and the convection library automatically determines convection rates.

You can get started with WinTherm now by following our step-by-step guide, and viewing tutorial videos.

The intuitive arrangement of the user interface permits both novice and expert users to set up and analyze thermal systems with a minimum of user input. WinTherm is divided into four distinct segments to guide the user through the solution procedure: Geometry, Editor, Analyze, and Post Processor. Several tutorials included with the software will familiarize the user with the simple but thorough modeling procedure. WinTherm 9.0 Flyer 200 KB

KEY FEATURES
Complete Thermal Analysis

• Radiation—automatic calculation of view factors using a very fast algorithm.  Adjustable view factor regulates the accuracy versus speed of the radiation ray-tracing algorithm.
• Conduction—automatic conduction linkages.
• Convection—edit convection curves in the curve editor.

Easy to Use

• All model attributes are entered interactively through the Graphical User Interface

• Editable material and surface database
  - surface condition: thermal emissivity, solar absorptivity
  - material properties: conductivity, density, specific heat

• Boundary conditions are applied directly to the geometry
  - assign temperatures
  - impose heat rates as curves or values
  - assign fluid temperatures/ convection coefficients
    as values or curves
  - curves can be created with curve editor or imported

• Extensive model manipulation
  - create, edit, or import geometry
  - built-in diagnostics and limited mesh repair
  - models can be pieced together, "parted ou,t, or even replaced

Fast and Accurate

• Surface Mesh—time consuming volume mesh not needed
• Extremely fast and accurate thermal solution. Surface temperatures are initialized with a steady-state solution, and then the simulation proceeds through time with a transient solution over the designated prediction time.
• Physical temperature of the model's surface is displayed on the meshed geometry as a thermal image during the solution process. The image can be rotated and viewed at any direction throughout the thermal prediction simulation.
• Specialized part types such as 3-layer elements and highly conductive parts allow modeling of complex situations.
• State-of-the-art voxel-based ray tracer that uses spatial subdivision to achieve fast view factor solutions.

Platform

Platforms Windows 95 through Windows XP.

Extensive geometry import formats:

• Patran Neutral (NTL)
• Wavefront (OBJ)
• Stereolithography (STL)
• AutoCAD (DXF)
• Rhino3D (3DM)
• Nastran