• The KSFM Journal of Fluid Machinery
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• v.4 no.1 s.10
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• pp.46-51
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• 2001

The revision is proposed for forward curved bladed fans in order to make the KS B 6326 established in 1987 in agreements with newly revised KS standards. This proposal includes modification of Aplication range, numbering system, classification based on performance, and allowing dimensions for specified sizes.

• 유체기계공업학회:학술대회논문집
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• 2000.12a
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• pp.104-109
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• 2000

The revision was proposed for forward curved bladed fans in order to make the KS B 6326 established in In in agreements with newly revised KS standards. This proposal includes modification of Application range, numbering system classification based on performance, and allowing dimensions for specified sizes.

• 유체기계공업학회:학술대회논문집
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• 2001.11a
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• pp.48-53
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• 2001

A centrifugal fan design code was developed and included in $DasignFan^{TM}$. This program generates forward -curved and backward-curved bladed centrifugal fan data. With the inverse design concept used in the code, the period of designing a fm, which has given aerodynamic performance with minimal acoustic noise, is significantly shortened.. A centrifugal fan design code, developed in this study and included in $DasignFan^{TM}$, predicts the aerodynamic performance by using mean-line analysis and various loss models. In the period of design a lift force distribution between pressure side and suction side of blade is calculated. And then it is used to calculate steady loading noise from the impeller.

• The KSFM Journal of Fluid Machinery
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• v.13 no.3
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• pp.37-42
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• 2010

This study investigated on details of flow characteristics of a multi-blade fan for domestic ventilation. Experiments and analysis were carried out to describe on flow pattern with variations of cut-off angle near the scroll housing throat, which were performed by PIV measurement for the flow field and by total pressure probes. The stagnation point at cut-off region of the fan moves to the exit of the scroll housing as the cut-off angle increases. The movement of stagnation point and the variation of throat area of the scroll housing influence to the distribution of velocity magnitude at the exit of the fan. Furthermore, a large distortion of the velocity distribution at the scroll exit causes to increase mixing loss along the flow path.