Hydraulics of abrupt contraction aerator on stepped chutes

2020 ◽  
pp. 1-6
Author(s):  
Fei Ma ◽  
Jian-Hua Wu
Keyword(s):  
Abrupt Contraction

scholarly journals S051013 Flow-Induced Structure Change of Aqueous Solution of Polymer in an Abrupt Contraction Channel

2013 ◽  
Vol 2013 (0) ◽  
pp. _S051013-1-_S051013-4
Author(s):  
Taisuke SATO ◽  
Kazunori YASUDA ◽  
Yukiharu IWAMOTO ◽  
Motosuke SOGO ◽  
Takatsune NARUMI
Keyword(s):  
Aqueous Solution ◽  
Structure Change ◽  
Abrupt Contraction ◽  
Induced Structure

Flow behavior of Cellulose Nano Fiber Suspension in Planar Channels with an Abrupt Contraction

2020 ◽  
Vol 2020 (0) ◽  
pp. OS01-05
Author(s):  
Syuya NAMATAME ◽  
Taisuke SATO ◽  
Takatsune NARUMI ◽  
Akiomi USHIDA
Keyword(s):  
Flow Behavior ◽  
Fiber Suspension ◽  
Nano Fiber ◽  
Abrupt Contraction

scholarly journals Effects of flexibility and entanglement of sodium hyaluronate in solutions on the entry flow in micro abrupt contraction-expansion channels

2019 ◽  
Vol 31 (7) ◽  
pp. 072005 ◽  
Author(s):  
Ruri Hidema ◽  
Taiki Oka ◽  
Yoshiyuki Komoda ◽  
Hiroshi Suzuki
Keyword(s):  
Sodium Hyaluronate ◽  
Abrupt Contraction

Convergent Flow Pattern at an Abrupt Contraction

1984 ◽  
Vol 110 (6) ◽  
pp. 894-910
Author(s):  
Cheng‐lung Chen ◽  
Babak Etemadi
Keyword(s):  
Flow Pattern ◽  
Abrupt Contraction ◽  
Convergent Flow

Flow and Heat Transfer Past a Sudden Contraction With a Porous Insert Using Linear and Non-Linear Turbulence Models

2004 ◽  
Author(s):  
Marcelo Assato ◽  
Marcelo J. S. de Lemos
Keyword(s):  
Heat Transfer ◽  
Turbulence Models ◽  
Local Heat Transfer ◽  
Local Heat ◽  
Porous Insert ◽  
Macroscopic Models ◽  
Flow And Heat Transfer ◽  
Non Linear ◽  
Abrupt Contraction ◽  
Stream Lines

This work presents a numerical investigation for the turbulent flow and heat transfer in an abrupt contraction channel with a porous material placed in a flow passage. The channel has a contraction rate of 3:2. Results for the hybrid medium were obtained using linear and non-linear k-ε macroscopic models. It was used an inlet Reynolds number of Re = 132000 based on the height of the step. Parameters such as porosity, permeability and thickness of the porous insert were varied in order to analyze their effects on the flow pattern. The results of local heat transfer, friction coefficient and stream lines obtained by the two turbulence models were compared for the cases without and with porous insertion of thickness a/H=0.083, 0.166 and 0.250, where H is the step height. Insert porosity of varied between 0.85 and 0.95 with permeability in the range 10−6–10−2 m2.

Early onset of sound in Rijke tube with abrupt contraction

2013 ◽  
Vol 133 (5) ◽  
pp. 3557-3557
Author(s):  
Konstantin Matveev ◽  
Rafael Hernandez
Keyword(s):  
Early Onset ◽  
Rijke Tube ◽  
Abrupt Contraction
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