Title :
Numerical simulation and experimental study of the vortex flow around a bluff body in horizontal gas-liquid two-phase flow
Author :
Hongjun Sun ; Jinxia Li ; Chao Wang ; Yong Yan ; Yonghui Hu
Author_Institution :
Sch. of Electr. Eng. & Autom., Tianjin Univ., Tianjin, China
Abstract :
Numerical simulation and experimental tests were undertaken to study the vortex stability of gas-liquid two-phase flow around a bluff body in a horizontal pipe. A 3-D Computational Fluid Dynamics (CFD) modeling is carried out in order to model the gas-liquid two-phase flow around a bluff body using a volume of fluid (VOF) model. The captured photographs of typical flow patterns are used to compare the CFD predictions and a good qualitative agreement is observed between them. The relationship between the Strouhal number and cross-sectional void fraction is derived from the experimental data. The vortex stability is analyzed in terms of frequency, Strouhal number and the requirement of vortex stability.
Keywords :
computational fluid dynamics; external flows; flow simulation; flow visualisation; mesh generation; pattern formation; two-phase flow; vortices; 3D CFD modeling; Strouhal number; bluff body; computational fluid dynamics; cross-sectional void fraction; horizontal gas-liquid two-phase flow; horizontal pipe; numerical simulation; photograph capturing; volume-of-fluid model; vortex flow patterns; vortex flow stability; Atmospheric modeling; Computational fluid dynamics; Educational institutions; Frequency measurement; Numerical stability; Solid modeling; Stability analysis; CFD; Stability; VOF; bluff body; gas-liquid two-phase flow;
Conference_Titel :
Instrumentation and Measurement Technology Conference (I2MTC) Proceedings, 2014 IEEE International
Conference_Location :
Montevideo
DOI :
10.1109/I2MTC.2014.6860751
