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STEP - eau pluvial
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2 Geometries
2 Meshes
1 Simulation setup
0 Results
2 Geometries 2 Meshes 1 Simulation setup 0 ResultsAbout this project
1. Facility Geometry & Layout Type: Compact industrial building with a deep sub-level (well-type structure). Dimensions: Approximately 4 to 5 meters deep. Internal Structure: Two-level configuration. The ground floor (RDC) and the bottom level are separated by a metal floor grate, allowing free air communication between levels. Access: Vertical access via a fixed ladder. 2. Ventilation Parameters (Existing & Planned) Exhaust System: A high-capacity extraction fan located at the bottom of the structure. Current Flow Rate: 1,000 m³/h (currently operational only when the main door is open). Planned Modification: Install a passive air intake (louver/grille) on the main entrance door at ground level. Proposed Routing: Installation of a vertical duct (pipe) connected to the door intake to deliver fresh air directly to the bottom level (5m deep). Secondary Exhaust: A relief grille/exhaust vent located at the top of the building to facilitate air turnover. 3. Simulation Objectives (CFD Goals) Flow Path Validation: Determine if the fresh air delivered by the pipe effectively "flushes" the bottom corners or if "dead zones" remain. Pressure Differential Analysis: Ensure the 1,000 m³/h fan does not create an excessive vacuum (negative pressure) that would increase radon suction from the soil. Short-Circuit Check: Verify that the fresh air from the pipe is not immediately sucked out by the upper exhaust before reaching the lower level. Gas Dilution: Simulate the displacement of a heavy gas (Radon-222) from the floor level toward the extraction points.
