Virtual product development of circulation centrifugal fan for clothes dryer using two-dimensional computational fluid dynamics techniques

Sungdae Cho; Cheolung Cheong; Jinho Choi; Wonick Choi

doi:10.7776/ASK.2025.44.1.001

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2025 Vol.44, Issue 1 Next Page

Research Article

Virtual product development of circulation centrifugal fan for clothes dryer using two-dimensional computational fluid dynamics techniques 2차원 전산유체역학 기법을 이용한 건조기 순환 원심팬 가상제품개발

31 January 2025. pp. 1-13

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Abstract

Recently, Virtual Product Development (VPD) using high-precision 3D Computational Fluid Dynamics (CFD) techniques has been utilized to design centrifugal fans efficiently by considering various design variables and operating conditions. However, a significant limitation still remains, as numerical analysis that takes into account diverse operating conditions and design variables requires substantial development costs. Therefore, this study aims to develop a high-efficiency and high-accuracy design methodology for centrifugal fan systems used in dryers and proposes a VPD model based on a multi-fidelity model utilizing 2D CFD techniques. First, 2D and 3D numerical analyses were conducted using the Reynolds Averaged Navier-Stokes (RANS) equations based on CFD, and the validity of the numerical method was verified by comparing the results with experimental data. Next, 2D numerical analysis data were utilized as low-fidelity data, while the 3D numerical analysis data were used as high-fidelity data to develop a multi-fidelity model. Based on the performance prediction data generated by the developed multi-fidelity model, the optimal design of the centrifugal fan system was performed, considering the scroll's cut-off angle, the blade inlet angle, and the blade outlet angle as design variables. The improved flow performance of the derived optimal model was numerically validated using a 3D numerical method, and by applying fan laws, a reduction in noise levels at the same flow rate was confirmed.

Keywords

Dryer

Centrifugal fan,

Computational Fluid Dynamics (CFD)

Multi-fidelity model

Virtual Product Development (VPD)

최근 원심팬의 다양한 설계 변수와 구동 조건을 고려한 효율적인 설계를 위해 고정밀 3차원 전산유체역학(Computational Fluid Dynamics, CFD) 기법을 이용한 가상제품개발(Virtual Product Development, VPD)이 이루어지고 있다. 하지만 다양한 운전 조건과 설계 변수를 고려한 수치해석에는 큰 개발 비용이 요구된다는 한계점이 존재한다. 따라서 본 연구에서는 건조기용 원심팬 시스템을 대상으로 고효율 고적확 설계 기법 개발을 목표로 하여 2차원 CFD 기법을 이용한 다중 충실도 모델 기반의 가상제품개발 모델을 제안하였다. 먼저, 전산유체역학 기반의 Reynolds Averaged Navier-Stokes(RANS) 방정식을 이용해 2차원과 3차원 수치해석을 수행하고 이를 실험 결과와의 비교를 통해 수치 기법의 유효성을 검증하였다. 다음으로 2차원 수치해석 데이터를 저충실도 데이터로, 3차원 수치해석 데이터를 고충실도 데이터로 활용하여 다중 충실도 모델을 개발하였다. 개발한 다중 충실도 모델의 성능 예측 데이터를 기반으로 원심팬 시스템의 최적 설계를 수행하였으며, 설계 인자로는 스크롤의 cut-off 각도, 원심팬의 날개 입구각, 출구각을 고려하였다. 도출된 최적 모델에 대하여 3차원 수치 기법을 활용해 개선된 유량 성능을 수치적으로 검증하였으며, 팬 법칙을 적용하여 동일 유량에서 소음 수준이 감소함을 확인하였다.

키워드

건조기

원심팬

전산유체역학

다중 충실도 모델

가상제품개발

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Information

Publisher :The Acoustical Society of Korea
Publisher(Ko) :한국음향학회
Journal Title :The Journal of the Acoustical Society of Korea
Journal Title(Ko) :한국음향학회지
Volume : 44
No :1
Pages :1-13
Received Date : 2024-11-14
Revised Date : 2024-12-23
Accepted Date : 2024-12-31
DOI :https://doi.org/10.7776/ASK.2025.44.1.001

The Journal of the Acoustical Society of KoreaISSN:1225-4428(Print) 2287-3775(Online)한국음향학회

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