Simulation Software for Fluids and SolidsSimulation Heat Sink Rod Block
If you want to perform a thermal analysis of cooling a heat sink with rod block you can use the simulation software NOGRID points.
Computer-aided thermal analysis is already widely used today, allowing development cycles for heat dissipation and cooling concepts to be significantly shortened. In this study, the airflow cooling a metallic heat sink made of thin, round rods is simulated. The heat sink is modeled as a thermally conductive solid, enabling it to absorb and release heat. The airflow is a forced flow, such as that generated by fans.
CFD methodology for heat sink rod block simulation
Based on the geometrical model which - either imported from your CAD system or created with our CAD preprocessor COMPASS - you can quickly generate a computational model of a specific geometry (compared to mesh-based methods) and see and evaluate its thermal characteristics in advance.
In this study, heat transfer within the solid is modeled solely by conduction, with ideal thermal contact assumed between the air and the solid. In the air, heat can be transferred by conduction and/or by heat radiation, and convection. Convection refers to heat transport caused by fluid motion. All types of heat transfer mechanisms can also be coupled in the simulation.
In the example shown on the left, the heat sink is cooled by the surrounding air and is modeled as a homogeneous body with internal heat source terms. In the solid heat sink, only heat conduction is computed. Since a solid and a fluid are in contact and exchange heat in this case, the configuation is also referred to as a multi-phase flow.
NOGRID points is ideally suited for the design and analysis of heat transfer applications. It enables accurate prediction of The speed of the temperature front and the cooling/heating rate can be predicted. NOGRID points helps to understand the flow by visualization of the mass, momentum and heat transfer of single and multiple phases. You receive integral quantities which you can use to analyze the heat exchange efficiency.
Capabilities of NOGRID CFD software
NOGRID combines powerful capabilities for handling free-surface flows and moving parts within the computional domain and allows the simulation of any conceivable geometry and operating mode, such as
- fully 3D computation solving the complete Navier-Stokes equations
- easy and intuitive setup, including for FSI (Fluid-Structure Interaction) cases
- freely definable material properties by equations or curves
- evaluation of chemical reactions and corresponding heat source terms
- open or closed domains, including inflow and outflow areas (non-batch mode)
- moving of parts and flexible thermal contact behaviour
Why choose Nogrid?
NOGRID provides professional CFD software for the simulation of fluid flow, heat and mass transfer, and chemical reactions. Its efficient modelling workflow helps engineers analyse flow behaviour, evaluate designs and make informed decisions without creating a conventional volume mesh.
Faster model preparation
With NOGRID, only the geometry boundary needs to be meshed. The finite points inside the fluid domain are generated automatically according to user-defined settings, both at the start of the simulation and during the calculation.
This approach reduces preprocessing effort and makes it easier to prepare complex geometries and cavities for simulation.
Efficient CFD workflow
The modelling process follows four straightforward steps:
Build the geometry. Mesh the boundary. Define the simulation. Start the calculation.
NOGRID is designed to provide short computation times, including for applications involving complex cavities. Engineers can use the resulting data to examine flow distribution and other relevant flow characteristics.
Better insight into fluid-flow processes
CFD solves the fundamental equations governing fluid flow. NOGRID software enables engineers to predict and analyse the behaviour of fluids and related physical processes before or alongside physical testing.
The simulation results can support:
- evaluation and comparison of design alternatives
- optimisation of construction and operating parameters
- improved planning reliability
- reduction of development time and testing effort
- faster progression from design to market or operation
Steps from geometry generation to simulation results
TRAINING
Our two-day training courses teach participants how to set up, run and evaluate simulations efficiently with NOGRID CFD software. The courses include practical guidance for handling different types of simulation cases.
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Technical Support
Professional support is available from the beginning of your work with NOGRID. Our technical team assists users by telephone and email with software operation, case setup and simulation-related questions.
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Simulation Service
When internal time, expertise or resources are limited, NOGRID can support your project with individual numerical simulation services. Our engineers develop and evaluate CFD models based on the specific requirements of your application.
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