Welcome to FlowWatch Laboratory

FlowWatch Laboratory is devoted to research on fluid flows, especially the flows accompanied by shock waves, using numerical and experimental techniques. Current research subjects include

• To develop an exactly conservative numerical method for the simulation of compressible multiphase phenomenon containing ANY sized bubbles. Practical applications on hand include laser-induced bubble phenomenon, volcano eruption, supersonic jet formation by impact acceleration method, and hypersonic water entry phenomenon. We have made a breakthrough on this task recently, see the movie below. Bubble(s) collapsing after shock wave loading has been resolved on a very coarse grid. Most important features are successfully resolved. An interface is resolved roughly within one grid cell. A sub-grid size bubble can be simulated as well, even after its rebound. The computation took only a few minutes on a PC computer. The technique allows us to perform more challenging computations that have never been tried, such as direct simulation of volcano eruption.
• To develop a computer-aided technique to analyze optical setups, such as shadowgraph method and schlieren method, by combining CFD and ray tracing method.
• To develop integrated CFD software or module for shock dynamics as the first step to build a virtual shock tube.