... 2017 12 07 2018 Electro-hydrodynamic flows PIV Pumps Turbomachines A strong electric field applied between the two electrodes initiates a corona discharge which results in ionization of gas molecules. The gaseous ion flux along the electric field lines induces ionic wind, also...

...-structure interaction Pumps Turbomachines Designers implement grooved liquid annular seals to reduce leakage. Grooved seals also decrease the likelihood of seizures in the case of rotor-stator rub (when compared to a smooth seal) due to the smaller surface area. In electrical submersible pumps...

... . Manuscript received October 18, 2017; final manuscript received June 8, 2018; published online June 29, 2018. Assoc. Editor: Hui Hu. 18 10 2017 08 06 2018 Cavitation Computational fluid dynamics Pumps Turbulence Turbomachines Cavitation in centrifugal pumps is considered...

... allowed the inducer to operate at lower inlet pressures, increasing the suction performance of the inducer. Cavitation Computational fluid dynamics Multiphase flows Pumps Turbomachines Extreme cavitating conditions that prevail when high-speed pumps operate at low inlet pressures adversely...

... that the above assumptions of Kanki et al. [ 9 ] are acceptable for the modeling of Thomas/Alford force from Fig. 7 . Aerodynamics Pumps Stability Turbomachines Transition For rocket engines, reliability is the key design issue, given the very costly payloads and the task of placing...

...; final manuscript received May 10, 2018; published online June 26, 2018. Assoc. Editor: Wayne Strasser. 08 10 2017 10 05 2018 Experimental techniques Hydrodynamics Pressure drop Pumps Turbomachines The focus on pump working as turbine (PAT) has drawn attention...

... Unsteady flows Turbomachines Transient conditions, such as a startup or a runaway, imply a time variation of the operating parameters of a hydraulic turbine (e.g., flow rate, runner rotation speed and, in some cases, guide vane opening). Transient conditions typically reduce the life expectancy...

... (e.g., the European market) or to provide short-time production to fulfill spot-market contracts. Computational fluid dynamics Fluid instability Hydrodynamics Pumps Rotating fluids Vortices Turbomachines Copyright © 2018 by ASME 2018 0098-2202/2018/140(11)/111104/18/ $25.00 ...

... Turbomachines Oscillatory and pulsatile flows are ubiquitous in nature, and the potential for using unsteady flows in a wide range of engineering applications has long been recognized. One of the earliest uses of pulsatile flow was during the World War II in the making of the German V-1 Flying “Buzz...

... of the load rejection transient. Hence, it is important to investigate them to promote the development of pumped storage power generation technology and ensure stable operation of pumped storage power plants. Computational fluid dynamics Fluid transients Pumps Unsteady flows Turbomachines...

.... 09 10 2017 17 04 2018 Cavitation Compressible flows Computational fluid dynamics Multiphase flows Pumps Rotating fluids Turbomachines References [1] Li , X. , Yuan , S. , Pan , Z. , Yuan , J. , and Fu , Y. , 2013 , “ Numerical Simulation...

... dynamics Pumps Shocks Supersonic flows Turbomachines Condensation shocks are encountered in steam nozzles and in blade passages of the last stages of steam turbines. In addition, condensation shocks are also seen in supersonic wind tunnels owing to the water vapor present in the incoming air...

... September 19, 2017; final manuscript received March 9, 2018; published online May 2, 2018. Assoc. Editor: Wayne Strasser. 19 09 2017 09 03 2018 Fluid transients Pumps Unsteady flows Turbomachines The objectives of energy saving and emission reduction have elicited extensive...

... received February 18, 2018; published online April 19, 2018. Assoc. Editor: Matevz Dular. 19 10 2017 18 02 2018 Cavitation Hydrodynamics Pumps RANS simulations Turbomachines Intense vibration or malfunctioning can result from abnormal flow phenomena that occur when...

.... Rework to the leading edge is discussed in Ref. [ 1 ]. The focus in the current study is on rework of the trailing edge for low specific-speed centrifugal pumps. Pumps Turbomachines 12 07 2017 25 01 2018 Contributed by the Fluids Engineering Division of ASME for publication...

...Pascal Bader; Manuel Pschernig; Wolfgang Sanz; Jakob Woisetschläger; Franz Heitmeir; Walter Meile; Günter Brenn Flow in turbomachines is generally highly turbulent. Nonetheless, boundary layers may exhibit laminar-to-turbulent transition, and relaminarization of the turbulent flow may also occur...

... of results of field tests and TOPSYS simulations: ( a ) OP1 and ( b ) OP2 Fluid transients Pumps Turbomachines 12 06 2017 05 01 2018 Contributed by the Fluids Engineering Division of ASME for publication in the J OURNAL OF F LUIDS E NGINEERING . Manuscript received June...

... on geometry added to the stator and the rotor surfaces. As a consequence, the geometry of the intricate flow path is essential for good sealing and rotor dynamics performance. Computational fluid dynamics Gas dynamics Pumps Turbomachines 26 09 2016 24 01 2018 Contributed...

... . Manuscript received May 7, 2017; final manuscript received January 25, 2018; published online March 16, 2018. Assoc. Editor: Devesh Ranjan. 07 05 2017 25 01 2018 Hydrodynamics Pumps Turbomachines Pumps with low capacity and high head are needed in many process applications...

... received June 29, 2017; final manuscript received January 17, 2018; published online February 16, 2018. Assoc. Editor: Riccardo Mereu. 29 06 2017 17 01 2018 Computational fluid dynamics Fluid-structure interaction Pumps Unsteady flows Turbomachines The variations...