Virtual reality oriented modeling and simulation of water-dropping from helicopter

Fire-fight helicopter is the core of forest aviation firefighting. Using virtual reality technology to train the crew of helicopter can improve their skill to put out fire efficiently and reduce property loss. However, current methods of visualizing water-dropping of helicopter in virtual environment cannot simultaneously ensure real-time performance and accuracy. On the one hand, the existing visualization methods, which have been widely used, are often just visual imitations and cannot reflect the physical laws of water-dropping. On the other hand, complex computations are required for the general fluid modeling method, which cannot meet the requirement of real-time response in a VR system. It is of great significance to establish a simulation-oriented model of water-dropping from helicopter for achieving realistic water visualization and further increasing the fidelity and immersion of the virtual environment. In this paper, we demonstrate an effective approach to establish a water-dropping model of helicopter and visualize it in a VR system, simulating physical laws and virtual effects at the same time.