...-dimensional unsteady Reynolds-averaged Navier– Stokes (URANS) equations were solved using the shear stress transport (SST) k– ω turbulence model. Furthermore, the entire flow domain of the vertical volute pump was considered to capture the boundary flow behavior accurately. The results illustrate...

...Yu Ito It is well known that cavitation breakdown, which is a phenomenon in which the pump head suddenly drops with a decrease in the inlet cavitation number, occurs in turbopumps. Especially in cryogenic pumps, cavitation breakdown occurs at a lower inlet cavitation number than that of ordinary...

... = pressure fluctuation described by water column (m) η = efficiency (%) References [1] Karassik , I. G. , Krutzxch , W. C. , Fraser , W. H. , and Messina , J. P. , 1985 , Pump Handbook , 2nd ed. , McGraw-Hill , New York . [2] Neumann , B. , 1991...

...Jun Zou; Pengfei Wang; Xiaodong Ruan; Xin Fu A method based on the medial axis transform (MAT) theory is presented to explore the laws of meridional profiles versus specific speeds for centrifugal pumps. Through extracting each pump’s MAT and transforming to two newly introduced variables, striking...

...Y. Dong; B. Lakshminarayana The relative flow in an automotive torque converter pump passage was measured at three locations inside the passage (mid-chord, 3/4-chord, and 4/4-chord) using a miniature high-frequency response five-hole probe in the pump rotating frame. A custom-designed brush-type...

...Steven M. Miner, Associate Professor, This paper presents the results of a study using coarse grids to analyze the flow in the impellers of an axial flow pump and a mixed flow pump. A commercial CFD code (FLOTRAN) is used to solve the 3-D Reynolds Averaged Navier Stokes equations in a rotating...