| Abstract (In Chinese) | 第4-7页 |
| Abstract | 第7-9页 |
| Acknowledgements | 第10-14页 |
| Nomenclature | 第14-26页 |
| CHAPTER 1 INTRODUCTION | 第26-38页 |
| 1.1 Research background and significance | 第26-28页 |
| 1.2 Research status of flow around multiple prims | 第28-35页 |
| 1.2.1 Flow around multiple prisms in side-by-side arrangement | 第28-32页 |
| 1.2.2 Flow around multiple prisms in tandem arrangement | 第32-35页 |
| 1.3 Main research contents of this subject | 第35-36页 |
| 1.3.1 Flow around three side-by-side prisms | 第35页 |
| 1.3.2 Flow around three tandem prisms | 第35-36页 |
| 1.4 Outline of dissertation | 第36-38页 |
| CHAPTER 2 COMPUTATIONAL DETAILS AND VALIDATION | 第38-53页 |
| 2.1 Governing equations and numerical method | 第38-39页 |
| 2.2 Boundary and initial conditions | 第39-42页 |
| 2.3 Mesh dependency and model validation (side-by-side) | 第42-49页 |
| 2.3.1 Mesh resolution and validation | 第42-44页 |
| 2.3.2 Validation for locations of the computational boundary | 第44-46页 |
| 2.3.3 Validation of mesh resolution for three prisms | 第46-47页 |
| 2.3.4 Experimental details and results (qualitative validation) | 第47-49页 |
| 2.4 Mesh dependency and model validation (tandem) | 第49-53页 |
| Part A: Flow Around Three Side-by-side Prisms | 第53-98页 |
| CHAPTER 3 FLOW STRUCTURE, SHEDDING FREQUENCY AND FLUID FORCE | 第54-82页 |
| 3.1 Introduction | 第54-56页 |
| 3.2 Base-bleed flow (regime A, L/W < 1.4) | 第56-60页 |
| 3.3 Flip-flopping flow (regime B, 1.4 < L/W < 2.1) | 第60-66页 |
| 3.4 Symmetrically biased beat flow (regime C, 2.1 < L/W < 2.6) | 第66-70页 |
| 3.5 Non-biased beat flow (regime D, 2.6 < L/W < 7.25) | 第70-74页 |
| 3.6 Weak interaction flow (regime E, 7.25 < L/W < 9.0) | 第74-75页 |
| 3.7 Dependence of St on L/W and flow classification | 第75-78页 |
| 3.8 Scaling of shedding frequency | 第78-80页 |
| 3.9 Brief summary | 第80-82页 |
| CHAPTER 4 PHYSICS OF THE BEAT FREQUENCY AND BEAT FLOW | 第82-98页 |
| 4.1 Introduction | 第82-84页 |
| 4.2 The origin of beat frequency and its effect on lift force | 第84-90页 |
| 4.2.1 Symmetrically biased beat flow | 第85-87页 |
| 4.2.2 Non-biased beat flow | 第87-90页 |
| 4.3 Effect on CL of the phase lag between shedding from two sides of a gap | 第90-97页 |
| 4.4 Brief summary | 第97-98页 |
| Part B: Flow Around Three Tandem Prisms | 第98-156页 |
| CHAPTER 5 FLOW STRUCTURE, SHEDDING FREQUENCY, AND FLUID FORCE | 第99-122页 |
| 5.1 Introduction | 第99-101页 |
| 5.2 Single bluff-body flow (regime I, L/W < 3.0) | 第101-103页 |
| 5.3 Alternating reattachment flow (regime II, 3.0 < L/W < 4.3) | 第103-106页 |
| 5.4 Synchronized coshedding flow (regime III, 4.3 < L/W < 7.3) | 第106-113页 |
| 5.5 Desynchronized coshedding flow (regime IV, 7.3 < L/W ≤ 10.0) | 第113页 |
| 5.6 Dependence of fluid forces and shedding frequency on L/W | 第113-120页 |
| 5.6.1 Fluctuating lift and drag | 第114-117页 |
| 5.6.2 Time-averaged drag | 第117-119页 |
| 5.6.3 Vortex shedding frequency | 第119-120页 |
| 5.7 Brief summary | 第120-122页 |
| CHAPTER 6 SECONDARY VORTEX STREET FORMATION AND ITS INHERENT FREQUENCY | 第122-150页 |
| 6.1 Introduction | 第122-123页 |
| 6.2 Dynamic mode decomposition (DMD) method | 第123-132页 |
| 6.2.1 Algorithm and application of DMD method | 第123-128页 |
| 6.2.2 Difference between DMD and POD methods | 第128-132页 |
| 6.3 Onset position of secondary vortex street | 第132-136页 |
| 6.4 Performance of POD analysis for vortex street decomposition | 第136-140页 |
| 6.5 Mechanism of secondary vortex street in regime IIIB | 第140-145页 |
| 6.6 Mechanism of secondary vortex street in regime IV | 第145-148页 |
| 6.7 Comparison between vortex evolution in regimes IIIB and IV | 第148-149页 |
| 6.8 Brief summary | 第149-150页 |
| CHAPTER 7 CONCLUSIONS | 第150-156页 |
| 7.1 Flow around three side-by-side prisms | 第150-152页 |
| 7.2 Flow around three tandem prisms | 第152-155页 |
| 7.3 Topics for future investigations | 第155-156页 |
| References | 第156-168页 |
| Papers published in period of Ph.D. education | 第168-171页 |
| Journal Articles | 第168页 |
| Selected Conference Papers | 第168-171页 |
| Resume | 第171页 |
