水动力刺激下生物发光的实验与数值研究

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS) Pub Date : 2018-12-01 DOI:10.1109/USYS.2018.8779059

Wei Chen, Hao Zhang, Guangqiang Wang, Zhijian Cai

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引用次数: 0

摘要

建立了流动扰动下生物发光定量图像预测的数值模型。该技术基于两部分:鞭毛藻生物发光和流体剪切之间的定量关系，以及分析图像的校准方法。前者是通过Couette流动实验得到的。分析了不同剪应力和细胞浓度下的生物发光。后一部分是通过对与相机光学特性相关的流场进行数值模拟得到的。为了验证该模型，进行了螺旋桨尾迹对生物发光的影响实验。并与数值模拟得到的发光图像进行了比较。发光区域的长度和分布与数值模型的结果在定性上是一致的。

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Experimental and Numerical Study of Bioluminescence Induced by Hydrodynamic Stimulation

A numerical model to predict quantitative images of bioluminescence under flow disturbance is formulated. The technique is based on two parts: a quantitative relationship between dinoflagellate bioluminescence and fluid shear, and a calibration methodology for analyzing images. The former part is obtained by a Couette flow experiment. Bioluminescence under different shear stresses and cell concentrations are analyzed. The latter part is obtained by numerical simulation of the flow field associated with optical characteristics of the camera. To validate the model, an experiment is performed to study bioluminescence stimulated by the wake of a propeller. Images of luminescence are compared with those obtained by numerical simulation. The length and distribution of the luminescence region are in qualitative agreement with those obtained by the numerical model.

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来源期刊

2018 IEEE 8th International Conference on Underwater System Technology: Theory and Applications (USYS)

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