Physics Engine

The Ultimate Engineering Sandbox

The Velnode is more than a canvas; it is a Real-Time Physics & Logic Engine. It transforms static P&ID symbols into "Living Components" that interact with one another exactly as they would in a physical plant.

Many educational platforms use "logical" engines—if a switch is flipped, a tank fills up at a fixed rate. Velnode goes exponentially deeper. It relies on a deterministic mathematical engine that calculates real-world industrial physics, transforming a simple web browser into a rigorous engineering validation tool.

1. The Component Intelligence Layer

Every item you drag onto the canvas is a Smart Object. Unlike a standard drawing tool where a valve is just a shape, in Velnode:

• Physics-Aware: A pump knows its head-flow curve; a tank understands its volume and hydrostatic pressure; a valve calculates its Cv (flow coefficient) in real-time.
• Dynamic States: Components aren’t just "on" or "off." You can visualize a valve at 34% open and see the immediate downstream pressure drop on a digital gauge.
• Custom Parameterization: You can click on any component to edit its technical specs—changing a pipe’s diameter or a pump’s RPM—to see how those variables affect the entire system.

2. Sophisticated Simulation Complexity

The Builder is designed to handle everything from fundamental fluid mechanics to advanced industrial processing:

• Basic Control Loops: Easily configure a Level Control Loop where a sensor talks to a controller to modulate a discharge valve.
• Integrated Separation Trains: Build complex, multi-phase systems. Simulate the separation of oil, gas, and water in a 3-phase vessel, managing the interface levels and gas back-pressure simultaneously.
• Discrete & Continuous Events: Whether you are modeling the steady flow of liquid or the "stop-start" logic of a bottling line, the canvas handles both simulation paradigms seamlessly.

3. The "Hardware-in-the-Loop" Bridge

This is where the Process Builder separates itself from a mere educational game. It acts as a middleware for automation:

• PLC Integration: You can map the "virtual" terminals of your canvas components to real-world PLC registers (like a Siemens S7-1200).
• OPC-UA & Modbus Ready: The logic you build on the screen can be driven by—or drive—external hardware, making it a perfect environment for testing industrial code before deployment.
• SCADA-Like Visualization: While you build in a P&ID style, the simulation runs with high-fidelity animations, providing a SCADA-like interface for monitoring the health of your process.

What’s Under the Hood?

• Modular Canvas: An infinite workspace using a grid-snap system for precise, professional-grade layouts.
• Real-Time SSE Data: Uses Server-Sent Events to ensure that every pressure change or motor start is reflected on your screen with zero lag.
• Validation Engine: Automatically checks for "broken" logic—such as a pump with no suction source—before you hit the 'Run' button.

The Physics Engine is the invisible bedrock that makes Velnode a professional engineering tool rather than a video game. It guarantees that the designs you validate in the cloud are completely bound by the physical realities they will face on the ground. It is the difference between an animation that looks right, and a simulation that is mathematically true.

We built this tool to eliminate "The Cost of Error." In the real world, a wrongly configured separator or a misinterpreted control loop can cost thousands in equipment damage or safety risks. In Velnode, the "Cost of Error" is zero. You are free to fail, iterate, and optimize until your process is perfect.

If you can dream the process, you can build the loop. If you can build the loop, you can master the system.