CFD-based design of air wall water blocking for underground garage entrances and exits
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View abstract on PubMed
Summary
This summary is machine-generated.An air wall water-blocking device uses fans to divert water at underground garage entrances, preventing flooding. The study found that fan speed on straight paths significantly impacts water diversion effectiveness.
Area Of Science
- Engineering
- Fluid Dynamics
- Construction Technology
Background
- Underground garage construction faces increasing challenges with water ingress at entrances.
- Effective water management is crucial for maintaining functionality and safety of underground parking facilities.
Purpose Of The Study
- To propose and evaluate an air wall water-blocking device for underground garage entrances.
- To investigate the influence of various parameters on the device's water-blocking performance.
Main Methods
- Computational Fluid Dynamics (CFD) simulations were performed on straight and spiral underground garage entrance models.
- Experimental validation was conducted on a straight road model to verify simulation accuracy.
- Orthogonal experiments were used to analyze the effects of water flow velocity and fan speeds.
Main Results
- CFD simulations and experiments confirmed the feasibility of the air wall concept.
- Inlet water flow velocity and fan speed on straight paths were identified as key factors influencing water blocking.
- Optimal performance was achieved with a straight path fan speed of 25m/s and adjusted curved path fan speeds for flow rates between 2.250-6.786 m/min.
Conclusions
- The air wall water-blocking device is a viable solution for underground garage entrances.
- Prioritizing fan speed on straight paths is recommended for enhancing water blocking efficiency.
- Further optimization of fan speeds can ensure effective water management across varying flow conditions.
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