Raymond E. Arvidson McDonnell Center for the Space Sciences, Department of Earth and Planetary Sciences, Washington University in St. Louis, St. Louis, Missouri 63130 e-mail: [email protected] Karl D. Iagnemma Robotic Mobility Group, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 e-mail: [email protected] Mark Maimone California Institute of Technology/ Jet Propulsion L...

Research on underwater robots is attracting increased attention around the world. Various kinds of underwater robots have been developed, using an assortment of shapes, sizes, weights, and propulsion methods. In this paper, we propose a novel underwater robot, employing a spherical hull and equipped with multiple vectored water-jet-based thrusters. The overall design of the robot is first intro...

* Presented as Paper IEPC-01-131 at the 27 International Electric Propulsion Conference, Pasadena, CA, 15-19 October, 2001. † Copyright © 2001 by the Electric Rocket Propulsion Society. All rights reserved. An experimental study of plasma jet at a low pressure was carried out to examine the influence of strong magnetic field on the temperature distribution. This is a fundamental study of the po...

The hydrodynamics and undulating propulsion of tadpoles were studied using a newly developed two-dimensional computational fluid dynamics (CFD) modeling method. The mechanism of thrust generation associated with the flow patterns during swimming is discussed. Our CFD analysis shows that the kinematics of tadpoles is specifically matched to their special shape and produces a jet-stream propulsio...

This paper investigates development of power management strategies tailored specifically to a medium truck with parallel hydraulic hybrid powertrain. The hydraulic hybrid vehicle (HHV) system is modeled in MATLAB/SIMULINK environment. As the starting point, this study considers rule-based power management strategy adopted from the previous HEV study. Dynamic Programming (DP) algorithm is used t...

1 Written collectively as “Golden Oldie XXX; each author is signed under his segment. 2 Copernicus Astronomical Center, Polish Academy of Sciences, Warsaw, Poland; e-mail: [email protected] 3 Eduard-Steinle-Straβe 19, 70 619 Stuttgart, Germany. 4 29 Washington Square West, New York, NY 10011, USA; e-mail: [email protected] 5 Jet Propulsion Laboratory, Mail Stop 169-327, 4800 Oak Grove Drive, Pa...

The use of impinging liquid jets in electronics thermal management is attracting some consideration due to their very high heat transfer coefficients, hot spot targeting capabilities and moderate hydraulic power requirements. In this investigation an experimental study of the cooling capabilities of impinging water jet arrays is presented. Of particular interest here is the influence that the i...

September 15, 2009 Steve Baloga (Proxemy Research) Bruce Banerdt (Jet Propulsion Laboratory) A. T. Basilevsky (Brown University/Vernadsky Institute) George Burba (Vernadsky Institute) David Crisp (Jet Propulsion Laboratory) Larry Crumpler (New Mexico Museum of Natural History and Science) Linda T. Elkins-Tanon (Massachusetts Institute of Technology) Herb Frey (NASA’s Goddard Space Flight Center...