Geometric characteristics of coarse-sand ripples generated by oscillatory flows: A full-scale experimental study

2019 ◽  
Vol 147 ◽  
pp. 159-174 ◽  
Author(s):  
Dongxu Wang ◽  
Jing Yuan
Keyword(s):  
Experimental Study ◽  
Coarse Sand ◽  
Full Scale ◽  
Oscillatory Flows ◽  
Sand Ripples ◽  
Geometric Characteristics

The dimensions of sand ripples in full-scale oscillatory flows

2006 ◽  
Vol 53 (12) ◽  
pp. 997-1012 ◽  
Author(s):  
T. O'Donoghue ◽  
J.S. Doucette ◽  
J.J. van der Werf ◽  
J.S. Ribberink
Keyword(s):  
Full Scale ◽  
Oscillatory Flows ◽  
Sand Ripples

scholarly journals GEOMETRIC CHARACTERISTICS OF WAVE-GENERATED SAND RIPPLES: A FULL-SCALE EXPERIMENTAL STUDY

2018 ◽  
pp. 48
Author(s):  
Dongxu Wang ◽  
Jing Yuan ◽  
Ole S. Madsen
Keyword(s):  
Experimental Study ◽  
Sediment Transport ◽  
Coastal Environment ◽  
Transport Processes ◽  
Flow Conditions ◽  
Sand Ripples ◽  
Geometric Characteristics ◽  
The Past ◽  
Coherent Vortex ◽  
Wave Induced

In the coastal environment, wave-induced sand ripples are usually observed under moderate near-bed flow conditions. Their occurrence significantly changes the local hydrodynamics and sediment transport processes. Over the past few decades, some solid progresses have been made towards understating the ripple dimensions under wave-generated near-bed flows, e.g., O'Donoghue et al. [2006], but very few studies are targeted on the more detailed geometric characteristics, e.g., the generic shape of ripples and the sharpness of ripple crests, which are closely related to the coherent vortex structures. This study is aimed at filling this knowledge gap.

Full-Scale Experimental Study on the Smoke Characteristics of Train Fire Stopping at Rescue Station in Railway Tunnel

2010 ◽  
Vol 20 (3) ◽  
pp. 251-270
Author(s):  
L. F. Chen ◽  
L. H. Hu ◽  
Q. S. Wang ◽  
B. H. Liu ◽  
N. Meng ◽  
...  
Keyword(s):  
Experimental Study ◽  
Full Scale ◽  
Railway Tunnel

Yacht Keels - An Experimental Study

1975 ◽  
Author(s):  
Pierre DeSaix
Keyword(s):  
Experimental Study ◽  
Aspect Ratio ◽  
Center Of Gravity ◽  
Full Scale ◽  
Optimum Size ◽  
Hull Form ◽  
Size And Shape ◽  
Aspect Ratios ◽  
Current Design ◽  
Lateral Area

Model tests are presented for a series of nine keels; three aspect ratios, three sweep angles; all at constant lateral area, taper ratio and thickness ratio. The series is shown to bracket current design trends. These keels are all tested on the same canoe body, over a range of heel angles, lee-ways, and speeds. The results are presented in terms of full-scale sailing performance with due allowance for a reasonable ballast ratio and resulting vertical center of gravity for each keel. Optimum sweep angles for each aspect ratio are found. A second series of three keels, geometrically similar but varying in lateral area, is provided. Predictions of windward performance demonstrate the effect of keel size. An optimum size is found for three wind strengths. The results are for one hull form only. However, a method is suggested for estimating the effect of keel size and shape for any proposed design.

A full scale experimental study of prestressed stayed columns

2015 ◽  
Vol 100 ◽  
pp. 490-510 ◽  
Author(s):  
Miguel Serra ◽  
Ashkan Shahbazian ◽  
Luís Simões da Silva ◽  
Liliana Marques ◽  
Carlos Rebelo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Full Scale
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