fluid-structure interaction – TechConnect Briefs

Design Simulations of MEMS Micropump by 3D Fluid-Structure Interaction Analysis

Johari J., Universiti Kebangsaan Malaysia, MY

The major technical impediment in developing new microdevices lies in the lack of understanding physical phenomena and their interactions of thermal, mechanical, electric, magnetic and/or fluidic fields for performing their intended functions. Due to the [...]

A New Computational Model for Fluid-Structure Interaction Phenomena in Wind-Turbine Blades

Ponta F.L., Otero A.D., Lago L.I., Michigan Technological University, US

Limitations in the current blade technology constitute a technological barrier that needs to be broken in order to continue the improvement in wind-energy cost. Blade manufacturing is mostly based on composite laminates, which is labor-intensive [...]

Full Coupling Simulation of a Membrane Micropump

Yao Q., Xu D., Pan L.S., Melissa Teo A.L., Ho W.M., Peter Lee V.S., Shabbir M., Institute of High Performance Computing, SG

The design of PZT actuated valveless membrane micropumps is a very complex process as it involves the knowledge of electro mechanics, solid mechanics and fluid mechanics. So far, there is no accurate, flexible and broadly [...]

Free Surface Flow and Acousto-Elastic Interaction in Piezo Inkjet

Wijshoff H., Océ Technologies B.V., NL

Modeling plays an essential role in our research on new inkjet technologies. Structural modeling with Ansys includes piezo-electricity. Acoustic modeling in Ansys and Matlab involves fluid-structure interaction. CFD modeling with Flow3D includes wall-flexibility and free [...]

Studies on a DNA Double Helicoidal Structure Immersed in Viscous Bio-Fluid

Lim C.W., Shu J-J, Nanyang Technological University, SG

The paper aims at extending, utilising and generalising research in nonlinear dynamics of (i) spiral/helicoidal structures, and (ii) viscous, low speed fluid to biomechanical DNA fluid-structure interaction. Employing a nonlinear helicoidal model, the energy stored [...]

Coupled Electrostatic-Structures-Fluidic Analysis of a Micromirror

Turowski M., Chan E., Dionne P., CFD Research Corporation, US

For micromirrors used in optical MEMS, in addition to the static displacement-voltage characteristics, the accurate transient characterization of these devices is becoming increasingly important. The latter one is strongly affected by the viscous damping

A Mathematical Model of a Biosensor

Botkin N.D., Schlensog M., Tewes M., Turova V.L., Center of Advanced European Studies and Research, DE

A mathematical model of a biosensor is considered. The biosensor is supposed to be used for the measurement of small amounts of certain substances in liquids. The device works as follows: acoustic shear waves are [...]

A Study on the Fluid-Structure Interaction using LSFEM

Lee S-H., Youn S-K., Yeon J-H., Jiang B-N., KAIST, KR

A study on the fluid-structure interaction using LSFEM is presented. To consider fluid-structure interaction, staggered scheme, which solves fluid and structure respectively by separate solvers in a predictor-corrector fashion, is used. To analyze fluid-structure interaction [...]

Analysis of Pressure Balanced MEMS Valves

Yang F., Kao I., SUNY-Stony Brook, US

Based on simple plate theory and the Bernoulli equation, the effect of fluid flow on the deformation of fluid driven MEMS diaphragm microvalve is investigated analytically and numerically. The static instability of such a microsystem [...]