1-20 of 104
Goodarz Ahmadi
Close
Save search
Follow your search
Access your saved searches in your account
Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Investigation of Tool-Joint Effect on Non-Newtonian Drilling Fluids Following the Herschel–Bulkley Model Flow Behavior in Oil Well Drilling

Ardeshir Gholami, Zohreh Mansoori, Majid Saffar Aval, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A026, August 10–12, 2021
Paper No: FEDSM2021-65577
DOI: https://doi.org/10.1115/FEDSM2021-65577
View Paper
PDF
Topics: Drilling, Flow (Dynamics), Fluids, Non-Newtonian fluids, Oil well drilling, Oil wells, Thixotropy
Proceedings Papers

Investigation of Proppant Distributions in Rock Fractures With Applications to Hydraulic Fracturing

Amir A. Mofakham, Farid Rousta, Dustin M. Crandall, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A028, August 10–12, 2021
Paper No: FEDSM2021-65833
DOI: https://doi.org/10.1115/FEDSM2021-65833
View Paper
PDF
Topics: Fracture (Materials), Fracture (Process), Hydraulic fracturing, Rocks, Computational fluid dynamics, Discrete element methods, Engineering simulation, Fluid dynamics, Simulation, Fluids
Proceedings Papers

Influence of Thermal Plume on Particle Inhalability of a Lying Mannequin in a Room

Maryam Habibi, Mohsen Heidary, Mohammad Mehdi Tavakol, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A016, August 10–12, 2021
Paper No: FEDSM2021-65652
DOI: https://doi.org/10.1115/FEDSM2021-65652
View Paper
PDF
Topics: Particulate matter, Plumes (Fluid dynamics), Turbulence, Microparticles, Respiratory system, Computational fluid dynamics, Computer simulation, Computer software, Computerized tomography, Flow (Dynamics)
Proceedings Papers

Significance of Vocal Tract Geometrical Variations and Loudness on Airflow and Droplet Dispersion in a Two-Dimensional Representation of [F]

Amir A. Mofakham, Brian T. Helenbrook, Tanvir Ahmed, Byron D. Erath, Andrea R. Ferro, Deborah M. Brown, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A001, August 10–12, 2021
Paper No: FEDSM2021-65485
DOI: https://doi.org/10.1115/FEDSM2021-65485
View Paper
PDF
Topics: Air flow, Drops, Loudness (Acoustics), Computer software, Dynamics (Mechanics), Computational fluid dynamics, Diseases, Engineering simulation, Flow (Dynamics), Lung
Proceedings Papers

Dispersion of Particles Coming Out of the Mouth While Speaking in a Ventilated Indoor Environment

Morteza Ali Masoomi, Mazyar Salmanzadeh, Goodarz Ahmadi
Proc. ASME. FEDSM2021, Volume 3: Fluid Mechanics; Micro and Nano Fluid Dynamics; Multiphase Flow, V003T08A017, August 10–12, 2021
Paper No: FEDSM2021-65837
DOI: https://doi.org/10.1115/FEDSM2021-65837
View Paper
PDF
Topics: Particulate matter, Ventilation
Proceedings Papers

A New Approach for Response Analysis of Nonlinear Systems Under Random Excitations

Ismail I. Orabi, Goodarz Ahmadi
Proc. ASME. DETC91, 13th Biennial Conference on Mechanical Vibration and Noise: Vibration Analysis — Analytical and Computational, 147-151, September 22–25, 1991
Paper No: DETC1991-0329
DOI: https://doi.org/10.1115/DETC1991-0329
View Paper
PDF
Topics: Nonlinear systems, Random excitation, Excitation, Computer simulation, Statistics
Proceedings Papers

Improved DRW Model for Prediction of Deposition and Dispersion of Nano- and Micro-Particles in Turbulent Flows

Amir A. Mofakham, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A018, July 13–15, 2020
Paper No: FEDSM2020-20034
DOI: https://doi.org/10.1115/FEDSM2020-20034
View Paper
PDF
Topics: Flow (Dynamics), Microparticles, Particulate matter, Turbulence
Proceedings Papers

Computational Analysis of Fiber Dynamics in Human Nasal Cavity

Jiawei Ma, Jiyuan Tu, Lin Tian, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A019, July 13–15, 2020
Paper No: FEDSM2020-20035
DOI: https://doi.org/10.1115/FEDSM2020-20035
View Paper
PDF
Topics: Cavities, Dynamics (Mechanics), Fibers, Particulate matter, Rotation, Air flow, Engineering simulation, Polyester fibers, Simulation, Boundary-value problems
Proceedings Papers

A DNS Study of the Dispersion and Deposition of Nano- and Micro-Particles in a Turbulent Channel Flow

Amir A. Mofakham, Goodarz Ahmadi, John B. McLaughlin
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A020, July 13–15, 2020
Paper No: FEDSM2020-20110
DOI: https://doi.org/10.1115/FEDSM2020-20110
View Paper
PDF
Topics: Channel flow, Lift (Fluid dynamics), Microparticles, Turbulence
Proceedings Papers

Multiphase Flow Development on Single Particle Migration in Low Reynolds Number Fluid Domains

Mahyar Pourghasemi, Nima Fathi, Peter Vorobieff, Goodarz Ahmadi, Kevin R. Anderson
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A038, July 13–15, 2020
Paper No: FEDSM2020-20477
DOI: https://doi.org/10.1115/FEDSM2020-20477
View Paper
PDF
Topics: Fluids, Multiphase flow, Particulate matter, Reynolds number
Proceedings Papers

Particle Transport and Deposition in a Ventilated Room With a Standing Mannequin

Mehrdad Azhdari, Mohammad Mehdi Tavakol, Goodarz Ahmadi
Proc. ASME. FEDSM2020, Volume 2: Fluid Mechanics; Multiphase Flows, V002T04A023, July 13–15, 2020
Paper No: FEDSM2020-20450
DOI: https://doi.org/10.1115/FEDSM2020-20450
View Paper
PDF
Topics: Particulate matter, Air flow, Dampers, Diffusers, Flow (Dynamics), Simulation results, Air conditioning, Computer simulation, Computer software, Density
Journal Articles

Improved Discrete Random Walk Stochastic Model for Simulating Particle Dispersion and Deposition in Inhomogeneous Turbulent Flows

Amir A. Mofakham, Goodarz Ahmadi
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. October 2020, 142(10): 101401.
Paper No: FE-20-1197
DOI: https://doi.org/10.1115/1.4047538
Published Online: July 13, 2020
View Article
PDF
Topics: Particulate matter, Turbulence, Fluids
Proceedings Papers

Numerical Simulation of Airflow and Ellipsoidal Particle Deposition in Human Upper and Central Respiratory Tract

Morteza Kiasadegh, Zahra Dehghani, Arash Naseri, Omid Abouali, Goodarz Ahmadi
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A041, July 28–August 1, 2019
Paper No: AJKFluids2019-4966
DOI: https://doi.org/10.1115/AJKFluids2019-4966
View Paper
PDF
Topics: Air flow, Computer simulation, Particulate matter, Respiratory system, Fibers, Trajectories (Physics), Bifurcation, Computerized tomography, Equations of motion, Flow (Dynamics)
Proceedings Papers

Accuracy of the CRW Models for Prediction of the Deposition and Dispersion of Particles in Inhomogeneous Turbulent Channel Flows

Amir A. Mofakham, Goodarz Ahmadi
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A018, July 28–August 1, 2019
Paper No: AJKFluids2019-4856
DOI: https://doi.org/10.1115/AJKFluids2019-4856
View Paper
PDF
Topics: Channel flow, Particulate matter, Turbulence, Flow (Dynamics), Fluctuations (Physics), Fluids, Collisions (Physics), Computer simulation, Drag (Fluid dynamics), Engineering simulation
Proceedings Papers

Inclusion of Heat Transfer on Settling Behavior of Elliptical Particles: Immersed Boundary-Thermal Lattice Boltzmann Method

Sajjad Karimnejad, Amin Amiri Delouei, Mohsen Nazari, Mohammad Mohsen Shahmardan, Goodarz Ahmadi, Amir A. Mofakham
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A067, July 28–August 1, 2019
Paper No: AJKFluids2019-5676
DOI: https://doi.org/10.1115/AJKFluids2019-5676
View Paper
PDF
Topics: Flow (Dynamics), Heat transfer, Lattice Boltzmann methods, Particulate matter
Proceedings Papers

Deposition of Ellipsoidal Fibers in Nasal Cavity: Influence of Non-Creeping Flow Conditions

Mehdi Aboulhasan Tash, Mohammad Mehdi Tavakol, Omid Abouali, Goodarz Ahmadi
Proc. ASME. AJKFluids2019, Volume 5: Multiphase Flow, V005T05A053, July 28–August 1, 2019
Paper No: AJKFluids2019-5378
DOI: https://doi.org/10.1115/AJKFluids2019-5378
View Paper
PDF
Topics: Cavities, Fibers, Flow (Dynamics), Particulate matter, Turbulence, Air flow, Computer software, Fluid-dynamic forces, Modeling, Computer simulation
Proceedings Papers

Numerical Simulations of Turbulent Flow Through a 90° Elbow

Ravon Venters, Brian Helenbrook, Goodarz Ahmadi
Proc. ASME. AJKFluids2019, Volume 2: Computational Fluid Dynamics, V002T02A061, July 28–August 1, 2019
Paper No: AJKFluids2019-5498
DOI: https://doi.org/10.1115/AJKFluids2019-5498
View Paper
PDF
Topics: Computer simulation, Turbulence, Flow (Dynamics), Reynolds-averaged Navier–Stokes equations, Simulation, Anisotropy, Stress
Journal Articles

Turbulent Flow Through a Ducted Elbow and Plugged Tee Geometry: An Experimental and Numerical Study

Andrew M. Bluestein, Ravon Venters, Douglas Bohl, Brian T. Helenbrook, Goodarz Ahmadi
Journal: Journal of Fluids Engineering
Article Type: Research-Article
J. Fluids Eng. August 2019, 141(8): 081101.
Paper No: FE-18-1329
DOI: https://doi.org/10.1115/1.4042256
Published Online: January 30, 2019
View Article
PDF
Topics: Flow (Dynamics), Geometry, Turbulence, Reynolds number
Proceedings Papers

Study of Transmissivity of a Fracture Under Shearing

Amir A. Mofakham, Goodarz Ahmadi, Matthew Stadelman, Kevin Shanley, Dustin Crandall
Proc. ASME. FEDSM2018, Volume 2: Development and Applications in Computational Fluid Dynamics; Industrial and Environmental Applications of Fluid Mechanics; Fluid Measurement and Instrumentation; Cavitation and Phase Change, V002T11A012, July 15–20, 2018
Paper No: FEDSM2018-83348
DOI: https://doi.org/10.1115/FEDSM2018-83348
View Paper
PDF
Topics: Die cutting, Fracture (Materials), Fracture (Process), Shearing (Deformation), Resolution (Optics), Computerized tomography, Flow (Dynamics), Pressure drop, Surface roughness, Navier-Stokes equations
Proceedings Papers

Interactions of Flow Structure With Nano- and Micro-Particles in Turbulent Channel Flows

Amir A. Mofakham, Goodarz Ahmadi, John McLaughlin
Proc. ASME. FEDSM2018, Volume 3: Fluid Machinery; Erosion, Slurry, Sedimentation; Experimental, Multiscale, and Numerical Methods for Multiphase Flows; Gas-Liquid, Gas-Solid, and Liquid-Solid Flows; Performance of Multiphase Flow Systems; Micro/Nano-Fluidics, V003T19A003, July 15–20, 2018
Paper No: FEDSM2018-83349
DOI: https://doi.org/10.1115/FEDSM2018-83349
View Paper
PDF
Topics: Channel flow, Flow (Dynamics), Microparticles, Turbulence, Particulate matter, Relaxation (Physics), Eddies (Fluid dynamics), Fluids, Computer simulation, Drag (Fluid dynamics)