Radiator Flow Simulator

Radiator Flow Simulator is an advanced engineering and thermal dynamics application designed for heating system planning, hydraulic calculations, and real-time flow simulation. Whether you are an HVAC professional, engineering student, or DIY homeowner, this application provides an intuitive platform to model, analyze, and balance custom hydronic heating circuits. At the core of the simulator lies a precise mathematical solver based on nodal potential methods and hydraulic friction equations. By drawing pipe networks directly on the interactive visual canvas, you can observe the dynamic behavior of heating fluid in real time. The liquid features color-coded temperature visualization shifting seamlessly from hot red to cool blue as heat dissipates through virtual radiators. Adjusting thermostatic valves in real time allows you to immediately monitor mass flow rates, localized pressure drops, and thermal distribution across every radiator in the loop. The application helps identify common heating system bottlenecks, such as unbalanced circuits, starved end radiators, reverse flow scenarios, and excessive pump pressure losses. With support for various pipe materials including copper, PEX, steel, and polypropylene, as well as multiple circuit topologies like single-pipe, double-pipe, and reverse-return layouts, Radiator Flow Simulator turns complex thermodynamic calculations into an accessible visual experience.