Cadence Celsius
Cadence Celsius is a thermal simulation software providing high-performance electronic cooling analysis and electro-thermal co-simulation to ensure reliability in complex integrated circuits and electronic systems.
SimFlow
SimFlow is a comprehensive computational fluid dynamics software that provides an OpenFOAM-based GUI for simulating complex fluid flows, heat transfer, and multiphase interactions across engineering disciplines.
Quick Comparison
| Feature | Cadence Celsius | SimFlow |
|---|---|---|
| Website | cadence.com | sim-flow.com |
| Pricing Model | Custom | Freemium |
| Starting Price | Custom Pricing | Free |
| FREE Trial | ✘ No free trial | ✘ No free trial |
| Free Plan | ✘ No free plan | ✓ Has free plan |
| Product Demo | ✓ Request demo here | ✓ Request demo here |
| Deployment | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 1988 | 2013 |
| Headquarters | San Jose, USA | Warsaw, Poland |
Overview
Cadence Celsius
Cadence Celsius provides you with a unified platform to tackle the most difficult thermal challenges in modern electronic design. You can perform detailed thermal analysis for everything from individual integrated circuits to entire electronic enclosures. By combining finite element analysis with computational fluid dynamics, the software allows you to detect potential hotspots and mechanical stress issues early in your design cycle.
You can seamlessly integrate thermal analysis with your existing electrical power integrity workflows to see how heat affects performance in real-time. This approach helps you reduce the need for expensive physical prototypes and prevents late-stage design failures. It is specifically built for engineering teams working on high-performance computing, automotive electronics, and advanced mobile devices where heat management is critical for product longevity.
SimFlow
SimFlow is a powerful computational fluid dynamics (CFD) platform that brings the capabilities of OpenFOAM to a user-friendly graphical interface. You can handle complex engineering challenges including compressible and incompressible flows, heat transfer, and chemical reactions without writing code. It allows you to import geometry directly from CAD software, create high-quality meshes, and monitor simulations in real-time to ensure accuracy and efficiency.
Whether you are designing automotive components or optimizing HVAC systems, the platform provides the tools to visualize flow patterns and pressure distributions effectively. You can run simulations on your local machine or scale up to high-performance computing clusters for massive datasets. It is designed for engineering professionals and researchers who need the precision of open-source solvers combined with the speed of a modern, intuitive workflow.
Overview
Cadence Celsius Features
- Electro-Thermal Co-Simulation Analyze how electrical current and thermal gradients interact simultaneously to ensure your power delivery remains stable under heat.
- Massively Parallel Execution Solve massive simulation grids up to ten times faster by distributing workloads across thousands of CPU cores without losing accuracy.
- Unified FEA and CFD Combine solid-body heat conduction and fluid flow analysis in one tool to simulate both chips and cooling fans.
- Automated Mesh Generation Generate complex simulation meshes automatically for irregular geometries, saving you hours of manual setup time for complicated PCB layouts.
- Transient Thermal Analysis Track how temperatures change over time during different power cycles to identify risks during peak performance bursts.
- In-Design Integration Connect directly with Allegro and Virtuoso platforms so you can run thermal checks without leaving your primary design environment.
SimFlow Features
- Mesh Generation. Create high-quality hex-dominant meshes automatically for complex geometries using the integrated snappyHexMesh and cfMesh tools.
- Multiphase Flow. Simulate interactions between different fluids, such as water and air, to predict cavitation, splashing, or free-surface movements.
- Heat Transfer. Analyze conduction, convection, and radiation within your designs to optimize cooling systems and thermal management strategies.
- Real-time Monitoring. Track residuals and physical quantities during the calculation process to catch errors early and save valuable computing time.
- Parallel Processing. Speed up your simulations by distributing the workload across multiple CPU cores with seamless MPI support.
- Post-processing. Visualize your results with integrated ParaView support to create stunning animations and detailed vector plots of fluid behavior.
Pricing Comparison
Cadence Celsius Pricing
SimFlow Pricing
- Limit of 200,000 nodes
- All physical models included
- Parallel processing support
- Standard mesh tools
- Community support access
- Everything in Free, plus:
- Unlimited mesh nodes
- Priority technical support
- Perpetual license options
- Advanced geometry handling
- Full cluster compatibility
Pros & Cons
Cadence Celsius
Pros
- Unmatched simulation speed for large-scale electronic systems
- Seamless integration with industry-standard Cadence design tools
- Highly accurate results for complex 3D-IC structures
- Reduces reliance on costly physical thermal prototyping
Cons
- Significant learning curve for non-simulation specialists
- High hardware requirements for massive parallel processing
- Enterprise-level pricing is out of reach for hobbyists
SimFlow
Pros
- Intuitive GUI makes OpenFOAM accessible to beginners
- Excellent mesh generation capabilities for complex parts
- Free version is highly functional for small projects
- Supports a wide range of physical solvers
- Regular updates keep the software stable and modern
Cons
- Commercial licenses require a custom quote
- Learning curve remains steep for CFD theory
- Hardware requirements are high for large meshes