C09 テーパ部を有する管における音響的なマイナーロスの測定(パルス管冷凍機,熱音響機器及び関連要素と応用システム(3))

抄録

Thermoacoustic devices are composed of tubes whose radii are usually different each other. There are two joint conditions of the tubes: they are jointed directly or via a tapered tube. In this study, acoustically lost power was measured at the joint position under the two conditions.