Moises Angulo joins research team!

Moises Angulo joins research team!

Moises is a senior studying Mechanical Engineering at George Mason University. He is currently working on doing high speed planing hull simulations to represent the Generic Prismatic Planing Hull (GPPH). After graduation, he plans on going to grad school to pursue a PhD in Aerospace Engineering. Outside of academia you can find him reading fiction novels, playing super smash bros, and working out.

Vessel Dynamics Laboratory

Vessel Dynamics Laboratory

As we get ready to kick off the 2019-2020 academic year, I’m thrilled to be settling into new lab space at GMU’s Potomac Science Center.  While furniture is still on order, computing power has arrived along with enough SeaPerch and SeaGlide kits to last us through some kickoff STEM outreach activities.  If you’re in the neighborhood, come by and visit: 1203 Potomac Science Center, 650 Mason Ferry Ave, Woodbridge VA!

Fishing Vessel Safety Apps – what’s that all about

Fishing Vessel Safety Apps – what’s that all about

 

This video gives a short overview on the history and thought process behind the fishing vessel safety apps SCraMP and FVdrills. App Store links for the apps are:

To purchase a copy of Beating the Odds on Northern Waters by Jensen and Dzugan, visit: https://www.amsea.org/booksandcurricula

STEM-on-Wheels unveiled at FMMS

STEM-on-Wheels is an ongoing project to outfit a mobile STEM trailer with fun, hands-on, science, technology, engineering, and mathematics activities for schools, after-school clubs, scouts, and other community groups.  The new trailer made its first public appearance at the 2014 ASNE Fleet Maintenance and Modernization Symposium in Virginia Beach.  To learn more about the program and upcoming schedule, please visit http://www.hampton.eng.vt.edu/stemonwheels.html.

Stephanie Sherman wins Virginia Space Grant Consortium Grant and Airport Cooperative Research Program Graduate Research Award

Update: Stephanie Sherman’s work on air traffic management has won her a Virginia Space Grant Consortium graduate student research grant and an Airport Cooperative Research Program Graduate Research Award!  Stephanie is working to develop a computational model of air traffic based upon a smoothed particle hydrodynamics-esque definition of aircraft interactions (like particle interactions in SPH).  Through this approach, her tool will be able to model stochastic aircraft characteristics in addition to deterministic characteristics.  Fundamentally, she is trying to provide a tool which can help address two important and challenging problems:

  1. Model aircraft interactions in a  decentralized control scheme versus the current centralized control approach (e.g. the bulk of aircraft interactions being governed by instructions from air traffic controllers).
  2. Model manned and unmanned aircraft interact with non-deterministic factors (e.g. pilot skill, aircraft handling, etc…)

Both of these topics are of interest for study as part of the Next Generation Air Transportation System (NextGen).

To learn more about her excellent work, follow the tag for S_Sherman.

Post-doc position opening

Position Summary:
Perform basic research in the field of ship motions as well as experimental and computational fluid dynamics in the Dr. Leigh McCue-Weil’s research lab. Research expertise in either RANS or meshfree CFD approaches such as SPH with interest in both approaches and/or expertise in experimental fluids. Job responsibilities will require strong experience with computational and experimental components. Post-doc will work with Dr. McCue-Weil in preparing reports to the research sponsor, writing journal and conference papers, and presenting in conference and other open forums.

Required Qualifications:
Ph.D. in ocean/naval/aerospace/mechanical or related engineering discipline, as well as knowledge of, or experience in, CFD and experimental fluids.

Preferred Qualifications:
Experience with OpenFoam, SPHysics or other mesh-free Lagrangian CFD approach.

For a complete listing of position qualifications, and to apply, please visit http://www.jobs.vt.edu, and search for posting #SR0140111. Review of applications will begin on July 29, 2014.

SCraMP Comparison Data

Folks often inquire about the accuracy of using an iPhone’s sensors as a data acquisition system.  John Zseleczky from the U.S. Naval Academy Hydromechanics Laboratory recently conducted a very nice comparative study resulting in the attached data and has given me the go-ahead to share this publicly.  Thank you very much John Z. and the USNA!

Stephanie Sherman

Stephanie Sherman rounds out the aerospace side of our aerospace and ocean engineering team with her research toward using a particle-based approach toward air traffic simulation with a focus on stochastic uncertainties and comparing centralized versus decentralized control schemes.

 

steph

Underwater Gas Expansion and Deflagration

The underwater combustion of a propane-air mixture in an acrylic cylinder is captured on the video linked here from multiple angles. This experiment, led by Van Jones with assistance from Kariann Vander Pol and John Gilbert, is designed to provide visual data and pressure time-histories for future CFD validation studies. We have submitted this to the APS Division of Fluid Dynamics gallery of fluid motion competition this year! More information, including an extended abstract and higher resolution version of the video can be found at: http://arxiv.org/abs/1310.3523.

SCraMP Release 3.13

I am often asked if SCraMP can be useful on big ships as well as the small craft, for which it is named.  My answer is always a resounding yes!  There is nothing in the code that would confine it to small craft, and indeed, I have tried to make it as customizable as possible to suit a range of needs.  With that in mind, the latest SCraMP release, hitting the app store today (https://itunes.apple.com/us/app/scramp/id456343416), adds two new safety metrics, one to help identify possible parametric roll conditions and one to provide guidance as to whether or not conditions might be making passengers sensitive to motion sickness.  As always, if you have suggestions for app improvements or feedback on SCraMP v3.13, I am eager to hear from SCraMPers.

 

 

SCraMP and iOS7

SCraMP users, a bug has been identified with the use of the safety metrics screen of SCraMP when running iOS7. I have submitted to Apple an update to solve the problem and hope to have the new iOS7 version of SCraMP released to you next week. Apologies for any inconvenience in the meantime.

Pankaj Kumar wins award

Just got this e-mail from former post-doc Pankaj Kumar: “I am happy to inform you that I have been awarded best group project in IHPC/ASTAR. This award is for developing Lattice Boltzmann Method (LBM) solver within the OpenFOAM framework. My job in this project was to develop finite difference- and finite volume- based LBM solvers in OpenFOAM.”  Congratulations Pankaj!