Using Poisson Disk Sampling to Render Oil Particles at Sea

Abstract

Fluid simulation is one of the most complex tasks in three-dimensional simulation. Specifically, in the case of oil spills at sea, the oil film constantly interacts and is influenced by the environment, thus making its composition and properties change over time. In this paper, we tackle this problem by using both Lehr's spreading model and Hoult's drifting model to build the oil spill physical model. Unlike previous studies that only applied the Poisson disk algorithm to static and solid objects, we applied it in a three-dimensional space to divide the oil film into fluid particles. The track of oil particles under the influence of waves, wind, and currents is rendered by the Unity3D tool with C# programming language, which vividly and realistically simulates the collision of oil particles on the ocean scene with obstacles such as buoys and small islands. The result of this research can be used to predict oil spill direction, thus providing the solution to respond and minimize the damage caused by oil spills at sea. We also discuss some improvements to our model by using the Marching cube algorithm to render the Metaball model.

An Improved Particle Number-Based Oil Spill Model Using Implicit Viscosity in Marine Simulator

“…η ρ is the threshold of density change and iteriteriter is the number of iterations. Since we adopted a pressure projection scheme to decouple the relationship between pressure term and velocity in momentum equation (2), at the beginning of each iteration, we need to first compute the intermediate density ρ * i based on the current particle position distribution. en, we can compute the density constraint C i and Lagrangian multiplier (1) while: ((Dρ/Dt) avg > η v )∨(iter < 1):…”

“…Oil pollution has a serious hazard to the marine ecological environment and marine biological resources. Oil spill pollution accidents can cause vast stretches of ocean to become hypoxic, leading to the smothering of sedentary species, such as seaweeds and shellfish [1,2]. e fishing and mariculture industries will also be seriously affected by oil spills.…”

Simulation of Risk Minimization in Case of Pollution on Marine Areas

“…Oil pollution has a serious hazard to the marine ecological environment and marine biological resources. Oil spill pollution accidents can cause vast stretches of ocean to become hypoxic, leading to the smothering of sedentary species, such as seaweeds and shellfish [1,2]. The fishing and marine culture industries will also be seriously affected by oil spills.…”

“…If the spilled oil is not cleaned up in time, it may also cause explosions and fires, causing more serious economic losses and casualties. Oil spills include releases of crude oil from tankers, offshore platforms, and drilling rigs [1,2]". "When an oil spill occurs, if the competent authority and ship's officers can respond effectively and successfully, the damage caused by oil spill will be significantly reduced.…”