Hemmati, Arman

Profile

Keywords:

Fluid Dynamics, Turbulence, Wakes, Flow, Energy Systems, Renewable Energy, Emissions Reduction Technology

I completed my B.Sc. in Mechanical Engineering at the University of Calgary with an emphasis on aerodynamics and alternative energy systems in 2011. Following my undergraduate studies, I started working on my doctoral thesis under the supervision of Prof. David Wood at the University of Calgary. My doctoral thesis focused on Direct Numerical Simulation (DNS) and Large Eddy Simulation (LES) of the wake of sharp-edge flat bodies representing wind loads on Photovoltaic (PV) modules. This study looked at the fundamentals of the formation and interaction of vortex structures in the wake of flat panels at high angles of attack, and evaluated the implications of vortex dynamics on surface pressure variations and aerodynamic force fluctuations. I also worked on several experimental and numerical studies related to wind turbine tail fins, insect flight aerodynamics, vehicle aerodynamics and wind engineering. Upon completion of my PhD, I joined the Gas Dynamics Laboratory at Princeton University as a Post-Doctoral Research Fellow to work with Prof. Lex Smits. My research at Princeton focused on the development of the next generation of propulsors with higher efficiency and thrust than conventional systems using inspiration from fish. In collaboration with biologists at partnering universities, I used IBM integrated to DNS to investigate the hydrodynamics of various tail fin shapes, oscillatory motions and their implications on the performance of propulsors and energy extractors. This project, and my collaboration with the Gas Dynamics Laboratory, is ongoing with the objective of preparing a realistic high performance energy extractor prototype.

FES Funded Projects

Outputs

Title	Category	Date	Authors	Projects
Performance of Overset Mesh in Modeling Generic Wakes for Underwater SwimmingT14-Q01, T11-Q01 University of Alberta	Publication	2019-11-01	Suyash Verma, Hemmati, A.	T14-Q01, T11-Q01
Performance of Overset Mesh in Modelling Generic Wakes of sharp-edge bodiesT14-Q01 University of Alberta	Publication	2019-01-01	Suyash Verma, Hemmati, A.	T14-Q01
Secondary spanwise structures in the wake of oscillating foilsT14-Q01 University of Alberta	Publication	2020-10-01	Suyash Verma, Hemmati, A.	T14-Q01
Asymmetry in wake of oscillating foils with combined pitching and heaving motionT14-Q01 University of Alberta	Publication	2020-09-01	Suyash Verma, Hemmati, A.	T14-Q01
Microscale Underwater Energy HarvestingT14-Q01 University of Alberta	Activity	2020-03-01	Suyash Verma, Hemmati, A.	T14-Q01
Characterization of bifurcated dipole vortex streets in the wake of an oscillating foilT14-Q01 University of Alberta	Publication	2020-01-01	Suyash Verma, Hemmati, A.	T14-Q01
Response of turbulent pipe flow to targeted wall shapes at a range of Reynolds numbersT11-Q01 University of Alberta	Publication	2021-06-02	Mehran Masoumifar, Suyash Verma, Hemmati, A.	T11-Q01
The Response of Modified Turbulent Pipe-Flow Targeting Distinct Fourier Modes at a Range of Reynolds Numbers.T11-Q01 University of Alberta	Publication	2020-11-01	Mehran Masoumifar, Suyash Verma, Hemmati, A.	T11-Q01
Scaling the performance of hydrofoils with combined pitching and heaving motion in underwater swimmingT14-Q01 University of Alberta	Publication	2020-11-01	B Freeman, Suyash Verma, Hemmati, A.	T14-Q01
Three-dimensional unsteady wake dynamics of hydrofoils with combined pitching and heaving motionsT14-Q01 University of Alberta	Publication	2020-11-01	Suyash Verma, Hemmati, A.	T14-Q01
On the performance scaling of oscillating foils with combined heaving and pitching motionsT14-Q01 University of Alberta	Publication	2021-01-01	Suyash Verma, Freeman B, Hemmati, A.	T14-Q01
Three-dimensional instability in the wake of oscillating foils with combined heaving and pitchingT14-Q01 University of Alberta	Publication	2021-01-01	Suyash Verma, Hemmati, A.	T14-Q01
The recovery of turbulent pipeflow dynamics depend on the targeted wall geometries at high Reynolds numberT11-Q01 University of Alberta	Publication	2021-01-01	Mehran Masoumifar, Suyash Verma, Hemmati, A.	T11-Q01
Performance of Turbulence models in modeling pipe flow with small perturbations at a range of Reynolds numbersT11-Q01 University of Alberta	Publication	2021-01-01	Mehran Masoumifar, Suyash Verma, Hemmati, A.	T11-Q01
Evolution of vortex structures in the wake of oscillating foils with multi-degree motionPhD Candidacy Report/PropsoalT14-Q01	Publication	2021-10-05	Suyash Verma	T14-Q01
Characteristics of flow-induced structural effects in bent pipesT11-Q01-LBP1 University of Alberta	Publication	2026-07-15	Christopher Aitken, Shahab Ahmadizade, Kyle Seitz, Suyash Verma, Brett Conrad, Lyndon Lamborn, Vitaly Vorontsov, Benjamin Hanna, Hemmati, A.	T11-Q01-LBP1
Fourier pipes: Turbulent pipe flow manipulation using targeted wall-shapesT11-Q01-LBP1 University of Alberta	Publication	2025-10-08	Yaren Dincoglu, Suyash Verma, Hemmati, A.	T11-Q01-LBP1
Effect of targeted wall shape thickness on flow response and recovery for engineering designT11-Q01-LBP1 University of Alberta	Publication	2026-06-19	Yaren Dincoglu, Suyash Verma, Hemmati, A.	T11-Q01-LBP1
How Does the Length of Wall-Based Perturbations Impact Turbulent Pipe Flow Response and Recovery? T11-Q01-LBP1 University of Alberta	Publication	2026-09-01	Yaren Dincoglu, Suyash Verma, Hemmati, A.	T11-Q01-LBP1
Why do anguilliform swimmers perform undulation with wavelengths shorter than their bodylengths?T14-Q01 University of Alberta	Publication	2021-01-01	Muhammad Saif Ullah Khalid, "Junshi Wang", "Imran Akhtar", "Haibo Dong", "Moubin Liu", Hemmati, A.	T14-Q01
Larger wavelengths suit the hydrodynamics of carangiform swimmersT14-Q01 University of Alberta	Publication	2021-01-01	Muhammad Saif Ullah Khalid, "Junshi Wang", "Imran Akhtar", "Haibo Dong", "Moubin Liu", Hemmati, A.	T14-Q01
Enhanced performance of two-staged vertical axis wind turbines based on bioinspiration from fish schoolT14-Q01 University of Alberta	Publication	2021-01-01	Muhammad Saif Ullah Khalid, Wood D, Hemmati, A.	T14-Q01
The implications of separation distance and phase angle on wake dynamics of parallel pitching foilsT14-Q01 University of Alberta	Publication	2021-01-01	Ahmet Gungor, Muhammad Saif Ullah Khalid, Hemmati, A.	T14-Q01
The Implications of Flow Structures in Blood Flow in Healthy and Unhealthy Aorta University of Alberta	Publication	2018-01-01	J Yuxi, Aitken C, Punithkumar K, Noga M, Hemmati, A.
Implicationsof the trailing edge on swimming performance of Heaving panelsT14-Q01 University of Alberta	Publication	2019-01-01	A Tarokh, Hemmati, A.	T14-Q01
The propulsive performance of side-by-side foils at a range of Re and StT14-Q01 University of Alberta	Publication	2019-11-01	Ahmet Gungor, Hemmati, A.	T14-Q01
The evolution of large-scale structures in the wake of oscillating teardrop foilsT14-Q01 University of Alberta	Publication	2018-11-01	A Tarokh, Hemmati, A., Smits A	T14-Q01
The effect of Strouhal number and Reynolds number on the wake of pitching panels in underwater swimmingT14-Q01 University of Alberta	Publication	2018-09-01	A Tarokh, Hemmati, A., Smits A	T14-Q01
The wake dynamics leading to higher efficiencyversus larger thrust for heaving and pitching panels University of Alberta	Publication	2017-01-01	Hemmati, A., Smits A
Effect of trailing edge on underwater locomotion based on Immersed Boundary Method simulations University of Alberta	Publication	2017-01-01	Hemmati, A., T Burren Van, Senturk U, Smits A
The effect of wake structure development on surface pressure fluctuations University of Alberta	Publication	2017-01-01	Hemmati, A., Wood D, Martinuzzi R
The implications of regions of spin and splat contributions to pressure fluctuations in the wake of normal flat plates University of Alberta	Publication	2016-01-01	Hemmati, A., Wood D, Martinuzzi R
Performance of an open-source, sharp interface immersed boundary method in simulating the flow past rigid bodies University of Alberta	Publication	2016-01-01	Hemmati, A., Senturk U, Smits A
Effect of aspect ratio onthe wake pattern behind a finite span normal thin flat plate University of Alberta	Publication	2015-01-01	Hemmati, A., Wood D, Martinuzzi R
Momentum transport in the wake of a finite-length thin flat plate University of Alberta	Publication	2015-01-01	Hemmati, A., Wood D, Martinuzzi R
Comparing wake structuresbehind a finite aspect ratio and an infinite span normal thin flat plate University of Alberta	Publication	2014-01-01	Hemmati, A., Wood D, Martinuzzi R
Evolution of the wake structuresbehind an infinite span normal thin flat plate University of Alberta	Publication	2014-01-01	Hemmati, A., Wood D, Martinuzzi R
Experiences in Modeling Wind Loading on Photovoltaic (PV) Modules and Solar Collectors University of Alberta	Publication	2013-01-01	Hemmati, A., Mohebi M, Wood D, Martinuzzi R
Instantaneous forces and moments on inclined flat plates University of Alberta	Publication	2012-09-01	X Ortiz, Hemmati, A., Rival D, Wood D
Wake structures and propulsive performance in heaving panels with a small aspect ratioT14-Q01 University of Alberta	Publication	2019-01-01	A Tarokh, Hemmati, A.	T14-Q01
Implications of reduced frequency on wake structure of tandem in-line foilsT14-Q01 University of Alberta	Publication	2019-01-01	E Simsek, Senturk U, Hemmati, A.	T14-Q01
The effect of pitching frequency on the hydrodynamics of oscillating foilsT14-Q01 University of Alberta	Publication	2019-08-31	Hemmati, A., Smits A	T14-Q01
The effect of single dielectric barrier discharge actuators in controlling flow over an Ahmed body	Publication	2020-12-15	S Karimi, Arash Zargar, Hemmati, A., "M Mani"	T14-Q01, T11-Q01
The scaling of propulsive performance of tandem pitching foils in side-by-side configurationT14-Q01 University of Alberta	Publication	2019-01-01	Ahmet Gungor, Hemmati, A.	T14-Q01
Reynolds number effects on the wake structures of pitching panels of small aspect ratioT14-Q01 University of Alberta	Publication	2019-01-01	Hemmati, A., A J Smits	T14-Q01
Surface pressure and wake dynamics behind flat plates University of Alberta	Publication	2019-01-01	Hemmati, A., Wood D, Martinuzzi R
A Numerical Study for Thermocapillary Induced Pattering of Thin Liquid Films University of Alberta	Publication	2019-01-01	Ali Mohammadtabar, Nazaripoor A, Riad A, Hemmati, A., Sadrzadeh, M.
Effects of trailing edge shape on vortex formation by pitching panels of small aspect ratioT14-Q01 University of Alberta	Publication	2019-01-01	Hemmati, A., T Buren Van, A J Smits	T14-Q01
On simulating the flow past a normal thin flat plate University of Alberta	Publication	2018-01-01	Hemmati, A., Wood D, Martinuzzi R
Effect of side-edge vortices and secondary induced flow on the wake of normal thin flat plates University of Alberta	Publication	2016-01-01	Hemmati, A., Wood D, Martinuzzi R
Characteristics of distinct flow regimes in the wake of an infinite span normal thin flat plate University of Alberta	Publication	2015-01-01	Hemmati, A., Wood D, Martinuzzi R
The Aerodynamic Characterization Of Generic Tail Fin Shapes University of Alberta	Publication	2013-01-01	K Singh, Hemmati, A., Wood D
Evolution of vortex formation in the wake of thin flat plates with different aspect-ratios University of Alberta	Publication	2017-01-01	Hemmati, A., Wood D, Martinuzzi R
Wake dynamics behind a normal thin flat plate at moderate Reynolds numbers University of Alberta	Publication	2015-01-01	Hemmati, A., Wood D, Martinuzzi R
Wake symmetry and its effect on wake swimming synchronizationT14-Q01 University of Alberta	Publication	2020-10-01	Ahmet Gungor, Hemmati, A.	T14-Q01
Unsteadiness in the wake of a long wall-mounted cylinder at high angles of incident	Publication	2020-09-01	Arash Zargar, Hemmati, A.	T11-Q01
Benchmark Study of RANS Turbulence Modeling of Pipeflow Past Square Bar RoughnessT11-Q01 University of Alberta	Publication	2021-01-11	Shubham Goswami, Hemmati, A.	T11-Q01
Can we use the swimming habits of fish for energy harvesting in rivers?T14-Q01 University of Alberta	Activity	2020-03-01	Ahmet Gungor, Hemmati, A.	T14-Q01
Implications of the trailing edge on swimming performance of oscillating panels University of Alberta	Publication	2018-01-01	A Tarokh, Hemmati, A.
Implications of combined oscillatory motions on wake dynamics for underwater swimming University of Alberta	Publication	2018-09-01	M Saeedi, Hemmati, A., Smits A
Mid-cycle phase variations lead to higher stability in swimming fish with side-by-side configurationT14-Q01 University of Alberta	Publication	2020-01-01	Ahmet Gungor, Hemmati, A.	T14-Q01
The effect of multiple square bar roughness in reducing drag in pipeflow at high Reynolds numbersT11-Q01 University of Alberta	Publication	2020-01-01	Shubham Goswami, A J Smits, Hemmati, A.	T11-Q01
The implications of two outlet boundary conditions on blood flow simulations in normal aorta of pediatric subjectsT14-Q01 University of Alberta	Publication	2020-01-01	Y Jia, Noga M, Punithkumar K, Hemmati, A.	T14-Q01
The wake symmetry behind tandem side-by-side foilsT14-Q01 University of Alberta	Publication	2020-01-01	Ahmet Gungor, Hemmati, A.	T14-Q01
The wake transitions to unsteadiness at moderate yaw angles for long-rectangular cylindersT14-Q01 University of Alberta	Publication	2020-01-01	Arash Zargar, Ahmet Gungor, Tarokh A, Hemmati, A.	T14-Q01
Non-Newtonian effects in pipeflow with square bar roughness at moderate Reynolds numbersT11-Q01 University of Alberta	Publication	2020-01-01	Shubham Goswami, Hemmati, A.	T11-Q01
The effect of depth-ratio on the wake of long-rectangular cylindersT11-Q01 University of Alberta	Publication	2020-01-01	Arash Zargar, Tarokh A, Hemmati, A.	T11-Q01
Performance enhancement of a two-phase closed thermosyphon with a vortex generating obstacle University of Alberta	Publication	2020-01-01	A Tarokh, Bliss C, Hemmati, A.
Coherent structures in the wake of a large depth-ratio wall-mounted rectangular cylinder at high incidence anglesT14-Q01 University of Alberta	Publication	2020-11-01	Arash Zargar, Hemmati, A.	T14-Q01
Recovery of viscoelastic turbulent pipeflow past square bar roughnessT11-Q01 University of Alberta	Publication	2020-11-01	Shubham Goswami, Hemmati, A.	T11-Q01
Transition in the wake symmetry of tandem side-by-side oscillating foils.T14-Q01 University of Alberta	Publication	2020-11-01	Ahmet Gungor, Hemmati, A.	T14-Q01
Evolution of turbulent pipe flow recovery over a square bar roughness element at a range of Reynolds numbersT11-Q01 University of Alberta	Publication	2021-01-01	Shubham Goswami, Hemmati, A.	T11-Q01
The wake topology of a wall-mounted long cylinder at low Reynolds numbers.T14-Q01 University of Alberta	Publication	2021-01-01	Arash Zargar, Tarokh A, Hemmati, A.	T14-Q01
How are the wake dynamics altered by abrupt changes to the oscillation phase angle?T14-Q01 University of Alberta	Publication	2021-01-01	Ahmet Gungor, Hemmati, A.	T14-Q01
The evolution of secondary structures in the presence of interacting wakes: tandem side-by-side foilsT14-Q01 University of Alberta	Publication	2021-01-01	Ahmet Gungor, Hemmati, A.	T14-Q01
The secondary instability in the oblique wake of a large-depth-ratio prismT14-Q01 University of Alberta	Publication	2021-01-01	Arash Zargar, Hemmati, A.	T14-Q01
Climate Change, Technology and Policy	Activity	2020-07-08	Hemmati, A.	T14-Q01, T11-Q01
Performance of Turbulence Models in Simulating Wind Loads on Photovoltaics Modules	Publication	2022-04-28	Hemmati, A., Mireille Tadie, Carlos Lange, Brian Fleck
Wake dynamics and surface pressure variations on two-dimensional normal flat platesT14-Q01, T11-Q01 University of Alberta	Publication	2019-04-01	Hemmati, A., David H Wood, Robert J Martinuzzi	T14-Q01, T11-Q01
Performance of Turbulence Models in Simulating Wind Loads on Photovoltaics ModulesT14-Q01, T11-Q01 University of Alberta	Publication	2019-08-01	Mireille Tadie, Hemmati, A., Carlos Lange, Brian Fleck	T14-Q01, T11-Q01
Response of turbulent pipeflow to multiple square bar roughness elements at high Reynolds numberT11-Q01 University of Alberta	Publication	2020-07-01	Shubham Goswami, Hemmati, A.	T11-Q01
Response of Viscoelastic Turbulent Pipeflow Past Square Bar Roughness: The Effect on Mean FlowT11-Q01 University of Alberta	Publication	2021-07-01	Shubham Goswami, Hemmati, A.	T11-Q01
Coherent structures in the wake of a long wall-mounted rectangular prism at large incident anglesT14-Q01 University of Alberta	Publication	2021-03-01	Arash Zargar, Ahmet Gungor, Ali Tarokh, Hemmati, A.	T14-Q01

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Hemmati, Arman

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Hemmati, Arman

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