Zobrazeno 1 - 10
of 16
pro vyhledávání: '"Stephen R. Snarski"'
Publikováno v:
OCEANS 2015 - Genova.
This paper describes the current state of development of a localization framework with the goal of enabling an autonomous underwater vehicle (AUV) to execute long-range precision-navigation missions where positional resets based on GPS and/or transpo
Autor:
Stephen R. Snarski
Publikováno v:
Physics of Fluids. 16:344-359
The fluctuating wall pressure on a circular cylinder in cross flow has been investigated experimentally in a water tunnel to examine the effect of yaw angle on the spectral characteristics of the wall pressure field and to provide insight into the pe
Autor:
Stephen R. Snarski, Stephen A. Huyer
Publikováno v:
Journal of Fluids Engineering. 125:533-542
The unsteady turbulent inflow into a swirl-inducing stator upstream of propeller (SISUP) propeller is presented. The upstream stators and hull boundary layer generate a complex, three-dimensional inflow that was measured using x-wire anemometry. High
Autor:
Todd Sherrill, William Church, Enrique Dunn, Alberico Menozzi, Brian Clipp, David C. Roberts, Eric Wenger, Herman Towles, James Cook, Jan-Michael Frahm, Jasper Lupo, Jeffrey Webb, Stephen MacCabe, Matthew D. Bennett, Christopher Leslie, Pat Russler, Jennifer Ann Mauger, Greg Welch, Stephen R. Snarski, Robert Karl
Publikováno v:
SPIE Proceedings.
This paper describes performance evaluation of a wearable augmented reality system for natural outdoor environments. Applied Research Associates (ARA), as prime integrator on the DARPA ULTRA-Vis (Urban Leader Tactical, Response, Awareness, and Visual
Autor:
Richard M. Lueptow, Stephen R. Snarski
Publikováno v:
Journal of Fluid Mechanics. 286:137-171
Measurements of wall pressure and streamwise velocity fluctuations in a turbulent boundary layer on a cylinder in an axial air flow (δ/a = 5.04, Reθ = 2870) have been used to investigate the turbulent flow structures in the cylindrical boundary lay
Autor:
Brian Clipp, Patrick Russler, Stephen R. Snarski, Alberico Menozzi, Todd Sherrill, David C. Roberts
Publikováno v:
Head- and Helmet-Mounted Displays XVII; and Display Technologies and Applications for Defense, Security, and Avionics VI.
This paper describes the development and demonstration of a soldier-worn augmented reality system testbed that provides intuitive 'heads-up' visualization of tactically-relevant geo-registered icons. Our system combines a robust soldier pose estimati
Publikováno v:
Journal of Aerosol Science. 25:1213-1227
The results of experiments conducted to characterize droplet motion within electrohydro-dynamic fine sprays are examined in the context of providing information on the mixing of electrically-charged droplets. Two cases are considered: one involving d
Publikováno v:
SPIE Proceedings.
The current bottleneck in wide area persistent surveillance missions is slow exploitation and analysis (real-time and forensic)by human analysts. We are currently developing an automated data exploitation system that can detect, track, and recognize
Autor:
Patrick F. Dunn, Stephen R. Snarski
Publikováno v:
Journal of Applied Physics. 71:80-84
The measured diameter and flux distributions and total current of ethanol droplets generated electrohydrodynamically from a single hypodermic needle at two different spray charge densities are presented and discussed. The resultant droplet diameter a
Autor:
Patrick F. Dunn, Stephen R. Snarski
Publikováno v:
Experiments in Fluids. 11:268-278
Experiments were conducted to characterize the interaction between two sprays of electrically charged ethanol droplets. The micrometer-size droplet sprays were generated electrohydrodynamically by applying a high positive voltage to two adjacent para