fluid mechanics

benramster's picture

Read Prof Tom O'Donoghue's December Editorial for ICE-journal Engineering and Computational Mechanics for free here.

Read Prof Tom O'Donoghue's December Editorial for ICE-journal Engineering and Computational Mechanics for free here .


Cai Wei's picture

Open Junior Faculty Positions in Stanford ME

There are two open junior faculty positions in Stanford’s Mechanical Engineering department.  One is in the area of biomechanical engineering (broadly defined) and the second is theoretical and computational fluid mechanics (broadly defined).

 http://me.stanford.edu/research/open_positions.html 


How to deal with noisy data in a mesh free Galerkin method

I'm currently working with a particle tracking velocimetry method, specifically trying to extract shear and vorticity data from the non-gridded velocity results. Of several methods used, the most efficient and accurate was based on a non-Sibsonian element free method. Unlike a more typical Galerkin problem which finds displacements by solving a PDE, this method uses the displacements of natural neighbors to find local flow gradients. 
But here's the rub: this method is very sensitive to noisy data. Small errors in the displacement data cause large errors in the calculated gradients. Thus far smoothing the displacement data has been unsuccessful in correcting this problem. 


Robert G. Parker's picture

Faculty Positions at Univ of Michigan-Shanghai Jiao Tong Univ. Joint Institute

The University of Michigan (UM) and Shanghai Jiao Tong University (SJTU) have established a Joint Institute (JI) in Shanghai with a commitment to build a world-class academic research and educational institution. The UM-SJTU Joint Institute invites applications for tenure-track (Assistant, Associate, and Full Professor) positions in all emerging fields of engineering with emphasis on mechanical and electrical/computer engineering. These positions are open to top caliber applicants from around the world. With its unique academic mission in China and connection to SJTU's established research, the JI offers faculty extraordinary opportunities to develop major research programs.


zishun liu's picture

Online submission system for International Journal of Applied Mechanics (IJAM) is now LIVE

World Scientific is proud to announce the launch of a new online submission system, Editorial Manager (EM), for International Journal of Applied Mechanics (IJAM). One of the industry standard systems used by major academic publishers, EM provides a full online solution for manuscript submission, peer-review, and tracking.


MScaraggi's picture

Solving Reynolds equation (EHL problem)

I'm working on the numerical solution of the mixed problem in lubricated contacts. Does anyone know if the lubricant equation (Reynolds one) was never solved for film thickness instead of pressure (like actually is done with MGMI techniques) in some pubblication?


Using Fluid Mechanics for Geologic Salt Domes?

I was recently presented with a problem concerning the migration of a salt formation in an area of Utah. After spending a little time looking at the given data, I decided it might be a problem that could be approached using fluid mechanics. The idea being that the salt formation, relatively speaking, is highly viscous and is free to respond to acting forces and deform appropriately. Essentially, I was hoping to treat the salt formation almost like the bladder of a water bed reacting to differential loading. 


Carl T. Herakovich's picture

Berger on Video Solutions for Teaching Mechanics

Professor Ed Berger, Univeristy of Virginia Mechanical Engineering, is featured in the Chronicle of Higher Education for his use of web technologies and, in particular, "video solutions" for teaching undergraduate mechanics courses. See http://chronicle.com/weekly/v54/i34/era01301.htm.  Or contact Berger at berger@virginia.edu.  Ed hasn't used this approach for all undergraduate mechanics courses as yet, but the potential is there. 


Simpleware and COMSOL Announce Partnership

Simpleware Ltd. and COMSOL Inc. announced at the COMSOL Users Conference 2007 in Grenoble a partnership agreement to provide an export interface from Simpleware's world-leading 3D image-based meshing software +ScanFE™ to COMSOL Multiphysics® 3.4, the industry's foremost multiphysics simulation environment. The +ScanFE interface enables COMSOL users to directly import high-quality meshes generated from MRI, CT, and MicroCT scan data into COMSOL Multiphysics 3.4 for modelling and simulation without requiring re-meshing or pre-processing.


Ajit R. Jadhav's picture

The efficiency of turbines

Hello students (and also others) at iMechanica,

Last weekend, while channel browsing on TV, I happened to notice a documentary on the Hoover dam (in the US). It showed a number of jets of water, huge ones, forcefully springing forth out of the rock faces just downstream of the dam. These were the water jets coming off the electricity generation plant of the dam, *after* their job of generating electricity was already over.

Watching these fascinating water streams reminded me of a brain teaser. Might as well share it here. (It might look like high-school physics, but you can use it to understand higher courses in engineering as well.)


Simpleware signs up Vangest Group as their reseller in Portugal and Spain

Simpleware Ltd., the world leader in image-based meshing software, has signed a reseller agreement with Vangest Group, a provider of most advanced solutions in project, development and manufacturing.


Ajit R. Jadhav's picture

Why not use FDM in solid mechanics?

Finite Difference Method (FDM) and the related techniques such as FVM, are often found put to great use in fluid mechanics. See any simulation showing not only streamlines but also vortex shedding, turbulent mixing, etc.

Yet, when it comes to solid mechanics, Finite Element Method (FEM) is most often the method of choice. Actually, FEM is probably the *only* computational method used in solid mechanics. Most books on solid mechanics and structural analysis do not even mention FDM. A few that do, restrict FDM only to the Laplace's equation and the bi-harmonic equations--not to the general stress analysis problem in 3D.

Why is this so?


Simpleware signs up reseller in China

Simpleware Ltd., the world leader in image-based meshing software, has signed an agreement with Gaitech International Ltd. to resell the Simpleware suite of software products in China, Hong Kong, Taiwan and Macao.


Rod Ruoff's picture

A new type of bubble raft--challenge for clever students

17 years ago, while a postdoc at IBM meant to be doing other things, I thought about the following. Then recently I visited Ali Argon at MIT, and we discussed conventional bubble rafts and how useful they had been in studies of some problems in mechanics...such as of defects and so on.


Luoyu Roy Xu's picture

A pool filled with non-newtonian fluid

They filled a pool with a mix of cornstarch and water made on a concrete mixer truck. It becomes a non-newtonian fluid. When stress is applied to the liquid it exhibits properties of a solid. Video was recorded at Barcelona, Spain.


Andrew Norris's picture

James Lighthill

James Lighthill
Ratna Kumar Annabattula's picture

Daniel Bernoulli

Daniel Bernoulli

       Danel Bernoulli, the most successful of all the Bernoulli's was born in Groningen, The Netherlands on 8th February in 1700. His father Johann Bernoulli was working as professor of Mathematics at Groningen then.  Later they moved to Basel, Switzerland which was their native place.

      Daniel did his PhD in Medicine as Johann insisted him to do so. But, as Daniel was ver much interested in mathematics he was learning math while doing medicine. He also worked with another great mathematician Leohnard Euler (who was a student of Johann Bernoulli in Basel) in St. Petersburg. 


Zhigang Suo's picture

USNC/TAM Report on Research Fluid Dynamics

Carl Herakovich, the secretary of the US National Committee on Theoretical and Applied Mechanics (USNC/TAM), has posted the following entry in the Applied Mechanics Google Group today:

The USNC/TAM has just released a report by a Subcommittee on Research Directions in Mechanics, entitled Research in Fluid Dynamics: Meeting National Needs


Syndicate content