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Simulation and visualization of rainfall overland flowbased on diffusion equation |
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| รหัสดีโอไอ | |
| Creator | 1. Anurak Busaman 2. Somporn Chuai-Aree 3. Rhysa McNeil |
| Title | Simulation and visualization of rainfall overland flowbased on diffusion equation |
| Publisher | Research and Development Office, Prince of Songkla University |
| Publication Year | 2565 |
| Journal Title | Songklanakarin Journal of Science an Technology (SJST) |
| Journal Vol. | 44 |
| Journal No. | 1 |
| Page no. | 217-222 |
| Keyword | simulation, visualization, finite difference method, rainfall overland flow, diffusion equation |
| URL Website | https://rdo.psu.ac.th/sjst/index.php |
| ISSN | 0125-3395 |
| Abstract | Numerous applications in virtual reality and computer animation need tools including efficient algorithms, formodeling and simulation of water overland flow. This paper proposes an algorithm and a model for simulation and visualizationof rainwater overland flow. We use the finite difference method associated with a dynamic domain to solve the diffusionequations in order to reduce the computation time. The simulation results show the water propagation in rugged terrains.Moreover, the results indicate that our algorithm is highly efficient because it reduces the computation time. The diffusion modeland a numerical method were applied in this work for the simulation of water flooding caused by continuous heavy rain inNakhon Si Thammarat province, southern Thailand. Results show that the flood plain obtained by the diffusion model is similarto the actual flooding area from the real satellite image. This indicates that the diffusion model has high potential, and can beadopted for predictive use in flood risk assessments, water resources management, and disaster prevention from water flooding. |
