Study a Fluid Structure Interaction Mechanism to Find Its Impact on Flow Regime and the Effectiveness of This Novel Method on Declining Pressure Loss in Ducts

2nd International Conference on Design and Manufacturing Engineering

工业技术;机械制造

Kamali, Hamidreza^1 ; Ahram, Masoud Javan^1 ; Mohammadi, S. Ali^1

Faculty of Mechanical Engineering, Islamic Azad University, Bushehr, Iran^1

关键词: Blockage ratio;    Constant values;    Flexible plates;    Increase in pressure;    Lagrangian-Eulerian method;    Splitter plates;    Square cylinders;    Three dimensions;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/239/1/012010/pdf
DOI  :  10.1088/1757-899X/239/1/012010

学科分类：工业工程学

来源: IOP

【 摘 要 】

Using channels and tubes with a variety of shapes for fluids transportation is an epidemic approach which has been grown rampantly through recent years. In some cases obstacles which placed in the fluid flow act as a barrier and cause increase in pressure loss and accordingly enhance the need to more power in the entry as well as change flow patterns and produce vortexes that are not optimal. In this paper a method to suppress produced vortexes in two dimension channel that a fixed square cylinder placed in the middle of it in ReD200 in order to find a way to suppress vortexes are investigated. At first different length of splitter plates attached to square obstruction are studied to obtain the effects of length on flow pattern. Subsequently simulations have been conducted in three dimension to validate previous results as well as acquire better understanding about the selected approach. Simulations have done by Lagrangian Eulerian method, plates first assummed fix with length 1.5mm, 4mm and 7.5mm, and then flexible plates with the same length are studied. Young's modulus for flexible plate and blockage ratio were constant values of 2×106and 0.25 in all simulations, respectively. Results indicate more vortexes would be suppressed when the length of splitter plate enhances.