Numerical Simulation of Low Specific Speed American Petroleum Institute Pumps in Part-Load Operation and Comparison With Test Rig Results

作者：Benigni Helmut^*; Jaberg Helmut; Yeung Hoi; Sali**ury Tony; Berry Owen; Collins Tim

来源：Journal of Fluids Engineering-Transactions of the ASME, 2012, 134(2): 024501.

DOI：10.1115/1.4005769

A low specific speed centrifugal pump is investigated by means of numerical simulation, especially in deep part-load operation. The 3D computational fluid dynamics (CFD) model includes the front and back cavities, a 360 deg impeller and a double volute, as well as suction and pressure pipes. Stationary calculations show a strong clocking effect and lead to an overprediction of the head close to zero flow rate. A one-dimensional estimation of the head at the closed valve operation point is compared to the 3D CFD results and also a series of test rig results. In a second step, the whole head curve is calculated by a fully transient calculation using the shear stress transport-scale-adaptive simulation (SST-SAS) turbulence model. For the net positive suction head (NPSH) estimation, the histogram method is applied providing good correlation to the test rig measurement-as do the head curve and the efficiency. [DOI: 10.1115/1.4005769]

• 出版日期2012-2