Comparison of reconstruction algorithm in deepsea hydrothermal velocity field

BAI Yan, MAO Jie, FAN Wei, PAN Huachen
(School of Mechanical Engineering, Hangzhou Dianzi University, Hangzhou 310018, China)

Abstract: Aiming at measuring and reconstruction of the deepsea hydrothermal velocity field, the basic theory of acoustic velocity field measurement in deepsea hydrothermal vents was introduced. Based on single and doublepeaked velocity field model, the reconstruction of velocity field via least square method and Fourier regularization mehods were presented. The absolute, the relative error and flow flux analysis of the reconstructed velocity fields were given. It shows that Fourier regularization method has a better result than least square method to single and doublepeaked velocity field model.
Key words: acoustic velocity measurement; deepsea hydrothermal vents; reconstruction algorithm; least square method; regularization method