On inflow generation techniques for efficient simulation of thin liquid film flow over a rotating disk with radially reduced domain
- 주제(키워드) Liquid thin film flow , Wave instability , 1-D-CFD hybrid modeling , inflow generation techniques
- 발행기관 서강대학교 일반대학원
- 지도교수 강성원
- 발행년도 2026
- 학위수여년월 2026. 8
- 학위명 석사
- 학과 및 전공 일반대학원 기계공학과
- 실제URI http://www.dcollection.net/handler/sogang/000000083091
- UCI I804:11029-000000083091
- 본문언어 한국어
- 저작권 논문은 저작권에 의해 보호받습니다.
목차
1 Introduction 1
2 Problem details and numerical approaches 3
2.1 Computational domain and physical conditions 3
2.2 Governing equations and numerical methods 6
2.3 Inflow generation techniques for liquid film 9
2.3.1 Backscatter modeling 10
2.3.2 Recycling method 12
2.3.3 Low-pass filtering 14
3 Results and discussion 16
3.1 Effect of Rin under mean inlet conditions using Pigford model 16
3.2 Effect of backscatter modeling 22
3.2.1 Comparison of wave pattern and film thickness fluctuation with and without backscatter forcing 22
3.2.2 Comparison of wave pattern and film thickness fluctuation for different CB values 25
3.3 Effect of sinusoidally modulated backscatter forcing 28
3.4 Effect of recycling-based inflow generation 29
3.5 Effect of DCT-based low-pass filtering on film thickness fluctuations 32
4 Conclusions 36
