长江科学院院报2024，Vol.41Issue(3)：22-29,8.DOI:10.11988/ckyyb.20221405
浮球覆盖下水面能量平衡再建与蒸发模型研究
Reconstruction of Water Surface Energy Balance and Evaporation Model under Floating Ball Coverage
摘要
Abstract
To address the issue of low water resource utilization caused by intense evaporation in plain reservoirs in arid regions,we have chosen black high-density polyethylene floating balls as a means to combat evaporation and promote water conservation.This study examines the response mechanism of water surface evaporation and the distri-bution of water energy balance components under floating ball coverage throughout the non-freezing period using theoretical analysis,modeling,and outdoor experiments.On this basis,we developed a calculation model of water sur-face evaporation.Our results indicate that,when compared to uncovered water surfaces,the overall net radiation ab-sorption rate decreases by approximately 12.6％under a 73％floating ball coverage.The average monthly latent heat flux required for evaporation decreases by 61.8％to approximately 148.73 W/m2.The sensible heat flux and heat storage flux of water body also experience significant changes.By accounting for modifications in energy and aerody-namic terms,our model for calculating surface evaporation under covered conditions demonstrates high precision.关键词
浮球/节水材料/能量平衡/蒸发模型/水资源利用率Key words
floating ball/water-saving materials/energy balance/evaporation model/utilization efficiency of water resource分类
建筑与水利引用本文复制引用
徐思远,严新军,王海涛,侍克斌..浮球覆盖下水面能量平衡再建与蒸发模型研究[J].长江科学院院报,2024,41(3):22-29,8.基金项目
国家自然科学基金项目(51968071) （51968071）
新疆维吾尔自治区"水利工程"重点学科研究项目(SLXK2019-04) （SLXK2019-04）
