Richard Hollenbach


Thermal Sciences Associate, Exponent Scientific and Engineering Consulting

Richard is a Ph.D. Candidate in Mechanical Engineering at Duke University. He studies vibrations and unsteady aerodynamics of turbomachinery. He explores the phenomenon of Non-Synchronous Vibrations (NSV) and its impact on turbines both through experiments in Duke's Low Speed Wind Tunnel and through Computational Fluid Dynamics Simulations. The goal will be to better understand NSV in the design of future turbines.

In experimental studies, Richard is verifying the "lock in" phenomenon associated with NSV, where the fluid shedding frequency merges with the enforced motion of a moving cylinder or pitching airfoil. In computational simulations, Richard is assisting the Leibniz University in Hannover, Germany with their design of a 3-stage turbine that will study NSV experimentally.

Research Interests

Richard is studying Nonsynchronous Vibrations in turbomachinery using a single airfoil in Duke's Low Speed Wind Tunnel.