Abstract: Disclosed herein are a wavy fin, a heat exchanger having the same, an apparatus for manufacturing the same, a method of manufacturing the same, and a computer-readable recording medium storing the method. The wavy fin is configured such that top and bottom parts are alternately formed in a width direction while being connected by side parts, and the top, bottom, and side parts extend in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, and includes a front part in front of each ridge or valley of the wave in the longitudinal direction, and a rear part beyond the ridge or valley of the wave in the longitudinal direction. The front and rear parts are offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave.

Abstract: Disclosed herein are a wavy fin, a heat exchanger having the same, an apparatus for manufacturing the same, a method of manufacturing the same, and a computer-readable recording medium storing the method. The wavy fin is configured such that top and bottom parts are alternately formed in a width direction while being connected by side parts, and the top, bottom, and side parts extend in a longitudinal direction so as to form a wave such that ridges and valleys are alternately repeated, and includes a front part in front of each ridge or valley of the wave in the longitudinal direction, and a rear part beyond the ridge or valley of the wave in the longitudinal direction. The front and rear parts are offset from each other in the width direction so as to be misaligned at the ridge or valley of the wave.

Abstract: Disclosed are a wavy fin structure, in which a cross-cut having a designated length is formed at a designated position of a wavy fin, and a flat tube heat exchanger having the same. The cross-cut is formed around at least one valley or peak of the fin. One cross-cut is formed at a valley or a peak at the central portion of the fin or a plurality of cross-cuts is formed at designated periods in the length direction of the fin. Further, the cross-cut is formed at a position at the rear of the peak and the length of the cross-cuts is 1 5 ? C ? ? to ? ? 4 5 ? C . The wavy fin structure generates flow disturbance due to a wavy-type dynamic flow, thus improving heat transfer performance.