TY - JOUR
T1 - Numerical Analysis of Transient Flow through a Pipe Orifice
T2 - (2nd Report, Step Response from Initinal Steady Flow)
AU - Hayase, Toshiyuki
AU - Cheng, Ping
AU - Hayashi, Satoru
N1 - Copyright:
Copyright 2016 Elsevier B.V., All rights reserved.
PY - 1994
Y1 - 1994
N2 - As a fundamental consideration in hydraulic valve dynamics, transient laminar flow through a pipe orifice has been studied via numerical analysis. In the previous report the authors performed time-dependent calculation from the initial stationary state under a suddenly imposed pressure gradient, and pointed out that the dynamic behavior is characterized by two time constants. The present report treats the transient flow starting from an initial steady flow. Effects of the recirculating flow and the stretched contraction flow region are investigated in comparison with the previous result.
AB - As a fundamental consideration in hydraulic valve dynamics, transient laminar flow through a pipe orifice has been studied via numerical analysis. In the previous report the authors performed time-dependent calculation from the initial stationary state under a suddenly imposed pressure gradient, and pointed out that the dynamic behavior is characterized by two time constants. The present report treats the transient flow starting from an initial steady flow. Effects of the recirculating flow and the stretched contraction flow region are investigated in comparison with the previous result.
KW - Computational Fluid Dynamics
KW - Fluid Power Systems
KW - Fluid Transients
KW - Pipe Orifice
KW - Time Constant
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U2 - 10.1299/kikaib.60.78
DO - 10.1299/kikaib.60.78
M3 - Article
AN - SCOPUS:0028337907
VL - 60
SP - 78
EP - 84
JO - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
JF - Nihon Kikai Gakkai Ronbunshu, B Hen/Transactions of the Japan Society of Mechanical Engineers, Part B
SN - 0387-5016
IS - 569
ER -