A Numerical Investigation of the Startup Transient in a Wave Rotor-Reference-Cited by-同舟云学术

A Numerical Investigation of the Startup Transient in a Wave Rotor

Published:1997-07-01 Issue:3 Volume:119 Page:676-682
ISSN:0742-4795
Container-title:Journal of Engineering for Gas Turbines and Power
language:en
Short-container-title:

Author:

Paxson D. E.¹

Affiliation:

1. NASA Lewis Research Center, Cleveland, OH 44135

Abstract

The startup process is investigated for a hypothetical four-port wave rotor, envisioned as a topping cycle for a small gas turbine engine. The investigation is conducted numerically using a multi-passage, one-dimensional CFD based wave rotor simulation in combination with lumped volume models for the combustor, exhaust valve plenum, and rotor center cavity components. The simulation is described and several startup transients are presented which illustrate potential difficulties for the specific cycle design investigated. In particular it is observed that, prior to combustor light-off, or just after, the flow through the combustor loop is reversed from the design direction. The phenomenon is demonstrated and several possible modification techniques are discussed that avoid or overcome the problem.

Publisher

ASME International

Subject

Mechanical Engineering,Energy Engineering and Power Technology,Aerospace Engineering,Fuel Technology,Nuclear Energy and Engineering

Link

http://asmedigitalcollection.asme.org/gasturbinespower/article-pdf/119/3/676/5615874/676_1.pdf

Reference9 articles.

1. Klapproth, J. F., 1960, “The Wave Engine Project,” General Electric Quarterly Reports, R60FPD284, R60FPD419, & R60FPD585.

2. Moritz, R., 1985, “Rolls-Royce Study of Wave Rotors 1965–1970,” Shreeve, R. P., and Mathur, A., eds., Proc. 1985 ONR/NAVAIR Wave Rotor Research and Technology Workshop, Report #NPS-67-85-008, Naval Post-Graduate School, Monterey, CA.

3. Paxson, D. E., 1995a, “A Numerical Model for Dynamic Wave Rotor Analysis,” AIAA Paper No. 95-2800.

4. Paxson, D. E., 1995b, “Recent Improvements to and Validation of the One Dimensional NASA Wave Rotor Model,” NASA TM 106913.

5. Paxson D. E. , 1995c, “Comparison Between Numerically Modeled and Experimentally Measured Wave-Rotor Loss Mechanisms,”AIAA Journal of Propulsion and Power, Vol. 11, pp. 908–914.

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