Quantitative Investigation on the Formation of Counter-Rotating Vortex Pairs from the Inclined Jet in Crossflow

2018 ◽  
pp. 125-130
Author(s):  
C. Dai ◽  
Z. Shu ◽  
J. Mi
Keyword(s):  
Quantitative Investigation ◽  
Vortex Pairs ◽  
Jet In Crossflow

Numerical Study of Unsteadiness in a Jet-in-Crossflow

1999 ◽  
Author(s):  
Guangbin He
Keyword(s):  
Numerical Study ◽  
Flow Characteristics ◽  
Velocity Fields ◽  
Turbulent Jet ◽  
Navier Stokes ◽  
Flow Structures ◽  
Vortex Pairs ◽  
Jet In Crossflow ◽  
Numerical Studies ◽  
Taylor Problem

Abstract We have performed numerical studies on unsteady flow characteristics of a round turbulent jet discharging normally into a crossflow. Reynolds-Averaged Navier-Stokes (RANS) equations were solved with the standard k-ε turbulence model. A viscous flow past a circular cylinder and Taylor problem in which an analytical solution is available were used to validate the unsteady numerical scheme. The unsteady calculations of the jet-in-crossflow reproduced the flow structures including the periodically oscillating wake structures, the jet shear-layer vortices, and the counter-rotating vortex pairs. The time-averaged prediction of velocity fields derived from the unsteady solution was fairly improved. Characteristic oscillating frequencies, namely Strouhal numbers under various jet diameters and crossflow velocities, were accurately predicted.

Quantitative investigation on perceived anxiety and pain during the cervical cancer screening path

2018 ◽  
Vol 59 (4) ◽  
Author(s):  
Matilde M. Canepa ◽  
Alessandra Gobbi ◽  
Gabriele Tibaldi ◽  
Massimiliano Grassi
Keyword(s):  
Cervical Cancer ◽  
Cancer Screening ◽  
Cervical Cancer Screening ◽  
Quantitative Investigation

Numerical Simulation of an Axial Reacting Jet-in-Crossflow at Elevated Pressure

2021 ◽  
Author(s):  
Bernhard Stiehl ◽  
Michelle Otero ◽  
Tommy Genova ◽  
Kareem A. Ahmed ◽  
Scott M. Martin
Keyword(s):  
Numerical Simulation ◽  
Elevated Pressure ◽  
Jet In Crossflow

Quantitative investigation of sediment regulation performance of slot-check dam on viscous debris flow

2021 ◽  
Vol 14 (14) ◽  
Author(s):  
Jinfeng Liu ◽  
Huaquan Yang ◽  
Wenbing Zhou ◽  
Yong You ◽  
Hao Sun ◽  
...  
Keyword(s):  
Debris Flow ◽  
Check Dam ◽  
Quantitative Investigation ◽  
Viscous Debris Flow

Quantitative Investigation of the Nonlinear Polarization in Epoxy/SiC Nanocomposite

2021 ◽  
Vol 28 (1) ◽  
pp. 66-73
Author(s):  
Yunlong Sun ◽  
Zhonghua Li ◽  
Yongsen Han ◽  
Xin Zhang
Keyword(s):  
Nonlinear Polarization ◽  
Quantitative Investigation

scholarly journals Posture and Health: Are the Biomechanical Postural Evaluation and the Postural Evaluation Questionnaire Comparable to and Predictive of the Digitized Biometrics Examination?

2021 ◽  
Vol 18 (7) ◽  
pp. 3507
Author(s):  
Giovanni Barassi ◽  
Edoardo Di Simone ◽  
Piero Galasso ◽  
Salvatore Cristiani ◽  
Marco Supplizi ◽  
...  
Keyword(s):  
Emotional Disorders ◽  
Healthy Subjects ◽  
Large Scale ◽  
Quantitative Investigation ◽  
Evaluation Questionnaire ◽  
Evaluation Form ◽  
Margin Of Error ◽  
Different Types ◽  
Biomechanical Evaluation ◽  
Postural Tone

Background: Postural tone alterations are expressions of myofascial and, therefore, of structural, visceral, and emotional disorders. To prevent these disorders, this study proposes a quantitative investigation method which administers a postural evaluation questionnaire and a postural biomechanical evaluation to 100 healthy subjects. Methods: The reliability of the method is studied by comparing both assessments with digitized biometrics. In addition, 50 subjects undergo the biomechanical evaluation form twice, by four different operators, to study the intraoperative repeatability. Results: The results show a satisfactory overlap between the results obtained with the postural evaluation questionnaire and the postural biomechanical evaluation compared to computerized biometrics. Furthermore, intraoperative repeatability in the use of the biomechanical evaluation form is demonstrated thanks to a minimal margin of error. Conclusions: This experience suggests the importance of undertaking this path in both the curative and the preventive sphere on a large scale and on different types of people who easily, and even unknowingly, may face dysfunctional syndromes, not only structural and myofascial but also consequently of the entire body’s homeostasis.

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