方案摘要
方案下载应用领域 | 其他 |
检测样本 | 其他 |
检测项目 | |
参考标准 | 暂无 |
This paper presents high speed Particle Image Velocimetry (PIV) experiments on small-scale, steep, breaking waves forced by shoaling the waves up an angled slope to a level plateau, in a lidded tank with an initially quiescent air-side. Both spilling and plunging breakers are considered. A PIV system, using a high speed digital video camera at up to 500 frames per second, was used to obtain quantitative data on both the air and water side of the free surface interface. Waves are generated by a computer controlled, paddle-type wave maker at one end of long, narrow acrylic tank. In order to obtain breaking waves on a small scale, surface tension was lowered by mixing isopropyl alcohol with distilled water. Surface tension characteristics of the water-IPA mixture are also presented herein. To perform high speed PIV measurements, a low-cost, Lasiris Magnum, near-IR, TTL diode line generator laser is used to form the light sheet. To seed the water, traditional silver coated hollow-glass spheres were used. While seeding in the water was quite straight-forward, seeding in the air was quite complex. In order not to adversely affect the surface tension, a water-based fog was used to seed the air. Qualitative visualizations and PIV show the formation of the vortex aft of the breaking wave and reveal strong counterclockwise vorticity in the air side of the interface. Results for the plunging breaking wave case are presented herein and compared with numerical results from Hendrickson (2004).
在一个双稳湍流涡旋火焰中,对间歇性动态的时间-频率定位
Particle-laden Taylor-Couette流:高阶转变和径向局部波浪涡旋的证据
7根杆束的流体-结构相互作用:用实验数据对比数值模拟
相关产品
汽车光学检测系统AIS
PT403型波长可调谐皮秒激光器
ANL系列高能量高重复频率DPSS纳秒激光器
APL4206 系列高能量皮秒激光放大器
UltraFlux FF/FT 5000 高能量可调谐飞秒激光器系统
UltraFlux FT300型波长可调谐飞秒激光器系统
Ekspla 超高功率激光器系统SYLOS 2A
LaVision PTUx 可编程时间控制单元
LaVision 用于粒子成像测速PIV的相机
LaVision StrainMaser 全场应变测试系统组件
LaVision 用于数字图像相关DIC的相机
LaVision StrainMaster 数字图像相关分析软件包
LaVision 标定板
LaVision StrainMaster 形变应变成像测量系统
LaVision StrainMaster DVC 体视全场应变测量系统
关注
拨打电话
留言咨询