Research on ship air wake based on CFD simulation and lidar observation

The airflow formed by the combination of ship speed and natural wind interacts with the hull, forming unsteady wake downstream. This type of ship air wake observation is of great significance for ship design optimization, ship navigation safety, and carrier based aircraft landing safety. Based on CF...

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Bibliographic Details
Published in2024 9th International Symposium on Computer and Information Processing Technology (ISCIPT) pp. 460 - 463
Main Authors Zhang, Pinsheng, Fu, Yuwen
Format Conference Proceeding
LanguageEnglish
Published IEEE 24.05.2024
Subjects
Air flow field
Aircraft navigation
Atmospheric modeling
CFD simulation
Laser radar
Lidar
Numerical models
Numerical simulation
Sea measurements
Ship air wake
Wind speed
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Summary:The airflow formed by the combination of ship speed and natural wind interacts with the hull, forming unsteady wake downstream. This type of ship air wake observation is of great significance for ship design optimization, ship navigation safety, and carrier based aircraft landing safety. Based on CFD simulation technology, the simulation of air wake can obtain the characteristic information of ship's rear wake. In the simulation process, a simplified model of the ship is first established and the structural mesh is divided. Then, the steady-state RANS method is used for numerical calculation of the ship's air flow field. However, in steady-state calculations, for large separated flow problems such as ships, there is often some deviation in the calculation results due to the influence of sea surface winds, ship hull and superstructure airflow, as well as some limitations of the calculation method itself. Its accuracy needs to be compared and corrected with the measured results of LiDAR. Therefore, this study compares and corrects the calculation results of ship air wake based on CFD simulation and LiDAR observation. The research results show that the wind speed error of numerical calculation is within 0.1m/s, which meets the requirements.
DOI:10.1109/ISCIPT61983.2024.10673349