MARIMUTHU Sengottaian
coimbatore
Summary
- Experienced Mechanical Engineer with over 11 years of expertise in CFD and FEA using ANSYS Fluent, CFX, and ANSYS Workbench Structural. Skilled in managing the entire simulation process, including geometry preparation, meshing, solving, and post-processing.
- Extensive experience in fluid flow analysis, fluid-structure interaction (FSI), porous media, conjugate heat transfer and thermal analysis, along with static and dynamic structural analysis, including vibration, shock, and fatigue under a wide range of operating conditions.
Overview
14
14
years of professional experience
1
1
Certification
Work History
Senior Engineer
Circor Flow Technologies Pvt Ltd.
Coimbatore
12.2021 - Current
- Executed comprehensive CFD analyses, including pressure drop, cavitation, flow losses, multiphase flow modeling, and droop curve prediction for hydrogen/helium applications, to optimize valve performance and support New Product Development (NPD).
- Conducted flow path refinement, thermal and conjugate heat transfer (CHT) evaluations, and transient flow simulations to enhance valve efficiency, reliability, and operational lifespan.
- Accurately predicted valve flow coefficients (Cv/Kv) by EN standards, validating simulation results against experimental data.
- Assessed flow-induced forces and moments to verify structural integrity and inform precise actuator specification and sizing.
- Conducted detailed linear and non-linear structural analyses to rigorously evaluate the mechanical integrity and performance of components under static, dynamic, and complex loading conditions.
- Performed comprehensive fatigue, shock, and vibration analyses in strict accordance with MIL-STD standards, ensuring component durability, reliability, and compliance with aerospace and defense certification requirements.
- Collaborated with cross-functional teams to integrate structural insights into design improvements, and validate component resilience under operational stressors.
- Designed and deployed advanced CFD and FEA models to simulate the behavior of valves, regulators, filters, pressure-reducing stations (PRS), and breakaway devices for aerospace and defense applications.
Senior Engineer
Advanced Engineering Services
Chennai
07.2018 - 12.2021
- Responsible for conducting structural Finite Element Analysis (FEA) and Computational Fluid Dynamics (CFD) simulations using ANSYS Workbench to support design validation and performance optimization.
- Performed internal fluid flow and transient thermal analysis of power pack assemblies using Flo-EFD to study fluid behavior and temperature distribution.
- Performed CFD analysis using ANSYS Fluent to evaluate fluid properties, streamline patterns, and optimize flow rate and distribution in boiler sub-systems and sill model designs.
- Conducted stress analysis for snap-fit on nut runners used in assembly lines to ensure mechanical integrity and reliable operation.
- Executed detailed structural analysis to evaluate strength, material behavior, cone angle optimization, material selection, and contact conditions in structural joints for medical devices, doors, and windows, in compliance with ASME standards.
- Validated simulation results through comparison with physical test data and manual hand calculations to ensure accuracy and reliability.
- Developed solutions to complex engineering challenges by analyzing simulation data, providing technical interpretations and recommendations, and contributing to detailed project documentation.
Senior Design Engineer
Larsen &Toubro Constructions
Chennai
06.2014 - 12.2016
- Developed mathematical models in ANSYS, overseeing the full simulation workflow, including pre-processing, meshing, solving, and post-processing, to support design validation and optimization.
- Analyzed hydraulic phenomena—including free surface behavior, subsurface vortices, and vortex generation—to assess pump performance and propose optimized sump designs compliant with Hydraulic Institute Standards (HIS).
- Conducted CFD simulations with User-Defined Functions (UDFs) to evaluate thermal mixing and optimize sparger design and placement in hot water basins for cooling towers.
- Performed CFD studies to improve fluid ventilation and developed HVAC design basis drawings, ensuring efficient airflow and thermal management.
- Designed and analyzed a 2,300 NB flange using combined CFD and FEA methods, performing fluid-structure interaction (FSI) to transfer thermal and pressure loads for structural optimization.
- Enhanced weldability and reduced material usage by optimizing a Wye piece model, qualifying it for high-pressure conditions beyond standard design limits.
- Executed seismic analysis on mechanical components, such as valves, to validate structural integrity under dynamic loading conditions.
Project Associate
Indian Institute of Technology (IITM)
Chennai
12.2011 - 06.2014
- Created 3D models, performed meshing, and conducted CFD/FEA simulations using ANSYS Workbench, including comprehensive post-processing and result interpretation.
- Performed thermal stress analysis of multiphase steam/water mixing in high-pressure bypass valves using CFD and FEA, accounting for thermal mixing, conjugate heat transfer, and material stress behavior under multiphase flow conditions.
- Analyzed and enhanced the performance of 12-hub KKK (single-stage) and TLT turbine (multi-stage) fan blades, optimizing aerodynamic efficiency and mechanical strength.
- Correlate simulation results with empirical data and physical test results to validate models and ensure the accuracy of performance predictions.
Education
Masters in Artificial Intelligence - Artificial Intelligence
SRM Institute of Science And Technology
Chennai06-2025
Bachelor of Degree - Mechanical Engineering
05.2011
Diploma in Mechanical Engineering -
04.2008
Skills
- Computational Fluid Dynamics (CFD) — ANSYS Fluent, Flo-EFD
- Finite Element Analysis (FEA) — ANSYS Workbench
- Artificial intelligence (AI), machine learning, deep learning, and data analysis
- Python — scripting for simulation automation and data processing
Certification
- AutoCAD Certificate supervisor development training program - L&T CTEA
- Project management training program at L&T- Chennai.
Disclaimer
I do hereby declare that the particulars of information and facts stated herein above are true, correct, and complete to the best of my knowledge and belief.
Languages
- English, Fluent
- Tamil, Native
Personal Information
- Passport Number: U5998329
- Nationality: Indian
Affiliations
- "EMERGENCY VEHICLE DETECTION SYSTEM USING HYBRID YOLOV 11 WITH SWIN TRANSFORMER MODEL," S.Marimuthu, B.Sivakumar, IEEE ICCRTEE, 2025.
Timeline
Senior Engineer
Circor Flow Technologies Pvt Ltd.
12.2021 - Current
Senior Engineer
Advanced Engineering Services
07.2018 - 12.2021
Senior Design Engineer
Larsen &Toubro Constructions
06.2014 - 12.2016
Project Associate
Indian Institute of Technology (IITM)
12.2011 - 06.2014
Masters in Artificial Intelligence - Artificial Intelligence
SRM Institute of Science And Technology
Bachelor of Degree - Mechanical Engineering
Diploma in Mechanical Engineering -
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