CAJ | 학술논문

爆炸和火山喷发的动画场景包含复杂的涡流，其间伴随着空间气压和温度的变化。为了模拟这种非均匀流体的湍流动态形态，提出了一个简单而有效的框架，以代替精确计算这种动力学中不稳定的复杂流体。首先粗略估计一下湍流的平均运动；然后用新的涡流质点法和斜质性计算出高分辨率的动力学系统，其中斜压性所产生新的涡流效果取决于温度和密度分布；最后给出了不同温度和密度下较好的场景模拟效果。
폭작화화산분발적동화장경포함복잡적와류，기간반수착공간기압화온도적변화。위료모의저충비균균류체적단류동태형태，제출료일개간단이유효적광가，이대체정학계산저충동역학중불은정적복잡류체。수선조략고계일하단류적평균운동；연후용신적와류질점법화사질성계산출고분변솔적동역학계통，기중사압성소산생신적와류효과취결우온도화밀도분포；최후급출료불동온도화밀도하교호적장경모의효과。
The explosive or volcanic scenes in motion pictures involve complex turbulent flow as its temperature and density vary in space . To simulate this turbulent flow of an inhomogeneous fluid , we propose a simple and efficient framework . Instead of explicitly computing the complex motion of this fluid dynamical instability , we first approximate the average motion of the fluid . Then , the high-resolution dynamics is computed using our new extended version of the vortex particle method with baroclinity . This baroclinity term makes turbulent effects by generating new vortex particles according to temperature/density distributions . Finally , we efficiently simulate a complex scene with varying density and temperature .