..., with the scallop depth ratio exerting influences on loss, reaching a maximum of 8.1%. The current scallop loss model overlooks the consideration of the total arc length ratio of scallops to the circumference, presenting a limitation, and the maximum relative deviation from numerical simulation results is observed...

...-mail:  ccanpolat@cu.edu.tr 29 09 2022 28 02 2023 24 03 2023 flow control laminar flow circular cylinder perforated cylinder numerical simulation Çukurova vniversitesi 10.13039/501100002964 FBA-2019-12419 Although a vast amount of studies are available in the open...

... is numerically simulated. The dual intakes are subjected to perpendicular approach flow making the withdrawal condition more complex. The interface of the air–water phase is tracked using the volume of fluid (VOF) model, both coupled and decoupled with the level-set method with different spatial discretization...

... of rotor system [ 2 ]. National Natural Science Foundation of China 10.13039/501100001809 52206055 porous journal bearing lubrication model numerical simulation sampling method artificial neural network multi-objective optimization 15 07 2022 19 02 2023 13 03...

... and selection of centrifugal pumps. Numerical simulations of the different cases for trimming the impeller diameter and the original case were performed with the commercial software ansys cfx . Throughout the simulation, the Reynolds-averaged Navier–Stokes equations were discretized by the finite volume...

... blades and the formation of energy-intensive recirculation zones. So far, it is not clear how such flow separation may initiate and develop. This study combines state-of-the-art experiments and numerical simulations to explore the onset of flow separation in centrifugal impellers. In particular, a high...

... for numerical simulation under transient conditions. The boundary conditions of the inlet and outlet are set by the experiment. The boundary conditions are defined by using user-defined functions. The convergence accuracy is 10 −4 . The simulation time is 23 s, that is, the single operation time of the valve...

.../s12206-016-1021-9 [45] Vu , T. V. , and Wells , J. C. , 2017 , “ Numerical Simulations of Solidification Around Two Tandemly-Arranged Circular Cylinders Under Forced Convection ,” Int. J. Multiph. Flow , 89 , pp. 331 – 344 . 10.1016/j.ijmultiphaseflow.2016.11.007 [46...

... clearance numerical simulation flow pattern National Natural Science Foundation of China 10.13039/501100001809 52079058 Sewage pumps have been widely used in municipal, industrial, and environmental engineering and many other fields [ 1 – 3 ]. The transport medium of sewage pumps...

... with different structures were studied by experiments and numerical simulations. Research shows that the flow separation occurs at the edge of the valve disk, and the drag of the valve disk fluctuates nonperiodically with time. Under different opening degrees, the velocity distribution downstream of the valve...

... scheme. In order to numerically simulate water hammers in pipe series, the improved junction boundary condition was established. It involves assigning two sets of values, which describe flow parameters, to the connection node thus causing it to act as two separate nodes. The numerical model...

... flapping foil. e-mail:  1204201936@qq.com e-mail:  xjsun@usst.edu.cn 16 10 2020 25 01 2021 09 04 2021 flapping foil energy extraction circulation control energy consumption numerical simulation The demand for energy is rapidly increasing along with the global...

... the theoretical model assumes a spherical shape of the deformed cell, whereas the numerical simulation predicts a not so perfect spherical shape in the head and tail portions, there is some disagreement between our predicted numerical values and the theory. Nevertheless, the aforementioned comparison serves...

...-mail:  taojy1018@foxmail.com e-mail:  liyi0511@163.com e-mail:  eric0575@163.com e-mail:  zhuzuchao@zstu.edu.cn 21 10 2019 02 07 2020 07 08 2020 butterfly valve shaft diameter hydrodynamic torque fluctuation numerical simulation Availability of energy is one...

... with the sediment-laden water. In this research, the runner's physical erosion wear mechanism is revealed using numerical simulations and the results are compared with damaged runners from Francis turbines in the Jhimruk Hydroelectric Center (JHC). Simulations show that high erosive wear occurs near the blade...

...Javid Zohrabi Chakaneh; Seyed Javad Pishbin; Alireza Sheikhi Lotfabadi; Mohammad Passandideh-Fard In this paper, the impact of distilled water drops on hydrophobic cylinders is characterized using both experiments and numerical simulations. Water drops of 2.54 mm in diameter impact with a velocity...

... with the optimized parameters is tested experimentally. Compared with experiments, numerical simulations can provide a substantially detailed analysis of the electrical and flow characteristics of ionic wind pump at a significantly low cost. Various two-dimensional (2D) numerical techniques have been used...

... ratio. Otherwise, the pressure drop reduces linearly by increasing the valve ratio. unequal-sized droplets T-junction with valve numerical simulation VOF nano 3D Droplet based micro- and nano-fluidic systems have found various applications in many industries. These systems allow one...

.... , and Yang , K.-S. , 2006 , “ Direct Numerical Simulation of Turbulent Flow Around a Rotating Circular Cylinder ,” ASME J. Fluids Eng. , 129 (1), pp. 40 – 47 . 10.1115/1.2375133 [13] Yoon , D.-H. , Yang , K.-S. , and Bremhorst , K. , 2011 , “ Effects of Schmidt Number on Turbulent...

... within the computational domain as cavitation occurs and develops, a zero value of the vapor volume fraction has been assigned at the inflow boundary. Since the cavitating flow in the model centrifugal pump were numerically simulated based on steady-state methods, the frozen rotor mode was chosen...