Iman Borazjani

About

Our nationally recognized faculty, researchers and professional staff are dedicated to excellence in research, education, innovation and service. Learn more about the individuals who make up the Department of Mechanical Engineering by visiting their profiles.

Research topics

• Computer Science
• Artificial Intelligence
• Mechanics
• Physics
• Computer vision
• Optics
• Medicine
• Cardiology
• Acoustics

Selected publications

• Automatic segmentation of the left ventricle in echocardiographic images using convolutional neural networks

  Quantitative Imaging in Medicine and Surgery · 2021 · 41 citations

  Senior authorCorresponding

  BACKGROUND: Two-dimensional echocardiography (2D echo) is the most widely used non-invasive imaging modality due to its fast acquisition time, low cost, and high temporal resolution. Boundary identification of left ventricle (LV) in 2D echo, i.e., image segmentation, is the first step to calculate relevant clinical parameters. Currently, LV segmentation in 2D echo is primarily conducted semi-manually. A fully-automatic segmentation of the LV wall needs further development. METHODS: We evaluated…

  DOI

• Controlling Flow Separation on a Thick Airfoil Using Backward Traveling Waves

  AIAA Journal · 2020 · 36 citations

  Senior authorCorresponding

  Large-eddy simulations (LESs) of low-Reynolds-number flow over a NACA0018 airfoil are performed to investigate flow control at the stall angle of attack (15 deg) by low-amplitude surface waves (actuations) of different types (backward/forward traveling and standing waves) on the airfoil’s suction side. It is found that the backward (toward downstream) traveling waves, inspired from aquatic swimmers, are more effective than forward traveling and standing wave actuations. The results of simulation…

  DOI

• Flow-induced vibration of a circular cylinder with an attached elastic plate of high aspect ratio

  Physics of Fluids · 2022-10-19 · 16 citations

  articleOpen accessSenior authorCorresponding

  The flow-induced transverse vibration of a cylinder (diameter D*) with an attached flexible and elastic plate of high aspect ratio to its leeward side is investigated numerically at a low Reynolds number of 150 for a range of reduced velocities (Ur) using an in-house developed fluid solver based on curvilinear immersed boundary method strongly coupled with an open-source finite element-based structural solver. It was observed that an attached elastic plate of width B=B*/D*=0.1 and length L=L*/D*…

  PublisherOA PDFDOI

• Breaking the symmetry of a wavy channel alters the route to chaotic flow

  Physical review. E · 2024-04-04 · 15 citations

  articleOpen access

  We numerically explore the two-dimensional, incompressible, isothermal flow through a wavy channel, with a focus on how the channel geometry affects the routes to chaos at Reynolds numbers between 150 and 1000. We find that (i) the period-doubling route arises in a symmetric channel, (ii) the Ruelle-Takens-Newhouse route arises in an asymmetric channel, and (iii) the type-II intermittency route arises in both asymmetric and semiwavy channels. We also find that the flow through the semiwavy chann…

  PublisherOA PDFDOI

• A contact model based on the coefficient of restitution for simulations of bio‐prosthetic heart valves

  International Journal for Numerical Methods in Biomedical Engineering · 2023-07-15 · 14 citations

  articleOpen accessSenior authorCorresponding

  A new general contact model is proposed for preventing inter-leaflet penetration of bio-prosthetic heart valves (BHV) at the end of the systole, which has the advantage of applying kinematic constraints directly and creating smooth free edges. At the end of each time step, the impenetrability constraints and momentum exchange between the impacting bodies are applied separately based on the coefficient of restitution. The contact method is implemented in a rotation-free, large deformation, and th…

  PublisherOA PDFDOI

Recent grants

• CAREER: Fluid-Structure Interaction (FSI) in Biological Flows

  NSF · $504k · 2015–2018

• CAREER: Fluid-Structure Interaction (FSI) in Biological Flows

  NSF · $290k · 2018–2021

• Collaborative Research: Controlling Flow Separation via Traveling Wave Actuators

  NSF · $245k · 2019–2023

Frequent coauthors

• Fotis Sotiropoulos

  135 shared

• Amir Akbarzadeh

  61 shared

• Mohsen Daghooghi

  Texas A&M University

  39 shared

• Trung Bao Le

  University of Illinois Urbana-Champaign

  36 shared

• Mohammadali Hedayat

  Texas A&M University

  35 shared

• Hossein Asadi

  Shiraz University of Technology

  30 shared

• Hafez Asgharzadeh

  29 shared

• George Lauder

  Harvard University

  29 shared

Awards & honors

• American Institute of Aeronautics and Astronautics (AIAA) As…
• ASME Fellow - 2020
• American Institute of Aeronautics and Astronautics (AIAA) se…
• Fulbright Scholar - 2017-2018
• UB Exceptional Scholars Young Investigator Award, University…

Similar researchers at Texas A&M University

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• Mark Balash-39
• David Claridgeh-34