Numerical modeling of axisymmetric and three-dimensional flows in MEMS nozzles

A. A. Alexeenko, S. F. Gimelshein, D. A. Levin, R. J. Coilins

Research output: Contribution to conferencePaper

Abstract

A numerical study of three-dimensional effects on the performance of a micronozzle fabricated from flat silicon wafer is performed by both continuum and kinetic approaches. The nozzle operates in a low Reynolds numbers regime and viscous effects dominate the gas expansion. Thrust losses occur because the shear on the wall is greater in the nozzle of a flat configuration compared to an axisymmetric conical nozzle. Therefore, the prediction of the micronozzle performance based on axisymmetric or two-dimensional modeling can lead to significant design errors.

Original languageEnglish (US)
StatePublished - Jan 1 2000
Externally publishedYes
Event36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000 - Huntsville, AL, United States
Duration: Jul 16 2000Jul 19 2000

Other

Other36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000
CountryUnited States
CityHuntsville, AL
Period7/16/007/19/00

ASJC Scopus subject areas

  • Space and Planetary Science
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Control and Systems Engineering
  • Electrical and Electronic Engineering
  • Mechanical Engineering

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  • Cite this

    Alexeenko, A. A., Gimelshein, S. F., Levin, D. A., & Coilins, R. J. (2000). Numerical modeling of axisymmetric and three-dimensional flows in MEMS nozzles. Paper presented at 36th AIAA/ASME/SAE/ASEE Joint Propulsion Conference and Exhibit 2000, Huntsville, AL, United States.