QUAL-2K模型及其主要参数确定  

QUAL-2K Model and Its Main Parameters Determine

作　　者：戴凌全[1] 李华[1] 陈小燕[1] 

机构地区：[1]三峡大学土木水电学院,443002

出　　处：《灾害与防治工程》2009年第2期69-74,共6页Disaster and Control Engineering

摘　　要：分析了描述污染物一维迁移转化模型的基本方程,在此基础上,引入了用于描述水中生化需氧量(BOD)与溶解氧(DO)两者之间关系的S-P模型及其主要的3种改进型:Thomas模型、Oconnor模型及Camp-Dobbins模型,这几种模型都是单一模型,在精度和使用范围上都有一定的局限性。随着计算机技术的发展,水质模型从单一模型发展到集成模型,典型代表为QUAL-2K,探讨了QUAL-2K的基本方程及其主要参数:耗氧系数(K1)、复氧系数(K2)和离散系数(E)在实际应用中的确定方法,并以新安江大坝附近流域为例,对此模型进行了验证,结果表明:该模型能较好的反应实际情况。The fundamental equation of the one dimensional contamination migration and transformation is analyzed. Then the S-P model and its improved types： Thomas model, Oconnor model and Camp-Dobbins model, which are used for describing the relationships between the biochemical oxygen demand（BOD） and the dissolved oxygen（DO） are described. These models are simple model and have some limitations on the precision and range of uses. With the development of the computer technology, the water quality models develop form single use to multiple purposes. A representative of the models is QUAL-2K. The basic equations of QUAL-2K model and the determining methods of the main parameters： oxygen consumption coefficient （K1）, reaeration coefficient （K2）, dispersion coefficient（E） are discussed. The Xinanjiang Dam basin case shows that： the model can fit the practical situation well.

关 键 词：水质模型 污染物 QUAL-2K模型 参数确定 S-P模型 

分 类 号：TQ085[化学工程]