FLOW-3D
FLOW-3D is a specialized computational fluid dynamics software providing highly accurate simulations of free-surface flows to help engineers solve complex hydraulic, casting, and additive manufacturing challenges effectively.
PVsyst
PVsyst is a specialized solar design software used by engineers and researchers to accurately simulate, model, and analyze the energy production of photovoltaic systems for various weather conditions.
Quick Comparison
| Feature | FLOW-3D | PVsyst |
|---|---|---|
| Website | flow3d.com | pvsyst.com |
| Pricing Model | Custom | Subscription |
| Starting Price | Custom Pricing | $55/month |
| FREE Trial | ✓ 0 days free trial | ✓ 30 days free trial |
| Free Plan | ✘ No free plan | ✘ No free plan |
| Product Demo | ✓ Request demo here | ✓ Request demo here |
| Deployment | ||
| Integrations | ||
| Target Users | ||
| Target Industries | ||
| Customer Count | 0 | 0 |
| Founded Year | 1980 | 1992 |
| Headquarters | Santa Fe, USA | Satigny, Switzerland |
Overview
FLOW-3D
FLOW-3D gives you a powerful toolset for modeling complex fluid motion with a specific focus on free-surface flows. You can simulate how liquids interact with solid structures, track bubbles or droplets, and analyze thermal effects in high-precision engineering environments. It uses a unique grid-based approach that simplifies your meshing process while maintaining extreme accuracy for moving boundaries and intricate geometries.
You can apply this technology across diverse fields including civil hydraulics, metal casting, and microfluidics. Whether you are designing a dam spillway or optimizing a laser powder bed fusion process, the software provides the physical insights needed to reduce physical prototyping costs. It is designed for professional engineers and researchers who require high-fidelity results for transient, three-dimensional fluid dynamics problems.
PVsyst
PVsyst is a technical modeling tool designed to help you predict the energy yield of solar photovoltaic systems. You can import meteorological data from various sources and define specific system components like modules, inverters, and cabling to create a highly accurate digital twin of your project. The software handles everything from small residential setups to massive utility-scale power plants, providing you with the detailed reports needed for financial planning and technical validation.
You can perform complex shading analysis using a 3D CAD environment to see exactly how nearby objects impact your energy production. It allows you to account for thermal losses, horizon shading, and spectral effects to ensure your simulations match real-world performance. Whether you are an engineer designing a grid-connected system or a researcher studying stand-alone installations, you get the precision required for bankable solar energy assessments.
Overview
FLOW-3D Features
- TruVOF Tracking Track the interface between liquids and gases with industry-leading precision to see exactly how your fluid behaves.
- FAVOR™ Meshing Define complex geometric shapes within a simple rectangular grid to save hours of manual meshing time while maintaining accuracy.
- Multi-Physics Suite Combine fluid flow with heat transfer, phase change, and surface tension to simulate realistic environmental and industrial conditions.
- Sediment Transport Predict how sand and silt will erode or deposit in hydraulic structures to ensure long-term infrastructure stability.
- Fluid-Structure Interaction Model how your solid parts deform or move in response to fluid pressure to prevent structural failures.
- High-Performance Computing Run massive simulations across multiple processors to get your results faster and meet tight project deadlines.
PVsyst Features
- System Simulation. Model your entire PV system by defining modules, inverters, and strings to calculate hourly energy distribution and losses.
- 3D Shading Tool. Build a 3D representation of your installation site to visualize and calculate the impact of shadows on your panels.
- Meteo Data Management. Import weather data from Meteonorm, NASA, or your own sensors to simulate performance under specific local climate conditions.
- Grid-Connected Modeling. Design large-scale solar farms and calculate the injected energy while accounting for grid limitations and ohmic losses.
- P50/P90 Analysis. Evaluate the financial risk of your project by generating probability reports that show expected yields under different scenarios.
- Bifacial Modeling. Calculate the additional energy gain from bifacial modules by simulating ground reflections and back-side irradiance accurately.
- Pumping & Stand-alone. Design off-grid systems and solar water pumping stations with specialized tools for battery storage and hydraulic needs.
- Detailed Loss Tree. Identify exactly where you are losing energy with a comprehensive breakdown of thermal, wiring, and mismatch losses.
Pricing Comparison
FLOW-3D Pricing
PVsyst Pricing
- Full simulation capabilities
- Unlimited project modeling
- Access to PV component database
- 3D shading analysis
- Technical support included
- Software updates for one year
- Everything in Professional, plus:
- Discounted rate for educational use
- Restricted to non-commercial research
- Full feature set access
- Annual renewal required
Pros & Cons
FLOW-3D
Pros
- Unmatched accuracy for free-surface and splashing liquid simulations
- Faster setup times due to the rectangular meshing approach
- Excellent technical support from highly specialized fluid dynamics experts
- Robust physics models for specialized metal casting processes
Cons
- Significant hardware requirements for high-resolution 3D simulations
- Steep learning curve for users new to CFD
- High entry cost compared to general-purpose simulation tools
PVsyst
Pros
- Industry standard for bankable solar energy reports
- Extensive database of global solar modules and inverters
- Highly accurate shading and loss calculations
- Regular updates to include new solar technologies
- Detailed PDF reports ready for project investors
Cons
- Interface feels dated compared to modern web apps
- Steep learning curve for non-technical users
- Requires Windows environment or virtual machine
- 3D CAD tool can be difficult to master