首页> 外文会议>IEEE Workshop on Environmental, Energy and Structural Monitoring Systems >Physical modelling of buoyant effluents discharged into a cross flow
【24h】

Physical modelling of buoyant effluents discharged into a cross flow

机译:浮力流出物的物理建模排放成十字流量

获取原文
获取外文期刊封面目录资料

摘要

This study focuses on physical modelling of turbulent vertical buoyant jets, discharged into a transversal current and interacting with localized background turbulence. The physical model was developed in the Coastal Engineering Laboratory of the Technical University of Bari. The physical model consists of a sophisticated system that allows to monitor and adjust all the characteristic parameters of both the channel flow (e.g. discharge, flow depth) and the buoyant jets (e.g. flow rate, temperature, salinity). Positively and negatively buoyant jets are realized by discharging water respectively at a temperature and salinity higher than that of the receiving environment. Due to the complexity of the jet-current hydrodynamic phenomena, a set of sophisticated instruments to measure the jet spreading within the cross flow is used. The average jet dilution is measured by (i) four different Resistance Temperature Detectors (RTD) for the positively buoyant jet, and (ii) a MicroScale Conductivity Temperature Instrument (MSCTI) of high resolution for the negatively buoyant jet. Whereas, a Nortek Acoustic Doppler Velocimeter (ADV) system is used to measure the field flow velocities, together with CollectV software for data acquisition and ExploreV software for data analysis. The measured scalar and vector fields will be illustrated in this paper, with the aim to emphasize that a well- set physical model is able to explain the behavior of buoyant jets in an open channel with ambient factors, such as cross flow and vegetation.
机译:本研究侧重于湍流垂直浮动喷射的物理建模,排入横向电流并与局部背景湍流相互作用。物理模型是在巴里沿海工程实验室开发的。物理模型由复杂的系统组成,允许监控和调整通道流(例如放电,流动深度)和浮动喷射器(例如流速,温度,盐度)的所有特征参数。通过分别在高于接收环境的温度和盐度下排出水来实现正极和负浮动射流。由于喷射电流流体动力现象的复杂性,使用了一组用于测量交叉流内的射流扩散的复杂仪器。通过(i)四种不同的电阻温度检测器(RTD)测量平均射流稀释,用于正浮动射流,(ii)用于负浮力射流的高分辨率的微观电导率温度仪器(MSCTI)。鉴于NORTEK声学多普勒速度计(ADV)系统用于测量现场流速,以及用于数据采集和EXPROREV软件的COLLORV软件,用于数据分析。在本文中将说明测量的标量和矢量字段,目的是强调一个良好的物理模型能够解释具有环境因素的开放通道中浮动喷射的行为,例如交叉流动和植被。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号