Introduction
Sequential multi-physics is a modeling technique in which the simulation results from one solver (referred to as Upstream or Source) are used to drive a simulation with different or additional physics in another solver (referred to as Downstream or Target). A sequentially coupled multi-physics analysis can be used when the coupling between the physical fields in a model is only important in one direction. Stated differently, it is considered that the downstream outcomes have dependency on the upstream outcomes. A common use case is a sequential thermal-stress analysis, where-if thermal expansion is taken into account in a stress analysis, volumetric strain develops; however, the deformations calculated in the stress analysis do not appreciably change the thermal response. In such cases, a pure heat transfer analysis is the run as the upstream simulation. Since the current study does not alter the temperature fields from the upstream, they are predetermined when used for driving the analysis. This approach is a key aspect of Sequential Multi-physics Workflows, enabling efficient and accurate simulations.
Supported Workflows
| Sl.No | Analysis Type | Sequence |
|---|---|---|
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1 |
Sequential Thermal Stress |
FMK → SSU |
I have stated the different types of workflows that can be utilized to do any Sequential Multi-physics Workflows analysis. But let me try to explain with a targeted workflow so that it can be understood with our default sequential simulation capability and the other one with which we try to integrate other simulation roles in our 3DEXPERIENCE Platform.
Structures-Structure Thermal Stress Workflow
Built-in sequentially coupled thermal-stress analyses have been available in the structural apps for many years. This remains the preferred method for Structures-to-Structures sequential thermal-stress when applicable.
The new Sequential Multi-physics Workflows coupled thermal-stress workflow has some advantages and disadvantages as compared to the built-in workflow. Its capabilities will continue to be expanded through further development on upcoming updates.
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Sequentially Coupled Thermal-Stress Analysis (Built-in) is a much simpler workflow than the new Sequential Multi-physics Workflows offering and should be used when applicable. In upcoming blogs, I will discuss the sequential workflow template, how to enable the above-stated workflows, what are all the requirements, etc., with examples.
Stay Connected, Peace!!!!
Some of the 3DEXPERIENCE Roles mentioned in this blog are:
- SSU – Structural Mechanics Engineer
- FMK – Fluid Dynamics Engineer
- IME – Plastics Injection Engineer
The advancements in Sequential Multi-physics Workflows highlight the capabilities of modern simulation tools, enabling seamless integration across diverse engineering domains.
Thank you for Reading!!
