Nội dung được dịch bởi AI, chỉ mang tính chất tham khảo
Tác động của cách bố trí lối vào quảng trường đô thị đến thông gió không gian dưới các điều kiện xây dựng xung quanh khác nhau
Tóm tắt
Thông gió hiệu quả cho quảng trường đô thị là rất quan trọng cho sự thoải mái và sức khỏe của cư dân. Nghiên cứu này nhằm thiết lập một số nguyên tắc thiết kế lối vào đường phố để tối ưu hóa thông gió quảng trường đô thị. Sử dụng các kỹ thuật mô phỏng động lực học chất lỏng tính toán (CFD), hai loại quảng trường lối vào đường phố (hai điểm giao cắt và bốn điểm giao cắt) đã được nghiên cứu dưới tác động của các tòa nhà xung quanh. Ba chỉ số - tốc độ trung bình không gian (), tỷ lệ thay đổi không khí (ACH) và lưu lượng trung bình (
) qua lối vào đường phố và mái quảng trường - đã được tính toán để định lượng hiệu suất thông gió của quảng trường. Kết quả mô phỏng cho thấy rằng các tòa nhà xung quanh có thể ảnh hưởng đến thông gió trong không gian quảng trường. Khi điều kiện xây dựng xung quanh thay đổi với tỷ lệ che phủ tòa nhà là 0.25, lưu lượngđi vào qua lối vào đường phố có thể giảm đến 35%, và tốc độtrong quảng trường giảm hơn 45%. Thiết kế bố trí lối vào đường phố tối ưu phụ thuộc rất lớn vào hướng gió. Khi hướng gió vuông góc với lối vào quảng trường, cách bố trí lối vào chéo góc của quảng trường cho thấy hiệu suất thông gió tốt hơn so với các thiết kế khác. Khi hướng gió chéo với lối vào quảng trường, giảm mạnh (lên đến 68%), và thiết kế bố trí lối vào bên cho thấy hiệu suất thông gió tốt nhất.
Từ khóa
#thông gió đô thị #quảng trường đô thị #mô phỏng CFD #thiết kế lối vào đường phố #hiệu suất thông gióTài liệu tham khảo
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