Computational study of a novel valveless design of a macroscale piston pump

Authors

  • Tomáš Machů Faculty of Mechanical Engineering, Brno University of Technology
  • František Pochylý Faculty of Mechanical Engineering, Brno University of Technology
  • Jan Šulc Faculty of Civil Engineering, Institute of Water Structures, Brno University of Technology

DOI:

https://doi.org/10.24132/acm.2019.468

Keywords:

valveless piston pump, fluidic diodes, CFD, dissipation function

Abstract

This paper deals with a novel valveless piston pump, which is using modified Venturi diodes as a replacement for common check valves. The pump characteristic was obtained from CFD simulations in ANSYS Fluent software. The simulations were carried out on a simplified 2D geometry model of the pump. The dependencies of the volumetric efficiency of the pump on parameters of piston motion (frequency and amplitude) and backpressure are the results of the simulations. The principle of the pump is based on different rates of dissipation in the discharge and the suction diode. The paper also presents a qualitative analysis of dissipation function for turbulent flow, which provides further insight into the principle of valveless pumping.

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Published

30-Jun-2019

Issue

Vol. 13 No. 1 (2019)

Section

Articles

License

Copyright (c) 2019 Applied and Computational Mechanics

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.

How to Cite

“Computational study of a novel valveless design of a macroscale piston pump” (2019) Applied and Computational Mechanics, 13(1). doi:10.24132/acm.2019.468.