CAJ | 학술논문

带有烘干功能的滚筒洗衣机由于需要在外筒端盖上开孔，会改变内外筒之间的气流通道，影响内部流场分布，从而增大洗衣机气流噪声。针对某滚筒洗衣机添加烘干装置时在外筒底部端盖上开孔对内外筒之间空气流场以及对气流噪声的影响进行了分析，运用 Pro/E和ANSYS WORKBENCH分别建立了内外筒的三维模型和流体域模型。利用ANSYS CFX对比分析外筒端盖无孔和有孔的滚筒洗衣机在高速脱水状态下，内筒和外筒所包围的空气流场情况以及对气流噪声的影响，并提出相应的改进建议。
대유홍간공능적곤통세의궤유우수요재외통단개상개공，회개변내외통지간적기류통도，영향내부류장분포，종이증대세의궤기류조성。침대모곤통세의궤첨가홍간장치시재외통저부단개상개공대내외통지간공기류장이급대기류조성적영향진행료분석，운용 Pro/E화ANSYS WORKBENCH분별건립료내외통적삼유모형화류체역모형。이용ANSYS CFX대비분석외통단개무공화유공적곤통세의궤재고속탈수상태하，내통화외통소포위적공기류장정황이급대기류조성적영향，병제출상응적개진건의。
Due to the openings on the outside tube of drum washing machine with drying function, the air flow passage between the inner and outside tubes is changed,the internal flow field’ s distribution is affected and air flow noise is made. This paper mainly ana-lyzes the air flow field between inner and outside tube bottoms, as wel as the influence on air flow noise when the drum washing ma-chine is equiped with a drying device. Three-dimensional model of inner and outside tubes, fluid domain model are built by using Pro/E and ANSYS WORKBENCH. The flow field and its influence on air flow noise without hole or with holes in the high spinning phase are comparatively analyzed with software of ANSYS CFX. Based on the above analysis results, the corresponding improve-ment suggestions are proposed.