A Post-Pierce Program: Using IDR to Improve the Los Angeles Fire Department\u27s Current Complaint and Disciplinary Procedure

Having an alternative to litigation is important for employees and employers in all organizations and corporations. One such option is through internal dispute resolution (IDR) mechanisms. IDR mechanisms are alternative processes used instead of litigation to solve a dispute in its early stages. When organizations and corporations do not have an established set of mechanisms in place or the employees are unaware of the procedure, lawsuits result. The Los Angeles Fire Department (LAFD) is one such organization that does not have a strong, established IDR procedure in place. This paper analyzes the LAFD\u27s current complaint and disciplinary procedure and how the flaws in this procedure have created million-dollar taxpayer-funded settlements

Scaling the propulsive performance of heaving and pitching foils

Scaling laws for the propulsive performance of rigid foils undergoing oscillatory heaving and pitching motions are presented. Water tunnel experiments on a nominally two-dimensional flow validate the scaling laws, with the scaled data for thrust, power, and efficiency all showing excellent collapse. The analysis indicates that the behaviour of the foils depends on both Strouhal number and reduced frequency, but for motions where the viscous drag is small the thrust closely follows a linear dependence on reduced frequency. The scaling laws are also shown to be consistent with biological data on swimming aquatic animals.Comment: 11 page

Propulsive performance of oscillating plates with time-periodic flexibility

We use small-amplitude inviscid theory to study the swimming performance of a flexible flapping plate with time-varying flexibility. The stiffness of the plate oscillates at twice the frequency of the kinematics in order to maintain a symmetric motion. Plates with constant and time-periodic stiffness are compared over a range of mean plate stiffness, oscillating stiffness amplitude, and oscillating stiffness phase for isolated heaving, isolated pitching, and combined leading edge kinematics. We find that there is a profound impact of oscillating stiffness on the thrust, with a lesser impact on propulsive efficiency. Thrust improvements of up to 35% relative to a constant-stiffness plate are observed. For large enough frequencies and amplitudes of the stiffness oscillation, instabilities emerge. The unstable regions may confer enhanced propulsive performance; this hypothesis must be verified via experiments or nonlinear simulations.Comment: 31 pages, 12 figure