An experimental study of zero-shift in a straight-tube Coriolis meter

2020 ◽  
Vol 76 ◽  
pp. 101843
Author(s):  
C.L. Ford
Keyword(s):  
Experimental Study ◽  
Straight Tube ◽  
Zero Shift

Comparative Experimental Study on Performance of Corrugated Tube and Straight Tube Heat Exchanger

2012 ◽  
Vol 560-561 ◽  
pp. 156-160
Author(s):  
Lin Ping Lu ◽  
Liang Ying
Keyword(s):  
Heat Transfer ◽  
Experimental Study ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Heat Exchangers ◽  
Straight Tube ◽  
Lower Stress ◽  
Shell Side ◽  
Tube Heat Exchanger ◽  
Corrugated Tube

The experiments on heat transfer coefficient, pressure drop and thermal stress were done to heat exchangers with corrugated tubes and staight tubes. By analyising and comparing the heat transfer coeffient, pressure drop in tube side and shell side and axial force and stress, some conclusions can be conducted that the corrugated tube heat exchanger has better heat transfer coeffient, higher pressure drop and much lower stress caused by temperatur difference, also, it has obvious advantages under the circumstance of low Reynolds number and high temperature difference.

Observations of unsteady flow arising after vortex breakdown

1970 ◽  
Vol 41 (4) ◽  
pp. 727-736 ◽  
Author(s):  
John J. Cassidy ◽  
Henry T. Falvey
Keyword(s):  
Experimental Study ◽  
Reynolds Number ◽  
Angular Momentum ◽  
Momentum Flux ◽  
Vortex Breakdown ◽  
Rotating Flow ◽  
Straight Tube ◽  
Dimensionless Form ◽  
Helical Vortex ◽  
Tube Geometry

In rotating flow moving axially through a straight tube, a helical vortex will be generated if the angular momentum flux is sufficiently large relative to the flux of linear momentum. This paper describes an experimental study of the occurrence, frequency and peak-to-peak amplitude of the wall pressure generated by this vortex. The experimental results are displayed in dimensionless form in terms of a Reynolds number, a momentum parameter and tube geometry.

Experimental study on cross flow induced vibration response of four-span straight tube bundle with TSP or AVB supports

2019 ◽  
Vol 349 ◽  
pp. 8-19 ◽  
Author(s):  
Zhengting Quan ◽  
Kefeng Zhang ◽  
Zhenqin Xiong ◽  
Hongbiao Zu ◽  
Hanyang Gu ◽  
...  
Keyword(s):  
Experimental Study ◽  
Tube Bundle ◽  
Cross Flow ◽  
Vibration Response ◽  
Straight Tube ◽  
Flow Induced Vibration

Preliminary Experimental Study on Multi-Parameter Measurement of Fluid Flow by Vibrating Tube

2012 ◽  
Vol 241-244 ◽  
pp. 70-74
Author(s):  
X.Z. Zhang
Keyword(s):  
Experimental Study ◽  
Fluid Flow ◽  
Mass Flow Rate ◽  
Flow Rate ◽  
Straight Tube ◽  
Two Phase ◽  
Flow Parameters ◽  
Density Flow ◽  
Pipe Line ◽  
Displacement Transducers

A tube conveying flow under vibration can induce a number of interesting phenomena, which can be used to measure certain fluid and flow parameters. For example, Coriolis flow meter which uses vibrating tube is now acting as a key mass flow rate instrument in industry. However, the complexity of flow often requires several parameters to be measured in one time. We studied the vibration behavior of a single rigid straight tube connected with elastic bellows at each end in a flow pipe line. Electrical exciters were used to force the tube to vibrate. Displacement transducers were used to measure the amplitudes and phases of tube’s vibration. Flows through the tube were water or water-air two-phase. The preliminary experiment showed that density, flow rate, viscosity, as well as pressure, which are important parameters for the flow, could possibly be measured in the same vibrating tube.

Experimental Study on Pseudo-Plastic Behavior for Film Foam Flow in a Vertical Tube

2011 ◽  
Vol 221 ◽  
pp. 194-199 ◽  
Author(s):  
Dong Xing Du ◽  
Ying Ge Li ◽  
Shi Jiao Sun
Keyword(s):  
Experimental Study ◽  
Oil Recovery ◽  
Flow Behavior ◽  
Petroleum Industry ◽  
Vertical Tube ◽  
Mobility Control ◽  
Plastic Behavior ◽  
Straight Tube ◽  
Flow Behavior Index ◽  
Foam Flow

Foam has been widely used as a mobility control agent for improved oil recovery, gas blocking and acid diversion during matrix stimulation in petroleum industry. For understanding foam rheology in porous media, this paper reports an experimental study on film foam flow characteristics in a vertical straight tube. Foam is treated as pseudo-plastic fluid and its non-Newtonian behavior is investigated based on power law constitutive model. It is observed the film foam flow shows clear shear-thinning behavior, with flow consistency coefficient of K=0.11 and flow behavior index of n=0.62. The apparent viscosity of flowing film foam is under the shear rate of 50s-1, which is 25 times higher than the single phase water.

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