Contact

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Education

Ph.D. Candidate

Department of Mechanical System Engineering, Jeonbuk National University

M.Sc.

Graduate University of Advanced Technology, Kerman-Iran. Department of Mechanical Engineering

B.Sc

Hormozgan University, Bandar Abbas-Iran. Department of Mechanical Engineering.

RESEARCH/INDUSTRIAL EXPERIENCE

Experimental investigation of vortex generation and evolution, using high-speed flow visualization
Evaluation of rotating blade‘s vortices in downwash flow using Particle Image Velocimetry (PIV)
Vortex detection method on the PIV velocity field
Numerical simulation of particle transport and distribution in a ventilated room
Evaluation of the effect of a human's body thermal plume on airflow pattern using CFD
Investigation of transport and distribution of particles emitted from a printer in a ventilated room in the presence of a manikin
Engineering the atmospheric water generator device
Digital twin creation of steam powerplant
Design and CFD modelling of the supersonic converging-diverging nozzle using MOC
Spray characteristics and drift potential evaluation of agricultural nozzles in a wind tunnel
Five years of hands-on industrial experience in steel production engineering and maritime inspection

PUBLICATION

Journal

M. Ansaripour, M. Abdolzadeh, Computational "modeling of particle transport and distribution emitted from a printer in a ventilated room with different ventilation configurations", Applied Thermal Engineering, Vol.103:920-933.

DOI:10.1016/j.applthermaleng.2016.04.137

Mehrzad Ansaripour, Reza Alidoost Dafsari, Seung-Hwa Yu, Yong Choi, and Jeekeun Lee; "Characteristics of a tip-vortex generated by a single rotor used in agricultural spraying drone", Experimental Thermal and Fluid Science, July 15, 2023, 110995
DOI: 10.1016/j.expthermflusci.2023.110995

Book

Co-author of "Introduction to Modeling of Engineering Systems by Modelica" (December 2014). Published by Hormozgan University Publication, ISBN: 9786007279267.

Conference-presentation

Mehrzad Ansaripour, Y.G.N. Ahmed, RA. Dafsari, S.H Yu, Y Choi, J Lee, Spray liquid sheet dynamic analysis in hollow cone agricultural nozzle, International Conference on Liquid Atomization and Spray Systems, 2024, Shanghai, China.
RA. Dafsari, MK Kasbi, Mehrzad Ansaripour, M Y. Hashim, J Kim, J Lee, Spray Structure in triple coaxial pre-filming air-blast nozzle due to droplet-swirl interaction and flare geometry, International Conference on Liquid Atomization and Spray Systems, 2024, Shanghai, China.
Mehrzad Ansaripour, Y.G.N. Ahmed, RA. Dafsari, CG Lee, Y Choi, J Lee Measurement of airborne drift from agricultural spray nozzles using a wind tunnel, International Commission of Agricultural Engineering, 2024, Jeju, Korea.
RA. Dafsari, MK Kasbi, Mehrzad Ansaripour, M Y. Hashim, J Kim, J Lee, Spray Structure in triple coaxial pre-filming air-blast nozzle due to droplet-swirl interaction and flare geometry, International Conference on Liquid Atomization and Spray Systems, 2024, Shanghai, China.
Mehrzad Ansaripour, Y.G.N. Ahmed, RA. Dafsari, S.H Yu, Y Choi, J Lee, Effect of liquid viscosity on the atomization characteristics of agriculture nozzle sprays, International ILASS-ASIA 2023, Jeju, Korea.
Mehrzad Ansaripour, S.H Yu, Y Choi, J Lee, Characteristics of Tip-Vortex Generated by A Single Rotor in High Reynolds Number Flow, KSME Annual Meeting 2023, Korea, Jeju.
RA. Dafsari, MK Kasbi, A. Charanandeh, Mehrzad Ansaripour, M Y. Hashim, J Kim, J Lee, On the droplet dynamics of pre-filming air-blast nozzle, International ILASS-ASIA 2023, Jeju, Korea.
Mehrzad Ansaripour, .G.N. Ahmed, RA. Dafsari, S.H Yu, Y Choi, J Lee, Impact of the liquid Viscosity on the spray characteristics in agricultural nozzles, KSME Annual Meeting 2023, Korea, Incheon.
RA. Dafsari, MK Kasbi, Mehrzad Ansaripour, M Y. Hashim, J Kim, J Lee, Effect of flare geometry on the multi-shear layer pre-filming airblast nozzle, KSME Annual Meeting 2023, Korea, Incheon.
RA. Dafsari, MK Kasbi, Mehrzad Ansaripour, J Kim, J Lee, Effect of mass flow rate distribution and split ratio on turbulent swirling flow of triple swirler pre-filming air blast nozzle, KSME Annual Meeting 2023, Korea, Incheon
Mehrzad Ansaripour, Y.G.N. Ahmed, S.H Yu, Y Choi, J Lee, A comparative study of the atomization mechanism of air induction nozzles and conventional agriculture nozzles, KSME Annual Meeting 2022, Korea, Incheon.
Mehrzad Ansaripour, M. Abdolzadeh, "Computational modelling of particle transport and distribution emitted from a printer and locating the safest position for occupant", ISME 2016, Yazd, Iran, 2016.

English Proficiency

IELTS: 7.5/9.0 | Reading (7.5), Listening (8.0), Writing (6.5), speaking (7.5)

Research Interest

- Multiphase flow

- Computational fluid and particle dynamics and numerical simulation

- Aerosol transport and deposition

-Biomedical Fluid Mechanics

- Environmental fluid mechanics

- Turbulent flow

- Aerodynamics

- Renewable energies

Technical Skills

Particle Image Velocimetry (PIV): Proficient in conducting PIV experiments for fluid flow analysis, including calibration, data acquisition, and post-processing using software such as PIVLAB, and DynamicStudio.
High-Speed Imaging: Skilled in capturing and analyzing high-speed video footage to study dynamic phenomena, such as fluid dynamics, liquid sheet break-up, or tip vortex visualization and analysis, using software like MATLAB and ImageJ.
Malvern Spraytec Sizer: Experienced in operating the Malvern Spraytec sizer for particle size analysis, spray characterization, and droplet size measurement, including instrument setup, sample preparation, and result interpretation.

Experimental Design and Setup:

Demonstrated expertise in designing and modifying experimental setups for various research projects, optimizing parameters for accurate data acquisition and analysis.
Proficient in conceptualizing experimental designs, including selecting appropriate sensors, instruments, and components to meet specific research objectives.
Skilled in utilizing CAD software (e.g., SolidWorks, AutoCAD) to create detailed technical drawings and models for custom experimental apparatus.
Experience in integrating and troubleshooting complex instrumentation systems, ensuring proper functionality and alignment.
Proven ability to collaborate with interdisciplinary teams to identify requirements, propose modifications, and implement enhancements to experimental setups.
Strong knowledge of safety protocols and best practices in laboratory environments, ensuring compliance with relevant regulations.

Computer Skills

Excellent knowledge of the following computer coding languages:

FORTRAN, MATLAB. Also familiar with: C++

Excellent knowledge of the following programs:

Fluent, Tecplot, SolidWorks, EES, Microsoft Office

Simulation Softwares, Proficient in:

SystemModeler*

*(Complete tools for modeling and simulation of multi-domain physical and complex systems with MODELICA language)

Related Term Research-projects

- Air-condition and piping, Design and calculation of air conditioning and piping for residential houses, Dr Y.Bakhshan. Fall 2009.
- Finite Difference simulation, CFD code in Finite Difference Method to Simulation 2D Conduction in rectangular plates, Heat transfer (I), H.Ansari Nasab. Fall 2010.
- Modeling Jeffery-Hamel flow with commercial CFD code ANSYS FLUENT. Advanced Fluid Mechanics, Dr M. Abdolzadeh, fall 2012
- Finite Volume Simulation of 2-D Fluids, CFD code in Finite Volume method to simulate 2D Fluid in cavity, Computational Fluid Dynamic (I), Dr K. Lari. Fall 2013.
- Modeling particle deposition and distribution in a chamber with ANSYS FLUENT, Fluid Mechanics of Aerosols, Dr M. Abdolzadeh. Fall 2013.

Industrial/Work Experience

• Digital Twin project: Modeling of the Hormozgan power plant, Modeling flow and pressure drop in

DYMOLA, Dr. S.Niazi, and H. Ansari Nasab. Spring - summer 2010.

• Internship in Bandar Abbas oil Refinery, summer 2010.

• Internship at the Technical office of HormozgaRegional Electric Company, summer 2011.

• Design Modeling simulation atmospheric water generator device in ACECR* from spring 2016.

• Mechanical engineer supervisor, South Kave Steel (SWRO Plant Building, installation and Commissioning)- SOMIC (Consultant of infrastructure Projects of SKS Co.) 2017.

• Mechanical Engineer at Port and Maritime Organization, since 2018.

* Academic Center for Education, Culture and Research.

Teaching Experience

Kerman Graduate University of Advanced Technology

Teacher Assistant in "Fundamentals of Thermo-Hydrodynamic" course.

Demonstrator/Tutoring, Hormozgan University

Training team members in the digital twin project on using Modelica tools during the project.

Research-projects

Tip Vortex dynamics and Visualization
A better understanding of downwash flow is required to increase the efficiency of unmanned aerial vehicle sprayers. The tip vortex rolled up by the rotor blade tip rotating at high speed produces a complex induced velocity field, which has an essential impact on the downwash flow in the wake of the rotor. Usually, a symmetrical experimental setup with a central rotor support perpendicular to the rotation plane is used in studies on rotating blade wake and vortices, potentially leading to differences in observed wake and vortices in real situations. In reality, the rotor is typically supported by a parallel arm extending below the rotor in the rotation plane. It is crucial to consider these differences for accurate results in analyzing blade rotation. The behavior of the tip vortices, dynamic characteristics, and velocity field of the rotor wake in agricultural drone single-rotor downwash flow was experimentally investigated using particle image velocimetry (PIV) combined with high-speed camera imaging. The dynamics of blade tip vortices at different wake ages and rotational speeds of the rotor, 1000–3000 rpm, were measured and analyzed. The results indicate that in the early stages of a vortex's life, tip vortices generated by rotors do not have an axisymmetric structure, and the swirl velocity in the core decreases logarithmically as the wake age increases. Vortex models were validated by examining the swirl velocity structure of the vortex tip. Vortices within the vortex core exhibit a comparable self-similar velocity profile to the Iverson model's laminar profile, despite the transition flow outside the vortex core. With these measurements, the behavior of vortices in the rotor’s wake could be described with generalized semi-empirical models.

Particle emission, transfer, and deposition from laser printers

In this research, computational modeling of particle transport and distribution emitted from a Laserjet printer was carried out in a ventilated room. A seated manikin was integrated into the study room, and the manikin was evaluated in two cases: heated and unheated. The printer was located on different sides of the manikin and the particle concentrations in the breathing zone of the manikin due to the printer’s particles were evaluated in all the ventilation configurations. The averaged particle concentration in the breathing zone of the manikin was calculated and validated with the experimental and numerical data available in the literature. The results of the present study showed that in the case of the heated manikin, the particle concentration due to the printer pollutants is significant in the breathing zone of the manikin.

Unheated manikin

In the this research, computational modeling of particle transport and distribution emitted from a Laserjet printer was carried out in a ventilated room. A seated manikin was integrated into the study room and the manikin was evaluated in two cases: heated and unheated. The printer was located on different sides of the manikin and the particle concentrations in the breathing zone of the manikin due to the printer’s particles were evaluated in all the ventilation configurations. The averaged particle concentration in the breathing zone of the manikin was calculated and validated with the experimental and numerical data available in the literature. The results of the present study showed that in case of the heated manikin, the particle concentration due to the printer pollutants is significant in the breathing zone of the manikin.

Unheated manikin

Heated manikin

Nozzle design and simulation

The family of supersonic gas nozzles are characterized by a changing converging-diverging shape of various ratios of radial and axial coordinates.Converging-diverging nozzle, is perhaps the most important and basic piece of engineering hardware associated with propulsion and the high speed flow of gases. Gas flows through the nozzle from a region of high pressure (usually referred to as the chamber) to one of low pressure (referred to as the ambient or tank). The method of characteristics provides a technique for properly designing the contour of a supersonic nozzle for shock free, isentropic flow, taking into account the multidimensional flow inside the duct. FLUENT was used to independently check the accuracy of the program developed for designing the contour wall. The CFD program was used to simulate the flow and produce dimensional entropy change and Mach contour plots to evaluate if the flow was shock free and the desired exit Mach was reached.

It can be seen that the large majority of the fluid domain demonstrates constant entropy signifying that the isentropic flow assumption is valid. The exit Mach number is checked by the Mach contours of the simulation.

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