Simulation of Flow Field and Calculation of Moment on Valve Plate for Butterfly Valve

In order to control the flow rate in a butterfly valve accurately, the moment, which acts on the rotation axis of valve plate, caused by flowing fluid must be considered. Taking air as the medium, the parameters of internal flow fields, such as the velocity and pressure, are simulated by CFD for a standard butterfly valve. The distribution of velocity and pressure fields that changes with various openings and a curve of aerodynamic moment are obtained. The results show that, as the opening of valve goes larger, the resultant moment on valve plate is monotonically increased. At the opening of 70 around, the moment reaches its maximum. After the opening of 70 the moment begins monotonically decreasing and the resultant moment is close to zero at 90.

[1]  Yong Tang,et al.  CFD-based Study of Velocity Distribution among Multiple Parallel Microchannels , 2009, J. Comput..

[2]  Feng Liu,et al.  Weight Based Multiple Support Vector Machine Identification of Peer-to-Peer Traffic , 2010, J. Networks.

[3]  Park Youngchul,et al.  Numerical Analysis of Large Diameter Butterfly Valve , 2009 .

[4]  C. Solliec,et al.  Aerodynamic Torque of a Butterfly Valve—Influence of an Elbow on the Time-Mean and Instantaneous Aerodynamic Torque , 2000 .

[5]  Peiman Naseradinmousavi,et al.  Nonlinear mathematical modeling of butterfly valves driven by solenoid actuators , 2011 .

[6]  D. Birchall,et al.  Computational Fluid Dynamics , 2020, Radial Flow Turbocompressors.

[7]  Gerald A. Schohl,et al.  CFD Prediction and Validation of Butterfly Valve Hydrodynamic Forces , 2004 .

[8]  Ming-Jyh Chern,et al.  Control of Volumetric Flow-Rate of Ball Valve Using V-Port , 2004 .

[9]  Zachary Leutwyler,et al.  A CFD Study of the Flow Field, Resultant Force, and Aerodynamic Torque on a Symmetric Disk Butterfly Valve in a Compressible Fluid , 2008 .

[10]  Xu Wu,et al.  An Improved Mixed Gas Pipeline Multivariable Decoupling Control Method Based on ADRC Technology , 2012, J. Comput..

[11]  Gang Zheng,et al.  Numerical Simulation and Evaluation of the Oil Film Flow Field in Hydro-Viscous Drive , 2013 .

[12]  Huixia Jin,et al.  Simulation and Heat Transfer Calculation on A Journal Bearing With A Center Circumferential Groove in Load Zone , 2013 .

[13]  Ke Xiong,et al.  QoS-enhanced TNPOSS Network Model and its E2E Delay Bound for Multimedia Flows , 2009, J. Networks.

[14]  Lin Wang,et al.  Multidisciplinary optimization of a butterfly valve. , 2009, ISA transactions.