Research output: Contribution to journal › Conference article › peer-review
Experimental investigation of the influence of flow rate pulsations on the rivulet flow regime. / Dekhtyar, R. A.; Slesareva, E. Yu; Ovchinnikov, V. V.
In: Journal of Physics: Conference Series, Vol. 1105, No. 1, 012091, 28.11.2018.Research output: Contribution to journal › Conference article › peer-review
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TY - JOUR
T1 - Experimental investigation of the influence of flow rate pulsations on the rivulet flow regime
AU - Dekhtyar, R. A.
AU - Slesareva, E. Yu
AU - Ovchinnikov, V. V.
N1 - Publisher Copyright: © Published under licence by IOP Publishing Ltd.
PY - 2018/11/28
Y1 - 2018/11/28
N2 - The influence of flow rate pulsations on the rivulet flow regime has been investigated. The experiments were carried out on the underside of a smooth polyethylene plate. The investigation has shown that the influence of flow rate pulsations on the stream patterns is determined by flow peculiarities in the steady-state regime. Disturbances arising from pulsations of liquid flow rate can affect the stream liquid pattern of the rivulet. Such disturbance can cause the development of latent instability at individual points situated along the length of rivulet. The greatest effect on the stream structure is observed for the flow rate pulsation at liquid discharge with the ambiguity of rivulet regime. If the flow rate pulsations affect periodically the meandering rivulet, then it is possible to reduce the degree of meandering and convert the stream into the straight rivulet. In the regime of unstable meandering, it is impossible to identify correctly the effects caused by the flow rate pulsations at the initial area of the rivulet because of great self-acting pulsations of flow rate appearing in different sections along the rivulet.
AB - The influence of flow rate pulsations on the rivulet flow regime has been investigated. The experiments were carried out on the underside of a smooth polyethylene plate. The investigation has shown that the influence of flow rate pulsations on the stream patterns is determined by flow peculiarities in the steady-state regime. Disturbances arising from pulsations of liquid flow rate can affect the stream liquid pattern of the rivulet. Such disturbance can cause the development of latent instability at individual points situated along the length of rivulet. The greatest effect on the stream structure is observed for the flow rate pulsation at liquid discharge with the ambiguity of rivulet regime. If the flow rate pulsations affect periodically the meandering rivulet, then it is possible to reduce the degree of meandering and convert the stream into the straight rivulet. In the regime of unstable meandering, it is impossible to identify correctly the effects caused by the flow rate pulsations at the initial area of the rivulet because of great self-acting pulsations of flow rate appearing in different sections along the rivulet.
KW - WATER SOLUTION
UR - http://www.scopus.com/inward/record.url?scp=85058216095&partnerID=8YFLogxK
U2 - 10.1088/1742-6596/1105/1/012091
DO - 10.1088/1742-6596/1105/1/012091
M3 - Conference article
AN - SCOPUS:85058216095
VL - 1105
JO - Journal of Physics: Conference Series
JF - Journal of Physics: Conference Series
SN - 1742-6588
IS - 1
M1 - 012091
T2 - 34th Siberian Thermophysical Seminar Dedicated to the 85th Anniversary of Academician A. K. Rebrov, STS 2018
Y2 - 27 August 2018 through 30 August 2018
ER -
ID: 17852846