Flow Field Measurement of Natural Convection in a Rectangular Cavity Using Laser Speckle Photography

레이저 반점(斑點)을 이용한 사각형(四角形) 공동(空洞)내의 자연대류(自然對流) 유동장(流動場) 측정(測定)

A two-dimensional velocity map of natural convection in a rectangular cavity is determined using laser speckle photography. Isovelocity contour drawn by spatial filtering and local velocity by pointwise method are obtained. These results are compared with those of numerical analysis.