Experimental Research and Numerical Simulation of Natural Convection

This paper mainly introduces the study that use particle image velocimetry (PIV) and planar laser induced fluorescence (PLIF) techniques to measure the natural convection flow field in a cabinet. In order to simulate the natural convection flow, a square cabinet is built, and different boundary temperatures are set to generate natural convection. The research shows that the experimental results measured by the PIV and PLIF technologies are close to the results of computational fluid dynamics (CFD) numerical simulation. This verifies the accuracy of the test technique and numerical simulation. Furthermore, the measurement technologies of PIV and PLIF will contribute to in-depth study on natural convective flow phenomena.