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A Time-Domain Method for the Determination of Unsteady Pressure with a Tube of Constant Cross-Section

✍ Scribed by K. Ehrendorfer; F. Ottitsch; H. Sockel

Publisher
Elsevier Science
Year
1998
Tongue
English
Weight
233 KB
Volume
142
Category
Article
ISSN
0021-9991

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✦ Synopsis

In this paper a new method for the determination of unsteady pressure with a tubing system is shown. The conventional methods try either to optimize the frequency behaviour of the tubing system by implementing restrictors or instantaneous jumps in the cross-sectional area or to correct the measurement by using the transfer function of the tubing system. The new method presented here simply uses a tube with constant, circular cross-section and solves the governing fluid-mechanic equations in the time-domain by numerically propagating in the direction of the spatial axis.

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