The Influence Of Tank To Ship Motion Based On OpenFOAM

This paper uses the open source OpenFOAM of CFD software,based on the theory of the viscous numerical simulation to the movement of water coupling integration inside and outside,has realized the full viscous way to simulate the internal and external water coupling problem,in general only using the theory of potential flow or hybrid time-domain theory inside and outside to simulate water coupling problem on new progress has been made.In the first three chapters in this paper is mainly in addition to the background and development of the study of the internal web of coupling the narration,VOF of viscous flow theory and the finite volume method how to solve the internal and external water coupling cooperation theory.In addition,to solve the floating body movement in waves,must want to establish a reliable numerical wave tank,in this article is about how to set up a numerical wave tank in OpenFOAM introduced simply,and analyzes the effect of some parameters on the numerical pools,make its can meet the requirements of scientific research.The exploration of internal and external water coupling integration based on the traditional theory research has made a lot of progress,and based on the theory of the viscosity research is still in its preliminary stage,so in the fourth chapter,with a simple two-dimensional box as the research object,through the development of OpenFOAM,implements the two-dimensional square box with the water tank in the wave movement,and compared the results of numerical simulation and experimental results,verify the internal and external water use full viscous coupling problem to simulate the reliability and accuracy.Both inside and outside the implements a simple 3d tank of water coupling integration movement,finally using a offshore platform work ship PSV eindhoven as the research object,analyses the inside and outside the whole cohesive means to simulate complex model coupling question the reliability of the water,with calculation,PSV have been obtained respectively with a water tank in static water and free attenuation movement in the wave movement,have free attenuation curve analysis to get water for hull rolling period and the influence of damping,again by the rolling motion frequency response value how much water is analyzed for the influence of the ship's seakeeping,by the water phase variation explained some calculation results,from the side to verify the total viscous simulation inside and outside the feasibility of the integration of water coupling.