|Table of Contents|

Spectral-Fourier method for water hammer(PDF)

《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]

Issue:
2012年03期
Page:
7-11
Research Field:
研究与设计
Publishing date:

Info

Title:
Spectral-Fourier method for water hammer
Author(s):
CHEN Hong-yu;  LIU Hong-jun;  LIU Shang
Xi’an Aerospace Propulsion Institute, Xi’an 710100, China
Keywords:
liquid rocket engine;  propellant transfer;  spectral-Fourier method
PACS:
V434-34
DOI:
-
Abstract:
The mathematical model of fluid transient inside propellant pipelines is introduced. A new algorithm is proposed to solve the nonlinear hyperbolic partial differential equations for gover- ning the fluid transient by spectral-Fourier method. The method is presented in detail with an illustration of the water hammer in a simple piping system connecting tank and valve. The water hammer and pressure oscillation formed in the pipeline when its valve is suddenly shut down were solved with the method. The corresponding simulation results are given and compared with the results obtained by method of characteristics and finite element method issued previously. The high frequency oscillation problem in the numerical calculation is also discussed.

References:

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Last Update: 1900-01-01