experiments were performed in horizontal and vertical conduits with diameter of 50 mm respectively, adopting air and water as flow media and a triangular prism as the vortex-forming body.
according to the layer structural features of geological body, the volume element of triangular prism is constructed by plane irregular trigonometric framework.
针对地质体的层状结构特征,利用平面不规则三角网,构造三棱柱体元;
inspired by triangular warming sign, the unique shape is a metaphor of surveillance in public space. the triangular prism is the most space-saving solution for minimal volume.