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RISUnsteady Flow Structure and Global Variables in a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A relationship between the global variables and the dynamic flow structure numerically obtained for a low specific speed centrifugal pump is presented in this paper. A previously developed ...
Discussion: “A Novel Explicit Equation for Friction Factor in Smooth and Rough Pipes” (Avci, A., and Karagoz, I., 2009, ASME J. Fluids Eng., 131, p. 061203)
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper shows a comparison of the most classic and historical formulations to obtain the friction factor for cylindrical pipes with novel approaches. Although there has been some evolution ...
The Effect of Impeller Cutback on the Fluid-Dynamic Pulsations and Load at the Blade-Passing Frequency in a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A study is presented on the fluid-dynamic pulsations and the corresponding dynamic forces generated in a centrifugal pump with single suction and vaneless volute due to blade-volute interaction. ...
The Effect of the Operating Point on the Pressure Fluctuations at the Blade Passage Frequency in the Volute of a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An experimental investigation is presented which analyzes the unsteady pressure distribution existing in the volute of a conventional centrifugal pump with a nondimensional specific speed of 0.48, ...
Numerical Simulation of the Dynamic Effects Due to Impeller-Volute Interaction in a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper shows the capability of a numerical simulation in capturing the dynamic and unsteady flow effects inside a centrifugal pump due to the impeller-volute interaction. The object of the ...
Steady and Unsteady Radial Forces for a Centrifugal Pump With Impeller to Tongue Gap Variation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Experimental and numerical studies are presented on the steady and unsteady radial forces produced in a single volute vaneless centrifugal pump. Experimentally, the unsteady pressure distributions ...
Decomposition of Deterministic Unsteadiness in a Centrifugal Turbomachine: Nonlinear Interactions Between the Impeller Flow and Volute for a Double Suction Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Modern designs for centrifugal pumps consider flow unsteadiness as a main concern. The averaged impact of blade to blade structures and impeller-tongue or impeller-diffuser interactions is considered ...
Unsteady Flow Pattern Characteristics Downstream of a Forward-Curved Blades Centrifugal Fan
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The results of an experimental investigation of the flow at two exit radial locations of a forward-curved blades centrifugal fan are presented. Hot wire techniques were used to obtain steady ...
Unsteady Flow Patterns for a Double Suction Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The flow in a double suction centrifugal pump is presented in this paper. The static performance of the machine has been obtained in a proper test rig, and the results have been compared ...
Global Measurements and Hysteresis-Based NPSH Acoustic Approach for the Experimental Study of Cavitation in a Centrifugal Pump
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: One of the main drawbacks of centrifugal pumps is the reduction of their operation range to avoid cavitation. This undesired phase change phenomenon takes place as a result of high flow velocities attained in the impeller, ...