Research Article Flow-Induced Vibration on the Control Valve with a Different Concave Plug Shape Using FSI Simulation Akram Zeid and Mohamed Shouman Faculty of Maritime Transport and Technology, Marine Engineering Technology Department, Arab Academy for Science, Technology and Maritime Transport, Alexandria, Egypt Correspondence should be addressed to Mohamed Shouman; shouman810@gmail.com Received 10 March 2019; Revised 24 May 2019; Accepted 18 June 2019; Published 27 August 2019 Academic Editor: Francesco Franco Copyright © 2019 Akram Zeid and Mohamed Shouman. is is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Control valves have always been recognised as being among the most crucial control equipment, commonly utilised in versatile engineering applications. Hence, the need has arisen to identify the flow characteristics inside the valve, together with the incurred vibration induced as a result of the flow passing through the valve. anks to the tangible and fast progress made in the field of the flow simulation and numerical techniques, it has become possible to better observe the behavior of the flow passing inside a valve with view to examining its performance. Hence, the paper at hand is mainly concerned with introducing the modeling and simulation of a control valve. On the contrary, the flow system in a control valve is marked by a complex structure and nonlinear characteristics. e reasons for those qualities could be attributed to its construction as well as the fluid flow phenomena as- sociated with it. It is especially for the sake of investigating and observing the flow characteristics, pertaining to a control valve equipped with different concave plug shapes and different openings, that the three-dimensional FSI simulation is conducted. In addition, it would be possible to make use of the obtained results relating to the three-dimensional analysis to achieve low noise and high efficiency improvement. Furthermore, all results will be validated on experimental grounds. 1.Introduction Control valves are intrinsic components that are integrated in several manufacturing operations and industrial pro- cesses. e function of such valves is to open and close so that they could connect or suspend a fluid supply in addition to manipulating the feeding of liquids and gases in a certain process. One of the fields that benefit from such valves is the steam feeding assigned the task of heating a vulcanizing press or for plastic injection. Moreover, the design and structure of the control valves are known to have versatile shapes and various materials, corresponding to the liquid, steam, or gas utilised in several factories. Analysis of flow passing through the control valve is of great importance in engineering practice because transient flow could have very negative consequences that could in certain cases ultimately lead to the failure of the system. e vibration causing this failure is generated from the force acting on the plug. e fluid characteristic behavior changes according to the plug geometry. us, reducing the vibration acting on the system could be attained via limiting the force working on the plug. So the problem now is choosing the best geometry which generates the minimum force when the fluid is passing through the control valve. e regulation characteristic of the control valve and the valve authority are the two basic parameters determining the shape of the final regulation curve and the quality of the control process in the pipework. e regulated device may be, for example, a heating system radiator, a steam turbine, a combustion engine, or any other element whose working effect, such as thermal power and rotational speed, can be adjusted quantitatively by changing the fluid flow rate. e relationship between the response of the controlled element and the input function, in the steady state, is usually referred to as the static (regulation) characteristic. Such relationships are generally nonlinear. For example, a twofold growth in Hindawi Shock and Vibration Volume 2019, Article ID 8724089, 14 pages https://doi.org/10.1155/2019/8724089