Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
Assessment of the Automation Algorithm for TDR Bridge - Ohio ...
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Physical Modeling<br />
Parameters related to fluid properties<br />
• g: acceleration due to gravity<br />
• ρ: density <strong>of</strong> <strong>the</strong> fluid<br />
• υ: kinematic viscosity <strong>of</strong> fluid<br />
Parameters related to flow properties<br />
• y1 : approach flow depth<br />
d<br />
• V1: approach mean flow velocity<br />
s<br />
Parameters related to sediment properties b<br />
• ρ: density <strong>of</strong> <strong>the</strong> sediment<br />
• d50 : median sediment size<br />
• σg: geometric standard deviation <strong>of</strong> sediment size<br />
distribution<br />
• cohesion <strong>of</strong> sediment<br />
Parameters related to <strong>the</strong> bridge pier<br />
• shape <strong>of</strong> <strong>the</strong> bridge pier<br />
• width <strong>of</strong> <strong>the</strong> bridge pier<br />
• alignment <strong>of</strong> <strong>the</strong> bridge pier<br />
Breusers et al. 1997<br />
⎛<br />
⎞<br />
⎜<br />
y1<br />
V1<br />
ρV1b<br />
V1<br />
b<br />
= f K<br />
⎟<br />
s,<br />
Kθ<br />
, , , , , , σ g<br />
⎜<br />
⎟<br />
⎝<br />
b gy µ Vc<br />
d<br />
1<br />
50 ⎠<br />
9