Yahya Modarres-Sadeghi

Professor of Mechanical Engineering @UMassAmherst, Fluid-Structure Interactions, Fellow of Harvard Radcliffe Institute for Advanced Study

[Yahya Modarres-Sadeghi @TheFSILab]

We look forward to working on this new project supported by @NSF at @UMassAmherst in collaboration with Luca Caracoglia @Northeastern to derive a model to predict the influence of turbulence on flow-induced instabilities of offshore wind turbine blades.
https://t.co/Vn2W32CcNB

[Yahya Modarres-Sadeghi @TheFSILab]

This is the winning video that Sudhansh Tanneru from our lab submitted to the Graduate Gallery Competition at @UMassMIE @UMassAmherst.

[Yahya Modarres-Sadeghi @TheFSILab]

This is a clip from our submission to the Gallery of Fluid Motion APS DFD. The complete video is here: https://t.co/wHQocf1PmU

[Yahya Modarres-Sadeghi @TheFSILab]

The response of a closed-loop kirigami pattern in flow. The kirigami sheet undergoes a large elongation in the direction of flow, but despite this large elongation, the sheet does not experience any flow-induced instability.

From our recent paper in EML: https://t.co/Q1P5hnygKS

[Yahya Modarres-Sadeghi @TheFSILab]

Vortices that are formed during the tail-flip escape response of crayfish.

From our paper in collaboration with @ethanclotfelter, and our students Luis X de Pablo and Adrian Carleton, just published in @iobjournal.

Here is a link to the paper:
https://t.co/oqX7M9r0vl

[Yahya Modarres-Sadeghi @TheFSILab]

Flow through a deployed ribbon-cut kirigami sheet.
Here is a link for free access to the paper:
https://t.co/Q1P5hnyOAq

[Yahya Modarres-Sadeghi @TheFSILab]

This is a fractal-cut kirigami sheet placed in flow. The kirigami sheet buckles at higher flow velocities and passively controls the direction of jets that are formed downstream of the sheet. From our paper just published in Extreme Mechanics Letters: https://t.co/ilfOcG6lng

[Pari Riahi @paririahi]

Following Exactitude, published in 2022, comes Multiplicity: On Constraint and Agency in Contemporary Architecture, our second edited volume, co-edited with L. Katsaros and Michael T. Davis, published beautifully by @umasspress and with contributions from 11 scholars.

[Yahya Modarres-Sadeghi @TheFSILab]

I am honored to be elected a Fellow of ASME. @ASMEdotorg

[Yahya Modarres-Sadeghi @TheFSILab]

Formation of vortices in the wake of an oscillating cylinder.

[Yahya Modarres-Sadeghi @TheFSILab]

These are angular oscillations of a cylinder placed in flow. When the cylinder is allowed to oscillate in a convex orientation (right), it reaches larger amplitudes compared with when it is allowed to oscillate in the concave orientation (left). https://t.co/4V1UtPZB74

[Yahya Modarres-Sadeghi @TheFSILab]

And, when a square prism does want to oscillate in flow, even without any initial push.
https://t.co/5JuauFWkyZ

[Yahya Modarres-Sadeghi @TheFSILab]

When a square prism does not want to oscillate in flow despite an initial push. https://t.co/5JuauFWkyZ

[Yahya Modarres-Sadeghi @TheFSILab]

These elongated S-shaped vortices are shed in the wake of a flexibly-mounted cylinder that oscillates as it interacts with the incoming inertial-elastic flow. From our paper just published in the Journal of Non-Newtonian Fluid Mechanics: https://t.co/pX6fwuQIxo

[Yahya Modarres-Sadeghi @TheFSILab]

This is an image of our sculpture in the catalog of the Gallery of Fluid Motion's exhibit: “Chaosmosis: Assigning Rhythm to the Turbulent” that is on display at the Gallery of the National Academy of Sciences in DC.
https://t.co/KRQtkvthai

[Yahya Modarres-Sadeghi @TheFSILab]

In our work just published in @JFluidMech, we show a new mode of shedding in the wake of a cylinder forced to oscillate in viscoelastic flow, that is caused entirely by fluid's viscoelasticity. These are the elongated red and blue regions in the video. https://t.co/OjKohw9pib

[Yahya Modarres-Sadeghi @TheFSILab]

It was an honor to give a flash talk at the National Academy of Sciences ⁦@theNASciences⁩ last night on our piece from “in the wake” with ⁦@paririahi⁩ ⁦@UMassAmherst⁩ that is on display at the Traveling Gallery of Fluid Motion ⁦⁦@apsfluiddynamic⁩.

[Yahya Modarres-Sadeghi @TheFSILab]

FSI lab members (current, visiting, and former) at the ⁦⁦⁦@apsfluiddynamic⁩ meeting 2023.

[Yahya Modarres-Sadeghi @TheFSILab]

First slide of my #APSDFD talk.
https://t.co/yVvxP3aOXx

[Yahya Modarres-Sadeghi @TheFSILab]

In case you are attending APS DFD 2023, here are the talks from our lab:

https://t.co/w3iEdFDnAr

https://t.co/ijiIaFMqvE

https://t.co/PiH6MyMJ4d

https://t.co/yVvxP3aOXx

https://t.co/0Fbe22ti5r