仪器网

欢迎您: 免费注册 仪器双拼网址:www.yiqi.com
首页-资讯-资料-产品-求购-招标-品牌-展会-行业应用-社区-供应商手机版
官方微信
中国仪器网• 行业应用
应用首页 解决方案 行业标准
应用
  • 产品
  • 企业
  • 品牌
  • 资料
  • 问答
仪器网/ 行业应用/ 解决方案/ 壁面湍流边界层压力起伏的高速层析PIV（Tomo-PIV）和直接

壁面湍流边界层压力起伏的高速层析PIV（Tomo-PIV）和直接

点击这里给我发消息
内容节点
概述
实验/设备条件
样品提取
实验/操作方法
实验结果/结论
仪器/耗材清单
In the present study it is attempted to use the 3D time-resolved velocity field measurements
obtained by employing a high-speed tomographic PIV system on a flat plate turbulent boundary layer at
Re=730. The main objective of the study is the estimation of the wall pressure coherence function for the
prediction of aeroacoustic noise radiated by boundary layers and trai领 edge flows. The reconstruction of
the pressure field from velocity field measurements follows the approach of de Kat and van Oudheusden
(2012), whereby the Poisson equation is integrated over the measurement volume in 3D. Due to restriction
on the extent of the measurement volume, uniform pressure is applied as boundary condition on stream- and
spanwise faces.
A direct numerical simulation of the boundary layer at a similar Reynolds number is performed in order to
produce reference data for the velocity statistics and for the properties of the spectral fluctuations. The
tomographic data agree very well with DNS as far as mean and fluctuating velocity components are
concerned.
Velocity field results are compared to 2C-PIV and the DNS solution and a collapse of the data is
demonstrated. An additional reference measurement is introduced in order to validate the procedure of
pressure determination from time-resolved tomographic PIV. Time series of pressure and the scaled power
spectral density at a single point are compared to the DNS solution and results available from literature and
good agreement is found. The correlation coefficient with respect to pinhole microphone measurements
reaches a maximum value above 50% for data band-pass filtered between 250Hz and 3.5kHz. Finally, the
coherence of the pressure fluctuations and the resulting spanwise coherence length are computed compared. 自适应粒子成像测速场仪（PIV） 德国LaVision PIV/PLIF粒子成像测速场仪 时间分辨粒子成像测速系统(TR-PIV) 体视层析粒子成像测速系统(Tomo-PIV)
相关产品
相关解决方案
热门解决方案
最新解决方案
在线留言
关于我们 | 诚聘英才 | 客户投诉 | 本站服务 | 会员中心 | 买家中心
仪器网(www.yiqi.com) --专业分析仪器,检测仪器平台,实验室仪器设备交易网,仪器行业专业网络宣传推广媒体。
仪器网(www.yiqi.com)--仪器拼音域名网址,简单,易懂,好记,可信; 符合仪器用户的记忆和使用习惯,是仪器选型采购的专业平台。
销售电话: 400 822 6768 企业销售咨询: 021-68559399 021-68551566 VIP会员售后QQ: 83550177 VIP会员销售QQ: 65884322
网站售后: 021-50353779 综合业务QQ: 11694366 免费企业会员售后QQ: 932545765 展会合作QQ: 784540580 仪器求购QQ: 61224355
Copyright 2004-2024 www.yiqi.com All Rights Reserved. 沪ICP备16012899号 沪B220170422号 互联网药品信息服务资格证书 沪公网安备 31011502008050号

沪公网安备 31011502008050号


若仪器网内容侵犯到您的权益，请及时告诉我们,我们马上修改或删除。邮箱：hezou_yiqi@163.com
官方微信

仪器网微信服务号

扫码获取最新信息


仪器网官方订阅号

扫码获取最新信息

在线客服

咨询客服

在线客服
工作日:  9:00-18:00
联系客服 企业专属客服
电话客服:  400-822-6768
工作日:  9:00-18:00
订阅商机

仪采招微信公众号

采购信息一键获取海量商机轻松掌控