Exam 14: Computational Fluid Dynamics

Wind blowing over the cables of a bridge sheds alternating vortices resulting in oscillating forces acting on the cables. Which of the major parameters listed in Eq. 6.2.17 are the primary Parameters which would be used in the description of this situation?

$\text {It is supposed that the power needed to propel a large dirigible depends on the speed V,}$ $\text {diameter, D, length \(L\), viscosity \(\mu\), density \(\rho\), and gravity \(g\). The relationship between these}$ $\text {variables can be expressed as:}$

$\text {The variables length l, gravity \(g\), velocity \(V\), and density \(\rho\) can be combined into the}$ $\text {dimensionless term:}$