Sensitivity of flow rate prediction through low aspect ratio RC shear walls due to variable mesh selection

2006 ◽  
Vol 236 (10) ◽  
pp. 1029-1038
Author(s):  
T.C. Hutchinson ◽  
T. Wang
Keyword(s):  
Aspect Ratio ◽  
Flow Rate ◽  
Shear Walls ◽  
Low Aspect Ratio ◽  
Rate Prediction ◽  
Variable Mesh ◽  
Mesh Selection

Influence of Blade Sweep on the Energetic Behavior of Axial Flow Turbomachinery Rotors at Design Flow Rate

2004 ◽  
Author(s):  
Ja´nos Vad ◽  
Ali R. A. Kwedikha ◽  
Helmut Jaberg
Keyword(s):  
Aspect Ratio ◽  
Flow Rate ◽  
Axial Flow ◽  
Pressure Rise ◽  
Design Flow ◽  
Tip Clearance ◽  
Total Efficiency ◽  
Low Aspect Ratio ◽  
Axial Velocity Profile ◽  
Bladed Rotor

Experimental and computational studies were carried out in order to survey the energetic aspects of forward and backward sweep in axial flow rotors of low aspect ratio blading for incompressible flow. It has been pointed out that negative sweep tends to increase the lift, the flow rate and the ideal total pressure rise in the vicinity of the endwalls. Just the opposite tendency was experienced for positive sweep. The local losses were found to develop according to combined effects of sweep near the endwalls, endwall and tip clearance losses, and profile drag influenced by re-arrangement of the axial velocity profile. The forward-swept bladed rotor showed reduced total efficiency compared to the unswept and swept-back bladed rotors. This behavior has been explained on the basis of analysis of flow details. It has been found that the swept bladings of low aspect ratio tend to retain the performance of the unswept datum rotor even in absence of sweep correction.

scholarly journals Seismic Behavior of Low-Aspect-Ratio Reinforced Concrete Shear Walls

2015 ◽  
Vol 112 (5) ◽  
Author(s):  
Bismarck N. Luna ◽  
Jonathan P. Rivera ◽  
Andrew S. Whittaker
Keyword(s):  
Reinforced Concrete ◽  
Aspect Ratio ◽  
Seismic Behavior ◽  
Shear Walls ◽  
Low Aspect Ratio

Ultra-low aspect ratio spiral microchannel with ordered micro-bars for flow-rate insensitive blood plasma extraction

2019 ◽  
Vol 287 ◽  
pp. 320-328 ◽  
Author(s):  
Shaofei Shen ◽  
Fangjuan Zhang ◽  
Shuting Wang ◽  
Jiangran Wang ◽  
Dandan Long ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Blood Plasma ◽  
Flow Rate ◽  
Low Aspect Ratio ◽  
Spiral Microchannel ◽  
Plasma Extraction

Inertial Focusing and Ordering in Low Aspect Ratio Microchannels Using Reference Frame Tracking and Rotation Measurements

2012 ◽  
Author(s):  
Todd P. Lagus ◽  
Jon F. Edd
Keyword(s):  
Aspect Ratio ◽  
Flow Rate ◽  
Reference Frames ◽  
Fold Increase ◽  
Particle Interactions ◽  
Constant Frequency ◽  
Monodisperse Particle ◽  
Inertial Focusing ◽  
Low Aspect Ratio ◽  
Insight Into

Inertial focusing and ordering in microchannel flows refers to the tendency of finite-sized particles to migrate across streamlines and to form linear, equally spaced trains in the direction of flow. This study utilizes a motorized microscope stage moving along the length of a low aspect ratio microchannel at up to 10 cm/s and provides a Lagrangian view of particles to obtain more complete time dependent trajectory and rotation histories from the channel inlet to outlet. We observe monodisperse particle dynamics, rotations, and interactions over time scales significantly longer (exceeding a 30-fold increase) than static reference frames. The results present new insight into particle interactions which show quasi-steady state equilibrium spacing which oscillates at a constant frequency at a fixed flow rate, which is different from the damped oscillatory interactions suggested in the literature. The average spacing shows little dependence on flow rate, but the oscillation frequency is dependent both on flow rate and particle size.

Development of an Ion Beam Probe System for Potential Measurement in the Low Aspect-Ratio Torus Experiment Device

2012 ◽  
Vol 132 (7) ◽  
pp. 567-573
Author(s):  
Hitoshi Tanaka ◽  
Shota Omi ◽  
Jun Katsuma ◽  
Yurie Yamamoto ◽  
Masaki Uchida ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Ion Beam ◽  
Potential Measurement ◽  
Low Aspect Ratio ◽  
Probe System ◽  
Experiment Device
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