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Journal Articles

Computational Study on the Effects of Valve Orientation on the Hemodynamics and Leaflet Dynamics of Bioprosthetic Pulmonary Valves

Kwang Bem Ko, Jung-Hee Seo, Ashish Doshi, Danielle Gottlieb Sen, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. December 2024, 146(12): 121002.
Paper No: BIO-24-1133
https://doi.org/10.1115/1.4066178
Published Online: September 6, 2024
View Article titled, Computational Study on the Effects of Valve Orientation on the Hemodynamics and Leaflet Dynamics of Bioprosthetic Pulmonary Valves
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Topics: Valves, Flow (Dynamics), Hemodynamics, Pulmonary artery, Pressure
Journal Articles

Quantifying the Effect of Body Habitus on Cardiac Auscultation Via Computational Hemoacoustics

David Hojun Lee, Jung-Hee Seo, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. February 2023, 145(2): 024503.
Paper No: BIO-22-1165
https://doi.org/10.1115/1.4055513
Published Online: October 6, 2022
View Article titled, Quantifying the Effect of Body Habitus on Cardiac Auscultation Via Computational Hemoacoustics
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Topics: Blood flow, Elastic waves, Emission spectroscopy, Hemodynamics, Signals, Simulation, Spectroscopy, Valves, Computational methods, Modeling
Journal Articles

A Noninvasive Assessment of Flow Based on Contrast Dispersion in Computed Tomography Angiography: A Computational and Experimental Phantom Study

Parastou Eslami, Jung-Hee Seo, Amir Ali Rahsepar, Asim Shafique, Shirley F. Rollison, Albert C. Lardo, Rajat Mittal, Marcus Y. Chen
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. September 2022, 144(9): 091009.
Paper No: BIO-20-1358
https://doi.org/10.1115/1.4053997
Published Online: April 1, 2022
View Article titled, A Noninvasive Assessment of Flow Based on Contrast Dispersion in Computed Tomography Angiography: A Computational and Experimental Phantom Study
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Topics: Flow (Dynamics), Phantoms, Imaging, Computerized tomography
Includes: Supplementary data
Journal Articles

Computational Modeling of Aortic Stenosis With a Reduced Degree-of-Freedom Fluid-Structure Interaction Valve Model

Chi Zhu, Jung-Hee Seo, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. March 2022, 144(3): 031012.
Paper No: BIO-20-1495
https://doi.org/10.1115/1.4052576
Published Online: November 3, 2021
View Article titled, Computational Modeling of Aortic Stenosis With a Reduced Degree-of-Freedom Fluid-Structure Interaction Valve Model
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Topics: Flow (Dynamics), Valves, Aorta, Fluid structure interaction, Degrees of freedom, Pressure
Journal Articles

Flow Dynamics in the Aortic Arch and Its Effect on the Arterial Input Function in Cardiac Computed Tomography

Parastou Eslami, Jung-Hee Seo, Albert C. Lardo, Marcus Y. Chen, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. October 2019, 141(10): 104501.
Paper No: BIO-18-1280
https://doi.org/10.1115/1.4043076
Published Online: July 15, 2019
View Article titled, Flow Dynamics in the Aortic Arch and Its Effect on the Arterial Input Function in Cardiac Computed Tomography
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Topics: Aorta, Aortic arch, Computational fluid dynamics, Computerized tomography, Flow (Dynamics), Valves, Density, Simulation, Flight
Journal Articles

Computational Modeling and Analysis of Murmurs Generated by Modeled Aortic Stenoses

Chi Zhu, Jung-Hee Seo, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. April 2019, 141(4): 041007.
Paper No: BIO-18-1344
https://doi.org/10.1115/1.4042765
Published Online: March 5, 2019
View Article titled, Computational Modeling and Analysis of Murmurs Generated by Modeled Aortic Stenoses
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Topics: Acoustics, Aorta, Biological tissues, Hemodynamics, Pressure, Signals, Simulation, Spectra (Spectroscopy), Vacuum, Flow (Dynamics)
Proceedings Papers

Aeromechanics of Long Jumps in Spider Crickets: Insights From Experiments and Modeling

Emily H. Palmer, Nicolas Deshler, Rajat Mittal
Proc. ASME. IMECE2017, Volume 7: Fluids Engineering, V007T09A080, November 3–9, 2017
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2017-73498
https://doi.org/10.1115/IMECE2017-73498
View Paper titled, Aeromechanics of Long Jumps in Spider Crickets: Insights From Experiments and Modeling
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Topics: Design, Drag (Fluid dynamics), Modeling, Robots
Journal Articles

A Computational Method for Analyzing the Biomechanics of Arterial Bruits

Chi Zhu, Jung-Hee Seo, Hani Bakhshaee, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. May 2017, 139(5): 051008.
Paper No: BIO-17-1028
https://doi.org/10.1115/1.4036262
Published Online: April 6, 2017
View Article titled, A Computational Method for Analyzing the Biomechanics of Arterial Bruits
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Topics: Acoustics, Biological tissues, Biomechanics, Compression, Computational methods, Elastic waves, Flow (Dynamics), Hemodynamics, Shear (Mechanics), Shear waves
Proceedings Papers

Coupled Fluid-Chemical Computational Modeling of Anticoagulation Therapies in a Stented Artery

Anirban Ghosh, Jung-Hee Seo, Rajat Mittal
Proc. ASME. IMECE2015, Volume 3: Biomedical and Biotechnology Engineering, V003T03A050, November 13–19, 2015
Publisher: American Society of Mechanical Engineers
Paper No: IMECE2015-52638
https://doi.org/10.1115/IMECE2015-52638
View Paper titled, Coupled Fluid-Chemical Computational Modeling of Anticoagulation Therapies in a Stented Artery
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Topics: Computer simulation, Fluids, Patient treatment, Stents, Flow (Dynamics), Drugs, Thrombosis, Convection, Diffusion (Physics), Platelets
Journal Articles

Hemodynamics in the Left Atrium and Its Effect on Ventricular Flow Patterns

Vijay Vedula, Richard George, Laurent Younes, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. November 2015, 137(11): 111003.
Paper No: BIO-15-1142
https://doi.org/10.1115/1.4031487
Published Online: September 16, 2015
View Article titled, Hemodynamics in the Left Atrium and Its Effect on Ventricular Flow Patterns
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Topics: Flow (Dynamics), Physiology, Vortices, Hemodynamics
Journal Articles

Computational Study of Computed Tomography Contrast Gradients in Models of Stenosed Coronary Arteries

Parastou Eslami, Jung-Hee Seo, Amir Ali Rahsepar, Richard George, Albert C. Lardo, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. September 2015, 137(9): 091002.
Paper No: BIO-14-1487
https://doi.org/10.1115/1.4030891
Published Online: September 1, 2015
View Article titled, Computational Study of Computed Tomography Contrast Gradients in Models of Stenosed Coronary Arteries
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Topics: Coronary arteries, Flow (Dynamics), Simulation, Physiology
Journal Articles

Computational Study of Hemodynamic Effects of Abnormal E / A Ratio on Left Ventricular Filling

Xudong Zheng, Qian Xue, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Research-Article
J Biomech Eng. June 2014, 136(6): 061005.
Paper No: BIO-13-1292
https://doi.org/10.1115/1.4027268
Published Online: April 25, 2014
View Article titled, Computational Study of Hemodynamic Effects of Abnormal E / A Ratio on Left Ventricular Filling
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Topics: Blood, Flow (Dynamics), Hemodynamics, Vortices, Waves, Simulation
Proceedings Papers

Computational Modeling and Analysis of Hemodynamic Effects of Diastolic Heart Dysfunction During the Whole Cardiac Cycle

Xudong Zheng, Rajat Mittal, Qian Xue
Proc. ASME. SBC2013, Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments, V01AT19A001, June 26–29, 2013
Publisher: American Society of Mechanical Engineers
Paper No: SBC2013-14050
https://doi.org/10.1115/SBC2013-14050
View Paper titled, Computational Modeling and Analysis of Hemodynamic Effects of Diastolic Heart Dysfunction During the Whole Cardiac Cycle
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Topics: Cardiac cycle, Computer simulation, Hemodynamics, Diseases, Biomechanics, Dynamics (Mechanics), Energy budget (Physics), Engineering simulation, Flow (Dynamics), Fluid mechanics
Journal Articles

Comparative Analysis of Thrust Production for Distinct Arm-Pull Styles in Competitive Swimming

Alfred von Loebbecke, Rajat Mittal
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. July 2012, 134(7): 074501.
https://doi.org/10.1115/1.4007028
Published Online: July 13, 2012
View Article titled, Comparative Analysis of Thrust Production for Distinct Arm-Pull Styles in Competitive Swimming
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Topics: Computational fluid dynamics, Drag (Fluid dynamics), Thrust, Engineering simulation, Simulation, Lift (Fluid dynamics), Water
Journal Articles

Propulsive Efficiency of the Underwater Dolphin Kick in Humans

Alfred von Loebbecke, Rajat Mittal, Frank Fish, Russell Mark
Journal: Journal of Biomechanical Engineering
Publisher: ASME
Article Type: Technical Briefs
J Biomech Eng. May 2009, 131(5): 054504.
https://doi.org/10.1115/1.3116150
Published Online: April 13, 2009
View Article titled, Propulsive Efficiency of the Underwater Dolphin Kick in Humans
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Topics: Computational fluid dynamics, Computerized tomography, Engineering simulation, Kinematics, Simulation, Propulsion, Waves, Biomechanics, Lasers
Proceedings Papers

Simulations of Complex Flows and Fluid-Structure Interaction Problems on Fixed Cartesian Grids

Fady M. Najjar, Rajat Mittal
Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 1029-1033, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45577
https://doi.org/10.1115/FEDSM2003-45577
View Paper titled, Simulations of Complex Flows and Fluid-Structure Interaction Problems on Fixed Cartesian Grids
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Topics: Flow (Dynamics), Fluid structure interaction, Simulation, Algebra, Poisson equation, Pressure
Proceedings Papers

A Computational Methodology for Large-Eddy Simulation of Tip-Clearance Flows

Donghyun You, Rajat Mittal, Meng Wang, Parviz Moin
Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 1139-1147, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45395
https://doi.org/10.1115/FEDSM2003-45395
View Paper titled, A Computational Methodology for Large-Eddy Simulation of Tip-Clearance Flows
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Topics: Clearances (Engineering), Flow (Dynamics), Large eddy simulation, Rotors, Blades, Boundary layers, Dynamics (Mechanics), Engineering simulation, Fluctuations (Physics), Pressure
Proceedings Papers

Vortex Induced Auto-Rotation of a Hinged Plate: A Computational Study

Veeraraghavan Seshadri, Rajat Mittal, H. S. Udaykumar
Proc. ASME. FEDSM2003, Volume 1: Fora, Parts A, B, C, and D, 121-125, July 6–10, 2003
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2003-45512
https://doi.org/10.1115/FEDSM2003-45512
View Paper titled, Vortex Induced Auto-Rotation of a Hinged Plate: A Computational Study
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Topics: Rotation, Vortices, Computer simulation, Engineering simulation, Flat plates, Flow (Dynamics), Reynolds number, Simulation, Vortex shedding
Proceedings Papers

Vortex Dynamics and Mechanisms for Viscous Losses in the Tip-Clearance Flow

Donghyun You, Meng Wang, Parviz Moin, Rajat Mittal
Proc. ASME. FEDSM2005, Volume 1: Symposia, Parts A and B, 1601-1610, June 19–23, 2005
Publisher: American Society of Mechanical Engineers
Paper No: FEDSM2005-77175
https://doi.org/10.1115/FEDSM2005-77175
View Paper titled, Vortex Dynamics and Mechanisms for Viscous Losses in the Tip-Clearance Flow
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Topics: Clearances (Engineering), Dynamics (Mechanics), Flow (Dynamics), Vortices, Leakage, Cascades (Fluid dynamics), Turbulence, Fluctuations (Physics), Kinetic energy, Large eddy simulation
Journal Articles

Vortex Dynamics and Low-Pressure Fluctuations in the Tip-Clearance Flow

Donghyun You, Meng Wang, Parviz Moin, Rajat Mittal
Journal: Journal of Fluids Engineering
Publisher: ASME
Article Type: Technical Papers
J. Fluids Eng. August 2007, 129(8): 1002–1014.
https://doi.org/10.1115/1.2746911
Published Online: January 24, 2007
View Article titled, Vortex Dynamics and Low-Pressure Fluctuations in the Tip-Clearance Flow
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Topics: Blades, Cavitation, Clearances (Engineering), Flow (Dynamics), Fluctuations (Physics), Leakage, Pressure, Vortices, Dynamics (Mechanics), Separation (Technology)