相关实验视频

Updated: Jul 1, 2025

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Author Spotlight: Optimization of Airflow Velocities in Battery Cooling Systems for Enhanced Thermal Performance and Reduced Energy Consumption

Published on: November 3, 2023

优化悬浮颗粒物传输参数从测量度配置文件的优化,使用新的分析模型

Shaotong Zhang¹, Zixi Zhao¹, Jinran Wu²

¹Frontiers Science Center for Deep Ocean Multispheres and Earth System; Key Lab of Submarine Geosciences and Prospecting Techniques, MOE; College of Marine Geosciences Ocean University of China, Qingdao 266100, China.

|March 5, 2024

概括

本研究引入了一种优化方法,用有限的水度数据来估计沉速度,散率和侵蚀率. 该方法准确地模拟了悬浮沉积物度,有助于预测沿海生态危害.

科学领域:

环境科学环境科学
海洋学海洋学海洋学
流体动力学流体动力学

背景情况:

水体中的悬浮度表明沿海环境健康和生态危害.
悬浮度的准确建模依赖于沉降-扩散方程 (SDE) 的关键参数:沉降速度 (w_s),流扩散率 (D_s) 和侵蚀速率 (p(t)).
从有限的观测中估计这些参数可以显著提高大规模模拟效率.

研究的目的:

开发和验证一种新的优化方法,从有限的度观测中同步估计沉积速度,散率和侵蚀率.
为快速估计沿海环境中关键物质运输参数提供实用工具.
提高3D沿海物质运输模型的准确性.

主要方法:

对于不稳定的场景来说,对一维垂直 (1DV) 沉积-扩散方程 (SDE) 的分析解决方案的推导.
高分辨率测量接近底部悬浮沉积物度 (SSC) 配置文件.
优化关键参数 (p,t,w,s,d) 使用非线性最小平方拟合 (NLSF) 来匹配模拟和观察到的SSC配置文件.

主要成果:

拟议的方法成功地估计了侵蚀率,沉降速度和的扩散性,使用合理的值和独特的组合.
该方法表现出良好的性能,特别是在产生流的初始阶段与大量沉积物再悬浮.
验证是使用来自黄河三角洲沉积物的实验数据在受控水箱环境中进行的.

结论:

开发的优化方法是从稀疏的观测数据中估计关键沉积物运输参数的实用工具.
这种方法可以扩展到悬浮沉积物度以外的其他悬浮颗粒物.
该方法有可能改善用于3D沿海运输模拟的局部参数模型的开发.

关键词:

厄迪的扩散性厄迪的扩散性侵蚀速度侵蚀速度适合非线性最小正方形的最小正方形.定位速度的速度.不稳定的1DV模型黄河三角洲是什么意思黄河三角洲

更多相关视频

VacuSIP, an Improved InEx Method for In Situ Measurement of Particulate and Dissolved Compounds Processed by Active Suspension Feeders

VacuSIP, an Improved InEx Method for In Situ Measurement of Particulate and Dissolved Compounds Processed by Active Suspension Feeders

Published on: August 3, 2016

Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System

Measuring Sub-23 Nanometer Real Driving Particle Number Emissions Using the Portable DownToTen Sampling System

Published on: May 22, 2020

相关概念视频

Typical Model Studies

Typical Model Studies

Fluid mechanics model studies often utilize scaled-down systems to predict fluid behavior in full-scale environments, such as river flows, dam spillways, and structures interacting with open surfaces. Maintaining Froude number similarity in river models is crucial, as it replicates surface flow features like wave patterns and velocities.

Optimizing Chromatographic Separations

Optimizing Chromatographic Separations

Optimizing chromatographic separations is crucial for obtaining clean separations in a minimum amount of time. Optimization is required for several factors, including kinetic effects related to band broadening, plate height, capacity factor, and separation factor.
Band broadening refers to spreading solute bands as they travel through the column. This broadening can impact resolution. Plate height (H) represents the length required for one theoretical plate. A lower plate height corresponds to...