Development of a Valve-Less Meso-Scale Pump

Abstract

Development of a simple valve-less meso-scale pump as a physical model for operation of a similar micron-scale pump is discussed. The principle of operation of the pump is based on the differing flow resistance properties of nozzles and diffusers. The cavity, nozzle, diffuser and side reservoirs were fabricated by precision-machining of Lexan. The vibrating diaphragm assembly is a brass thin sheet and a piezoelectric disc that is attached to it thus forming one end of the cavity. Once the operational characteristics of the pump in the form of pressure drop vs. pumped mass flowrate is determined, the data can be compared to the predictions based on a theoretical model.

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Document Details

Document Type
Technical Report
Publication Date
Mar 08, 2004
Accession Number
ADA421140

Entities

People

  • Jay M. Khodadadi
  • Mattew Sweeney

Organizations

  • Auburn University

Tags

DTIC Thesaurus Topics

  • Assembly
  • Contracts
  • Deflection
  • Diffusers
  • Engineering
  • Flow
  • Frequency
  • Machining
  • Mechanical Engineering
  • Military Research
  • Precision
  • Reservoirs
  • Resistance
  • Resonance
  • Skeletal Muscle
  • Square Waves
  • Two Dimensional

Fields of Study

  • Engineering

Readers

  • Combustion and Flow Dynamics.
  • Computational Fluid Dynamics (CFD)
  • Mechanical Engineering/Mechanics of Materials.