Research And Development On Three Dimensional Visual Simulation Of Hydrodynamics

Hydrodynamics is a subject which task is to study the law of movement andapplication of fluids (mainly the water). Visualization is important to the computinghydrodynamics. First, the result of computing hydrodynamics has a lot of data, use thevisualization to demonstrate the data is intuitive. Second, the result of dynamicdemonstration integrated with the three dimensional topography and the demonstratemethod of multi-angle, multi-dimensional and multi-level is more superiority than thetraditional method. Third, compared the simulation result with observed data couldverify the accuracy of the numerical model.Based on the review of development of hydrodynamics and visualization, use thetheoretical analysis, on field experiment and numerical simulation to search the GIS todemonstrate the compute result. No matter the experimental model or the numericalmodel, the target is to simulate the realistic conditions better. Served the numericalmodel and experimental model of waterway engineering as target, based on the dataof numerical model and experimental model of VDMS, use the technology ofsimulation, database, GIS and three dimensional simulation to setup a computersoftware system which can simulate the process of experimental model and numericalmodel.The system is a single computer visual and dynamic simulation system whichuses the newest OSG2.8version, under the environmental of Microsoft Visual Studio2005C++.net. This system developed two methods to display velocity, vector arrowand tracer particle. Realized the introduction of WMV video and topography. Thissystem can provide several simulation effects, plot cross section, tide leveldisplacement, interactive tracer particle and subject comparison.