Len Imas

Dr. Imas analyses numerical hydrodynamics and the application of CFD in design. He is currently involved in research activities involving hydrodynamics of underwater swimmers; interaction of high-speed vessel wakes in a confined seaway; and hydro-mechanics of remotely-operated underwater vehicles in estuary environments. He also studies contact line models and dynamics for bow-wave flows; free-surface LES; development of SPH algorithms for modeling of breaking waves and free-surface phenomena involving surface-piercing bodies; modeling of supercavitation physics with applications to underwater vehicles; missile aerodynamics; FSI involving vortex-induced vibrations of bluff bodies; and aero-hydrodynamics of high-performance sailing yachts.

He is part of a recent group that received funding from the Northrop Group to support its work on DARPA’s Underwater Express Program, which will advance critical technology issues associated with the physics of supercavitation and culminate with a significant scale demonstration proving that a supercavitating underwater craft is controllable at speeds up to 100 knots. Dr. Imas is also an integral part of the Atlantic Center for the Innovative Design and Control of Small Ships.

In addition to his research, Dr. Imas is a member of the American Institute of Aeronautics and Astronautics (AIAA), Society of Naval Architects and Marine Engineers (SNAME), Tau Beta Pi (National Engineering Honor Society), and Sigma Gamma Tau (National Aeronautical Engineering Honor Society).

Research Images:
Selected Publications:
Dov Kruger, Hongyuan Shi, Mina Samaan, Donald Chesley, Jeffrey V. Nickerson, Len Imas. (2009). High Speed Localization Using a Multiple Analytical Distribution Filter, US Navy Journal of Underwater Acoustic, JUA(USN) , 59 465-481
Dov Kruger, Hongyuan Shi, Mina Samaan, Jeffrey V. Nickerson, Len Imas. (2009). Dynamic UUV Path Planning in an Estuarine Current Field, US Navy Journal of Underwater Acoustics; JUA(USN) . 59 449-464
Air turbulence-induced vibration of SCUBA breathing apparatus. (2007). Dimitri Donskoy, Len Imas, Timothy Yen, Nikolay Sedunov, Michael Tsionskiy, J Acoust Soc Am, 122 (5), 2965
LUCOR, D., EVANGELINOS, C., IMAS, L., & KARNIADAKIS, E. M. (Oct 2002). Flow induced vibrations of non-linear cables, Part II: Simulations, International Journal for Numerical Methods in Engineering, 55 (5), 557 – 571
LUCOR, D., IMAS, L., & KARNIADAKIS, E. M. ( 2001). Vortex dislocations and force distributions of long flexible cylinders subjected to sheared flows, Journal of Fluids and Structures, 15 641-650
Collaborators:
Dimitri DonskoyRaju DatlaMichael Bruno
Contact Information:

Len Imas
Len.Imas@stevens.edu
Phone: 201.216.5357
Room 210 Davidson Labs
Castle Point on Hudson
Hoboken NJ 07030

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