Prediction of Flow coefficient according to accuracy of opening Bellows Seal Valve

벨로우즈 실 밸브의 개폐정도에 따른 유량계수의 예측

The valve is used on control of flow in a ship. Flow coefficient of valve is very importance in the design of valve. In this paper, three-dimensional computer simulations by commercial code CFX were conducted to observe the valve type and to measure flow coefficient when valves with various angles and uniform incoming velocity were used in a piping system. By contrast, a group of experimental data is used to compare with the data obtained by CFX simulation to investigate the validity of numerical method.