Jesus Pastran
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Engineering Manager - Fluids @ Simutech Group | PhD in Mechanical Engineering - CFD Senior Application Engineering
Ottawa, Ontario, Canada
Résumé
Jobs
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Engineering Manager - FluidsSimuTech GroupJan 2026 - Current (8 months)As an Engineering Manager (CFD), I have 7 direct reports and oversee engineering for the Central and East regions for both the US and Canada. Responsibilities: 1. Provide technical leadership to the CFD engineering team, guiding modeling approaches, simulation methodologies, and best practices. 2. Lead the execution of CFD and multiphysics engineering services, ensuring technical accuracy, robustness, and compliance with CFD best practices. 3. Oversee technical project planning, workload distribution, and engineering resource allocation. 4. Act as a technical interface with clients, translating engineering requirements into simulation solutions. 5. Support ANSYS software sales through technical pre-sales activities, solution demonstr- Technical Manager - Computational Fluid Dynamics (CFD) EngineeringOzen Engineering Inc Ansys Elite Channel PartnerJan 2023 - Jan 2026 (3 years 1 month)• Led a high-performing engineering team at Ozen Engineering, Inc., managing workloads across pre-sales, training, support, and consulting. • Enhanced customer satisfaction by driving technical support excellence and overseeing ticket resolution processes. • Collaborated with engineering leads to optimize resource allocation, improving project delivery timelines and quality. • Built and reviewed proposals for technical accuracy and competitive pricing, ensuring high standards before submission.
- Senior CFD Application Engineering professionalOzen Engineering Inc Ansys Elite Channel PartnerAug 2021 - Jan 2026 (4 years 6 months)• Developed customized engineering projects using advanced computational modeling techniques, enhancing client satisfaction. • Provided expert post-sale technical support for ANSYS tools, improving troubleshooting efficiency. • Created impactful proofs of concept that showcased ANSYS capabilities, driving customer engagement and retention. • Built technical proposals and quotations for CFD engineering projects.
- Computational Fluid Dynamics Engineering - DirectorLarquin sasFeb 2020 - Dec 2022 (2 years 11 months)
- Project Engineer IIIYVMay 2019 - Dec 2019 (8 months)• Conducted advanced computational fluid dynamics analysis to enhance transportation facilities in oil and gas fields. • Collaborated with cross-functional teams to ensure timely and accurate project analysis. • Developed CFD models for oil-water separation utilizing micro-bubble injection, improving efficiency in separation processes.
- SComputational Fluid Dynamics - Application Engineering professionalSingularity Engineering LLCFeb 2019 - Aug 2021 (2 years 7 months)• Led the CFD area at Singularity Engineering LLC, utilizing ANSYS Fluent, CFX, and Icepack to deliver precise simulations. • Developed tailored engineering projects, ensuring alignment with customer objectives through advanced computational modeling. • Provided post-sale technical support, enhancing customer satisfaction by resolving issues and training engineers on ANSYS tools. • Created impactful proofs of concept that showcased ANSYS capabilities, driving customer engagement and retention.
- Assistant ProfessorUniversidad Santo TómasSep 2018 - Dec 2020 (2 years 4 months)In my role at Universidad Santo Tomás, I specialized in teaching and researching Computational Fluid Dynamics and related fields. I emphasized the practical application of Ansys CFD tools, enabling students to engage with industry-relevant projects. My research efforts led to advancements in fluid mechanics, fostering a collaborative learning environment that bridged academia and industry.
- Project ManagerEnergia Proactiva sasFeb 2018 - Aug 2018 (7 months)• Managed cogeneration and water treatment plant projects, ensuring adherence to budget and timelines. • Led a cross-functional team of five engineers and eight technicians to optimize project execution. • Implemented CFD techniques to enhance engineering solutions, driving innovation in project design.
- Research Assistant ProfessorUniversidad Nacional de ColombiaAug 2014 - Apr 2017 (2 years 9 months)• Developed and taught courses on mathematical modeling in mechanical engineering for undergraduate students. • Guided students in solving engineering problems through numerical methods using Scilab and Fortran. • Fostered a collaborative learning environment that enhanced student engagement and understanding of complex concepts.
- Professor and project directorUniversidad Nacional Experimental del TáchiraApr 2011 - Dec 2013 (2 years 9 months)• Directed engineering projects focused on Computational Fluid Dynamics and mechanical design, enhancing industry applications. • Developed and delivered comprehensive teaching materials for Thermodynamics, Fluid Mechanics, and Turbomachinery courses. • Supervised student research, fostering innovation and academic growth within the engineering department.
- Research StaffUniversidad Nacional Experimental del TáchiraSep 2007 - Apr 2011 (3 years 8 months)• Assessed students' coursework in Thermodynamics and Fluid Mechanics, providing constructive feedback to enhance learning outcomes. • Conducted personal research projects, contributing to the institution's growing research profile and academic reputation. • Supervised undergraduate research activities, fostering a collaborative environment that encouraged innovative thinking. • Delivered engaging lectures in Thermodynamics, enhancing students' understanding and application of complex concepts.
- SIntershipsSmurfitKappa VenezuelaOct 2006 - Feb 2007 (5 months)Internships focused on developing and scheduling preventive maintenance programs.
Education
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- Doctor of Philosophy (PhD, Mechanical EngineeringUniversidad Nacional de ColombiaJan 2014 - Jan 2018 (4 years 1 month)Mathematical modelling of engineering processes
- Master's degree, Industrial MaintenanceUniversidad Nacional Experimental del TáchiraJan 2008 - Jan 2013 (5 years 1 month)
- Engineer, Mechanical EngineeringUniversidad Nacional Experimental del TáchiraJan 2001 - Jan 2007 (6 years 1 month)
Projects (professional or personal)
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- VValuation of propertyTo estimate values for sale or mortgage, for properties, using statistical techniques and methods.
Awards
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- Second place in the 44th promotion of mechanical engineersUniversidad Nacional Experimental del Táchira
- Teaching Assistant ScholarshipUniversidad Nacional de Colombia
Publications
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- ATurbulence modification in a turbulent particle laden channel flow with geometric perturbations in one wallAPS DFD NovExperiments and numerical simulations of particle-laden flows have shown that wall-roughness level in a turbulent channel flow affects the statistics of both phases. It seems then that induction of geometric perturbations on the channel walls would allow modifying and controlling the particles distribution aiming to enhance processes of heat transfer and particle transport. In this work, Large Eddy Simulations were used to evaluate the effect of two different geometric arrangements (protuberances as well as cavity disturbances) on the particles distribution and the turbulent behavior of a particle laden channel flow. The goal of this work is to evaluate the possibility of controlling the particles distribution and the modification of turbul
- FInfluence of particle mass fraction over the turbulent behaviour of an incompressible particle-laden flowFluids OctThe effect of spherical solid particles in incompressible turbulent flow was studied through the particle mass fraction (PMF, 𝜙𝑚), which measures the particle-to-fluid mass ratio. While solid particles are known to alter turbulence, this work focuses on how varying 𝜙𝑚 influences flow behavior, including turbulence statistics, skin-friction coefficient, and overall dynamics. A particle-laden turbulent channel flow with solid particles was simulated at friction Reynolds numbers 𝑅𝑒𝜏 = 180, 365, and 950, using a fixed particle volume fraction 𝜙𝑣 = 10⁻³. This value permitted two-way coupling between particles and fluid. Three PMF cases were examined: 𝜙𝑚 ≈ 1, 2.96, and 12.4. Analysis of mean velocity profiles, velocity fluctuations, a
- AEffect of synthetic roughness on a turbulent channel flowAPS Division of Fluid Dynamics Fall abstract KP NovA turbulent channel flow featuring single step synthetic roughness at the bottom wall was examined using numerical experiments. An incompressible flow solver using LES as turbulence model was employed to study some turbulence variables as well as Q-criterion coherent structures. Roughness was attained by inserting a small step, stretching along the channel spanwise direction in the bottom wall. Three different values for the step width were used. Correlations between the steps width and skin-friction coefficients are calculated. Coherent structures using the Q-Criterion are constructed using different threshold values. By examining the evolution of the Q-structures, the effect of the perturbation is characterized in the near-wall region. Co
- ATemporal characterization of turbulence and coherent structures in a recirculating flowAPS Division of Fluid Dynamics Fall abstract E NovAnalysis of the temporal behavior of a recirculating flow is performed by numerical experiments on a lid-driven cavity setup. Simulations at two Reynolds numbers, based on the cavity depth (Re=3200 and Re=12000), were computed for an incompressible turbulent flow using LES. Good agreement was observed with results reported for velocity profiles along vertical and horizontal planes, but discrepancies against experimental data were found for the fluctuating velocity profiles. By using long-term simulations a complex quasi-periodic behaviour is observed and a set of dominant frequencies identified. Such behaviour is also identified by examining the temporal evolution of the TKE production and viscous dissipation terms. Coherent structures base
- AEffect of stationary and dynamic transverse squared bars over the turbulent behavior in a channel flowAPS Division of Fluid Dynamics Fall abstract L NovTurbulent flows over rough surfaces are present in different industrial scenarios. Generally, roughness is used to modify the boundary layer behavior, in order to improve heat transfer rates and mixing processes, which is usually accompanied by an increase of skin-friction drag. In the present work two different techniques for modification of the turbulent boundary layer were explored: first, the use of an arrangement of transverse squared bars (synthetic roughness); second, the use of an oscillating movement of the squared bars. In both cases the goal was to assess the increase or decrease of the skin-friction drag and the changes in the turbulent behavior of the flow. Large Eddy Simulations were carried out in order to study a fully devel
- COn the prediction capabilities of two SGS models for large-eddy simulations of turbulent incompressible wall-bounded floCogent Engineering OctA comprehensive evaluation of the prediction capabilities of two Sub-Grid-Scale (SGS) models, for Large-Eddy Simulations (LES) of incompressible turbulent flows, is performed by studying two cases of flows through wall-bounded domains: a standard smooth-wall channel and a channel featuring fixed geometrical perturbations in its bottom wall. The SGS models were computationally implemented in OpenFOAM’s framework and numerical results have been evaluated using available DNS data of turbulent flow in the standard channel flow case at four different friction Reynolds numbers, i.e. Reτ =180, 395, 550 and 950. A number of well-known features were employed to judge about the reliability of the selected SGS models in the standard channel case, incl
- IStatistics and turbulent structures characterization in a cavity flow / Caracterización de la estadísticas y estructurasInternational Mechanical and Mechatronics Engineering Congress CIMM May
- APerformance characterization of a new model for a cyclone separator of particles using computational fluid dynamicsApplied Sciences JunIn the present study, through Computational Fluid Dynamics techniques, the performance characterization of a new Stairmand-type separator cyclone was carried out using the commercial software ANSYS Fluent. Four models for the geometrical cyclone separator were built, namely model A as per the dimensions reported in the literature and models B, C, and D by applying square and circular shape cavities as a passive flow control technique on the surface of its cylindrical section. The Navier-Stokes equations with the RSM turbulence model were formulated to solve the continuous phase of the cyclone separator and, the Lagrangian approach was adopted to track the solid particles with one way-coupling. The proposed model’s separation efficiency and
- CDETERMINATION OF LIFE USEFUL OF A GLOBE VALVE USING TECHNIQUES OF COMPUTATIONAL FLUID DYNAMICSCIMENICS MarComputational Fluids Dynamics (CFD) techniques were used in order to simulate the process of erosion over a globe valve due to the impact of sand. The main goal of this research was to determine the useful life of the valve before it fails due to sealing problems caused by erosion. The computational results were validate against experimental results.
- IAnalysis and Discussion of Two-Way Coupling Effects in Particle-Laden Turbulent Channel FlowIngeniería e Investigación FebThis paper studies the turbulence modification caused by the presence of solid particles in fully developed channel flow by means of the point particle Direct Numerical Simulations (DNS) approach. Inertial particles much smaller than the smallest vortical flow structures are considered, maintaining a volume fraction of the order 10-4, where inter-particle collisions are rare and have nearly no influence on flow development. To avoid concurrent effects that could mask the analysis of fluid-turbulence interaction, gravity is not included in the study, and particle-smooth wall collisions are modelled as ideal reflections. The alteration of fluid turbulence dynamics by the particles is illustrated and discussed, providing an overview of the flu