Events Calendar

Aerospace & Mechanical Engineering Department

Speaker: Konstantin Matveev , Associate Professor, School of Mechanical and Materials Engineering, Washington State University Pul,lman, Washington

Talk Title: Aero-Hydrodynamics and Dynamics of Air-Assisted Marine Vehicles

Abstract: Drag reduction of large cargo vessels can be achieved by lubricating submerged hull surfaces with air layers. Higher speeds of small fast boats can be attained by utilizing aerodynamic lift. Air-cavity ships, ultra-fast planing multi-hulls (racing boats), wing-in-ground-effect vehicles, and power-augmented-ram platforms are examples of marine craft with air assistance. The main technical problem in the development and application of these concepts for marine transportation is to ensure high performance and motion stability in a broad range of operational conditions, including motions in water waves. We will discuss an experimental study on air-cavity flows under a simplified hull model, associated modeling efforts based on hydrodynamic singularities and viscous solvers, and an example of industrial development of a large air-cavity cargo vessel. We will also illustrate applications of the extreme-ground-effect theory for aerodynamics of fast air-supported boats. Simulation results will be presented for hydroplane dynamics, including responses to initial perturbations, reactions to wind gusts, and motions in head and following waves. Video clips of our self-propelled radio-controlled models of power-augmented-ram vehicles will be demonstrated.


Biography: Konstantin Matveev obtained a Master degree in Applied Physics from Moscow Institute of Physics and Technology in 1996 and a Ph.D. degree in Mechanical Engineering from California Institute of Technology in 2003. His Ph.D. thesis was on thermoacoustic and combustion instabilities. As a postdoc at Los Alamos National Laboratory, Dr. Matveev investigated nonlinear thermoacoustic phenomena in advanced energy systems. As a senior hydrodynamicist at Art Anderson Associates and a consultant to several European R&D organizations, he was involved in the development of high-performance marine concepts, including air-lubricated hulls, hydrofoils, multi-hull ships, and wing-in-ground craft. He recently co-authored a technical book on Small-Waterplane-Area Ships. At the present time, Dr. Matveev is an Associate Professor in the School of Mechanical and Materials Engineering at Washington State University. His current research is focused on advanced marine vehicles and thermoacoustics.


Host: Prof. Eva Kanso

More Info: http://ae-www.usc.edu/seminars/9-5-12-matveev.shtml

Location: Seaver Science Library (SSL) - Room 150

Audiences: Everyone Is Invited

Contact: April Mundy

Event Link: http://ae-www.usc.edu/seminars/9-5-12-matveev.shtml