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Simulation of small-scale features in thin liquid jets and muddy water effects

Simulation of small-scale features in thin liquid jets and muddy water effects

Material type
학위논문
Personal Author
백승호 白承鎬
Title Statement
Simulation of small-scale features in thin liquid jets and muddy water effects / Seungho Baek
Publication, Distribution, etc
Seoul :   Graduate School, Korea University,   2017  
Physical Medium
iv, 70장 : 천연색삽화, 도표 ; 26 cm
기타형태 저록
Simulation of Small-Scale Features in Thin Liquid Jets and Muddy Water Effects   (DCOLL211009)000000076583  
학위논문주기
학위논문(박사)-- 고려대학교 대학원: 컴퓨터·전파통신공학과, 2017. 8
학과코드
0510   6YD36   339  
General Note
지도교수: 韓政鉉  
Bibliography, Etc. Note
참고문헌: 장 57-68
이용가능한 다른형태자료
PDF 파일로도 이용가능;   Requires PDF file reader(application/pdf)  
비통제주제어
fluid simulation,,
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001 000045915423
005 20171012173700
007 ta
008 170629s2017 ulkad bmAC 000c eng
040 ▼a 211009 ▼c 211009 ▼d 211009
085 0 ▼a 0510 ▼2 KDCP
090 ▼a 0510 ▼b 6YD36 ▼c 339
100 1 ▼a 백승호 ▼g 白承鎬
245 1 0 ▼a Simulation of small-scale features in thin liquid jets and muddy water effects / ▼d Seungho Baek
260 ▼a Seoul : ▼b Graduate School, Korea University, ▼c 2017
300 ▼a iv, 70장 : ▼b 천연색삽화, 도표 ; ▼c 26 cm
500 ▼a 지도교수: 韓政鉉
502 1 ▼a 학위논문(박사)-- ▼b 고려대학교 대학원: ▼c 컴퓨터·전파통신공학과, ▼d 2017. 8
504 ▼a 참고문헌: 장 57-68
530 ▼a PDF 파일로도 이용가능; ▼c Requires PDF file reader(application/pdf)
653 ▼a fluid simulation
776 0 ▼t Simulation of Small-Scale Features in Thin Liquid Jets and Muddy Water Effects ▼w (DCOLL211009)000000076583
900 1 0 ▼a Baek, Seung-ho, ▼e
900 1 0 ▼a 한정현 ▼g 韓政鉉, ▼e 지도교수
945 ▼a KLPA

Electronic Information

No. Title Service
1
Simulation of small-scale features in thin liquid jets and muddy water effects (10회 열람)
View PDF Abstract Table of Contents

Holdings Information

No. Location Call Number Accession No. Availability Due Date Make a Reservation Service
No. 1 Location Science & Engineering Library/Stacks(Thesis)/ Call Number 0510 6YD36 339 Accession No. 123056953 Availability Available Due Date Make a Reservation Service B M

Contents information

Abstract

This Thesis introduces effective methods to simulate small-scale features in thin liquid jets and muddy water animation. In the microscopic scope, these fluids show interesting phenomena that make the simulation more realistic. The existing fluid simulation methods that represent small-scale features require extremely high resolution. However, since the features are found in a microscopic area, the high resolution reduces the efficiency of the total simulation. Therefore, this paper proposes novel simulation models for thin liquid jets and muddy water animation.

First of all, this thesis proposes a novel approach to represent thin liquid jets. In a thin liquid jet from faucet, shower, fountain, etc., the initially smooth jet surface is gradually perturbed with time to eventually produce droplets. This thesis proposes to model such a liquid jet with a thread. It is defined as a series of nodes, and an edge connecting a pair of nodes is filled with volume particles. The jet's large-scale behavior is simulated by moving a relatively small number of nodes whereas the small-scale detail is described using the volume particles. The proposed method is capable of handling a large number of jets and describing the special effects, such as liquid chain and fishbone, produced by impinging jets. Furthermore, the proposed method can be neatly integrated into existing fluid simulation systems at a small cost.

Secondly, this thesis proposes simulation method that produces visually plausible muddy water effects. Muddy water is an example of suspension, which is a mixture containing particles that separate into distinct layers if left undisturbed. When stirred, however, the mud substance flows like a liquid and again begins settling out. Mud is composed of various sized particles and they produce different effects when it is blended with water. This thesis classifies the mud particles into three types and proposes different simulation methods for the types.

Table of Contents

Contents i
List of Figures iii
1 Introduction 1
2 Related works 5
3 Simulation of Thin Liquid Jets with Threads 11
3.1 Thin jet modeling with thread 13
3.1.1 Thread structure 13
3.1.2 Force 14
3.1.3 Instability 18
3.2 Impinging jets 21
3.2.1 Input thread 21
3.2.2 Output thread 23
3.3 Experimental results 31
4 Muddy water animation with different details 35
4.1 Sand Particles 37
4.2 Suspension Particles 40
4.2.1 Sampling 40
4.2.2 Moving Suspension Particles 44
4.2.3 Removing Suspension Particles 47
4.3 Colloid 48
4.4 Experimental Results 49
5 Conclusion and Future Work 54
Bibliography 57