Virtual Air Conditioner’s Airflow Simulation and Visualization in AR

Screen‐space Streamline Seeding Method for Visualizing Unsteady Flow in Augmented Reality

“…The room's dimensions are $$$ 8.8\times 7.2\times 3.2\;{\mathrm{m}}^3 $$$, and its occupancy grid is composed of 202,752 cubical cells (each with the side length 10 cm). This occupancy grid is taken as the simulation domain of the grid‐based real‐time simulator built upon FFD 9,10 …”

“…This occupancy grid is taken as the simulation domain of the grid-based real-time simulator built upon FFD. 9,10 In the room, we install a virtual air conditioner on the ceiling (pointed by the red arrow in Figure 1a). Then, the low-temperature air sources are placed in the cells occupied by the air conditioner's vents.…”

“…This paper presents a screen-space streamline seeding method for visualizing unsteady flow in AR. It is implemented on top of the real-time platform proposed by Chae et al 9 Our main contributions are listed as follows:…”

“…This paper presents a screen‐space streamline seeding method for visualizing unsteady flow in AR. It is implemented on top of the real‐time platform proposed by Chae et al 9 Our main contributions are listed as follows: Our method is fast enough to run in real time even when generating about 1500 streamlines in the screen. The method guarantees temporal coherence. Our experiments show that it can generate a set of streamlines that effectively visualize unsteady flow in a natural manner. It is also shown that the representation qualities of our screen‐space method is better than those of existing real‐time methods for visualizing streamlines.…”

“…8 However, these works are based on pre-calculated results of computational fluid dynamics (CFD), and such CFD data cannot react to any changes in the environments. On the other hand, Chae et al 9 recently proposed to use fast fluid dynamics (FFD) 10 for simulating unsteady flow in real time. In their proof-of-concept study, however, only arrow glyphs and particles were implemented.…”