Browsing NTNU Open by Author "Wang, Jingbo"
Now showing items 1-7 of 7
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A harmonic polynomial method based on Cartesian grids with local refinement for complex wave-body interactions
Wang, Jingbo; Faltinsen, Odd Magnus (Chapter, 2018)A novel numerical method is proposed for complex potential free-surface flows of incompressible liquids with and without bodies. The present method combines high-order harmonic polynomials with Cartesian grids with local ... -
Analysis of loads, motions and cavity dynamics during freefall wedges vertically entering the water surface
Wang, Jingbo; Lugni, Claudio; Faltinsen, Odd Magnus (Journal article; Peer reviewed, 2015)In this paper, theoretical models are developed and numerical methods are used to analyze the loads, motions and cavity dynamics for freefall wedges with different deadrise angles vertically entering the water surface at ... -
Experimental and numerical investigation of a freefall wedge vertically entering the water surface
Wang, Jingbo; Lugni, Claudio; Faltinsen, Odd Magnus (Journal article; Peer reviewed, 2015)Experiments and numerical methods are developed to investigate the water entry of a freefall wedge with a focus on the evolution of the pressure on the impact sides (the side contacting water) and the top side (the dry ... -
A high‐order harmonic polynomial method for solving the Laplace equation with complex boundaries and its application to free‐surface flows. Part I: Two‐dimensional cases
Wang, Jingbo; Faltinsen, Odd Magnus; Duan, Wenyang (Peer reviewed; Journal article, 2020)A high‐order harmonic polynomial method (HPM) is developed for solving the Laplace equation with complex boundaries. The “irregular cell” is proposed for the accurate discretization of the Laplace equation, where it is ... -
Scaling laws for the water entry of a three-dimensional body
Lugni, Claudio; Wang, Jingbo; Faltinsen, Odd Magnus; Bardazzi, Andrea; Lucarelli, Alessia; Duan, Wenyang (Peer reviewed; Journal article, 2021)The present experimental investigation is a new way of conducting tests on model scale and of interpreting the results for the water entry of a free-falling conical body shape entrapping an air cavity. A three-dimensional ... -
Unsteady hydrodynamic forces of solid objects vertically entering the water surface
Wang, Jingbo; Faltinsen, Odd Magnus; Lugni, Claudio (Journal article; Peer reviewed, 2019)We investigate the unsteady hydrodynamic force of solid objects vertically entering water with an air cavity behind the falling body. Physical models are proposed to represent the force components corresponding to the body ... -
Water Entry of Freefall Wedges-Wedge Motions and Cavity Dynamics
Wang, Jingbo (Doktoravhandlinger ved NTNU, 1503-8181; 2014:144, Doctoral thesis, 2014)When a free falling object enters a free surface of water, it may go through four successive phases: impact, flow separation from the body surface, creation and pinch-off of the cavity above the body, and oscillation of ...