摘要
抛弃式探头下沉数学模型的有效性及其运动的CFD仿真计算方法,都需要在较短时间内设计并制作模型实物,以进行实验验证。利用计算机辅助设计结合三维快速成型技术制作了探头模型,并在实验室水箱环境下进行了模型实验。探头模型的质量调整精确度较高,变化范围小于0.6 g,且重量分布均匀,下沉运动方向平稳;可控制其在有效实验水深内达到需要的下沉速度,利用高速摄像和图像处理后得到的实验结果准确可靠,可作为提高CFD仿真计算方法准确性的依据。
The validity of the sinking mathematics model of an expendable probe and the CFD method for motion simulation and calculation both need model experiment verification after designing and fabricating the model within a short period of time. The model of the probe is made using the CAD and 3D rapid prototyping techniques, and model experiments are designed and completed under the plume environment. Several lower mass probes are measured precisely by high-speed camera and image manipulation in finite depth, and the mass variation is less than 0.6 g, with balanced weight distribution and stable sinking direction. The sinking velocity can be controlled in the effective experiment depth in the plume laboratory environment, and the results are accurate and reliable, which is proved by high speed camera and image manipulation. The results in this paper can provide a basis for enhancing the accuracy of the CFD simulation method.
作者
陈振涛
叶松
刘凤
王晓蕾
陈晓颖
CHEN Zhen-tao YE Song LIU Feng WANG Xiao-lei CHEN Xiao-ying(College of Meteorology and Oceanography, PLA University of Science ＆ Technology, Nanjing 211101, Jiangsu Province, China)
出处
《海洋技术学报》
2017年第1期42-46,共5页
Journal of Ocean Technology
基金
国家自然科学基金资助项目(41406107)
