Mechanism of wake-induced flow dynamics in tandem flapping foils: Effect of the chord and gap ratios on propulsion

2021 ◽  
Vol 33 (8) ◽  
pp. 087104
Author(s):  
Vaibhav Joshi ◽  
Ravi Chaithanya Mysa
Keyword(s):  
Flow Dynamics ◽  
Induced Flow ◽  
Flapping Foils

scholarly journals Assessing methods for estimating roughness coefficient in a vegetated marsh area using Delft3D

2017 ◽  
Vol 19 (5) ◽  
pp. 766-783 ◽  
Author(s):  
Khalid Al-Asadi ◽  
Jennifer G. Duan
Keyword(s):  
Flow Resistance ◽  
Flow Model ◽  
Tidal Flow ◽  
Flow Dynamics ◽  
Roughness Coefficient ◽  
Flow Depth ◽  
Floodplain Vegetation ◽  
Marsh Area ◽  
Empirical Relations ◽  
Induced Flow

A Delft3D-FLOW model was used to simulate tidal flow in Davis pond marsh in Louisiana, USA. The study area is a freshwater marsh consisting of one main channel and floodplain. Vegetation-induced flow resistance greatly influences tidal flow dynamics in the marsh. This study evaluated eight approaches to estimate vegetation roughness, including two constant Manning's n values, four empirical relations for calculating n, and two methods for calculating Chezy's C values originally embedded in the Delft3D model. Simulated results of water surface elevation (WSE) were compared with the corresponding field observation at eleven stream gauges in the study area. We concluded that the roughness coefficient for vegetated area varies with time as flow depth changes. Among the selected empirical relations for the vegetation roughness, the ones accounting for the effect of the vegetation frontal area and the degree of submergence have closely matched the measurements.

Study of shock and induced flow dynamics by pulsed nanosecond DBD plasma actuators

2014 ◽  
Author(s):  
Zijie Zhao ◽  
Jiun-Ming Li ◽  
Jianguo Zheng ◽  
Yongdong Cui ◽  
Boo Cheong Khoo
Keyword(s):  
Flow Dynamics ◽  
Plasma Actuators ◽  
Dbd Plasma ◽  
Induced Flow

scholarly journals River-Induced Flow Dynamics in Long-Screen Wells and Impact on Aqueous Samples

Ground Water ◽  
2010 ◽  
Vol 49 (4) ◽  
pp. 515-524 ◽  
Author(s):  
Vince R. Vermeul ◽  
James P. McKinley ◽  
Darrell R. Newcomer ◽  
Robert D. Mackley ◽  
J.M. Zachara
Keyword(s):  
Flow Dynamics ◽  
Aqueous Samples ◽  
Induced Flow

scholarly journals Ex vivo visualization of human ciliated epithelium and quantitative analysis of induced flow dynamics by using optical coherence tomography

2017 ◽  
Vol 49 (3) ◽  
pp. 270-279 ◽  
Author(s):  
Yuye Ling ◽  
Xinwen Yao ◽  
Ute A. Gamm ◽  
Emilio Arteaga-Solis ◽  
Charles W. Emala ◽  
...  
Keyword(s):  
Optical Coherence Tomography ◽  
Quantitative Analysis ◽  
Ex Vivo ◽  
Flow Dynamics ◽  
Ciliated Epithelium ◽  
Optical Coherence ◽  
Induced Flow

Analytical Expressions of Incident-Induced Flow Dynamics Perturbations: Using Macroscopic Theory and Extension of Lighthill-Whitham Theory

2000 ◽  
Vol 1710 (1) ◽  
pp. 58-68 ◽  
Author(s):  
Hélène Mongeot ◽  
Jean-Baptiste Lesort
Keyword(s):  
Flow Dynamics ◽  
Macroscopic Theory ◽  
Traffic Incidents ◽  
Flow Perturbation ◽  
First Order ◽  
Maximum Queue Length ◽  
Clearing Time ◽  
Induced Flow ◽  
The Impact ◽  
Analytical Expressions

The impact of immobile traffic incidents on traffic flow dynamics is modeled using first-order macroscopic flow theory, in which an incident is characterized by dual severity, possibly extensive length, and duration. Incident-induced flow perturbation variations through space and time are then developed as are associated analytical expressions of shock waves, perturbation clearing time, and maximum queue length.

The role of the sinuses of valsalva in aortic root flow dynamics and aortic root surgery

2007 ◽  
Vol 55 (S 1) ◽  
Author(s):  
F Schoenhoff ◽  
C Loupatatzis ◽  
FS Eckstein ◽  
C Stoupis ◽  
FF Immer ◽  
...  
Keyword(s):  
Aortic Root ◽  
Flow Dynamics ◽  
Aortic Root Surgery
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