Flow Characteristics and Control of Vertical Upward Gas-Liquid Two-Phase Flow through a Sudden Contraction Pipe(<Special Issue>Jets, Wakes and Separated Flows)
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概要
- 論文の詳細を見る
The flow characteristics of upward gas-liquid two-phase flow through a vertical sudden contraction pipe is an area that has been less studied experimentally and numerically and that is still little known. The drag and its reduction for an upward bubbly two-phase flow in a sudden contraction pipe are investigated. Vortices are generated just prior to and after contraction and they significantly affect the flow characteristics. A simple and economical method to control and smoothen the flow is proposed by mounting a small obstacle (ring) upstream the contraction. The effects of ring position, Reynolds number and volumetric gas flow rate are examined and positive results were seen in all flow conditions. Moreover, the pressure fluctuation phenomenon and its control downstream the contraction was considered.
- 一般社団法人日本機械学会の論文
- 2006-11-15
著者
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SHAKOUCHI Toshihiko
Graduate School of Engineering, Mie University
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TSUJIMOTO Koichi
Graduate School of Engineering, Mie University
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ANDO Toshitake
Graduate School of Engineering, Mie University
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VOUTSINAS Alexandros
Graduate School of Engineering, Mie University
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Ando Toshitake
Graduate School Of Engineering Mie University
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Tsujimoto Koichi
Graduate School Of Engineering Mie University
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Shakouchi Toshihiko
Graduate School Of Engineering Mie University
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Voutsinas Alexandros
Graduate School Of Engineering Mie University
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TAKAMURA Junichi
Graduate School of Engineering, Mie University
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Takamura Junichi
Graduate School Of Engineering Mie University
関連論文
- Flow and Heat Transfer Control to Improve the Performance of Fin-Tube Type Heat Exchanger by Vortex Generator
- Investigation of Bubble Size Effect on Vertical Upward Bubbly Two-Phase Pipe Flow Consisted With an Abrupt Expansion
- Flow Analysis for Single and Multi-Nozzle Jet Pump(Jets, Wakes and Separated Flows)
- Flow Analysis for Single and Multi-Nozzle Jet Pump(Multiple Jet)
- Heat Transfer Enhancement and Flow Resistance Reduction of Orifice Impinging Jet
- Drag Reduction of Pipe Inlet Flow
- Flow Characteristics and Control of Vertical Upward Gas-Liquid Two-Phase Flow through a Sudden Contraction Pipe(Jets, Wakes and Separated Flows)
- Direct Numerical Simulation of Jet Mixing Control Using Combined Jets(Jets, Wakes and Separated Flows)
- Direct Numerical Simulation of Jet Mixing Control Using Combined Jets(Numerical Simulation)
- FLOW AND CONTROL OF VERTICAL UPWARD GAS-LIQUID TWO-PHASE FLOW THROUGH SUDDEN CONTRACTION PIPE(Multiphase Flow 2)
- Numerical Investigation on Flow Structures and Mixing Performances of Vector-Controlled Free Jet using DNS
- Flow and Heat Transfer Characteristics of High Temperature Gas-Particle Air Jet Flow(Multiphase Flow 2)
- Flow and Heat Transfer of Impinging Jet from Notched-Orifice Nozzle
- Effect of Surface Roughness on Jet Pump Performance(Jets, Wakes and Separated Flows)
- EFFECT OF SURFACE ROUGHNESS ON JET PUMP PERFORMANCE(Fluid Machinery)
- Gas-Particle Two-Phase Jet Flow from Slot Nozzle and Micro-Blasting Process
- Recycling of Waste Concrete and Fixation of Carbon Dioxide by Micro Bubble Jet Flow
- Drag Reduction of T-junction Pipe Flow by Small Obstacles
- Foreword(Jets, Wakes and Separated Flows)
- Direct Numerical Simulation of Active-Controlled Impinging Jets
- Effects of Pressure Fluctuation on Flow-Accelerated Corrosion in the Downstream of Orifice Nozzle
- Preface