1D Simulation

Alten Group; Chennai District; On-site; INR 900,000 - 1,300,000; Full time

Job summary

Alten Group in Chennai, India seeks a powertrain specialist to develop and maintain high-fidelity 1D thermo-hydraulic models using GT-SUITE and related tools. You will optimize parasitic losses, collaborate with test and CFD teams, and apply DOE and optimization methods to size components and improve vehicle range.

Strong background in fluid mechanics, thermodynamics, and programming with MATLAB/Simulink or Python is required.

Qualifications

• Experience in 1D thermo-hydraulic modeling for powertrain systems.
• Hands-on with GT-SUITE and related GT tools.
• Strong understanding of fluid mechanics, thermodynamics and heat transfer.
• Ability to read 3D CAD data to extract circuit dimensions.

Responsibilities

• Develop and maintain high-fidelity 1D models to predict powertrain performance.
• Predict parasitic power consumption and optimize for range.
• Collaborate with test, dyno, and CFD teams to validate models.
• Apply DOE and optimization to sizing components.

Skills

1D thermo-hydraulic modeling

Parasitic loss optimization

DOE & optimization

Thermodynamics & fluid mechanics

Tools

GT-SUITE

GT-ISE

Flow/Cool/Hydraulics

MATLAB/Simulink

Python

CATIA

ANSA

Star-CCM+

Ansys Fluent

modeFRONTIER

HEEDS

GT-POST

Job description

• Develop and maintain high-fidelity 1D thermo-hydraulic models using GT-SUITE (GT-ISE, Flow/Cool/Hydraulics) for powertrain system
• Predict and optimize parasitic power consumption (hydraulic pump power, churning/windage losses, drag torque) to maximize overall vehicle range and efficiency.
• In-depth understanding of fluid mechanics, hydraulics, multiphase flow principles, thermodynamics, and heat transfer.
• Demonstrated background in modeling powertrain lubrication circuits, hydraulic valve bodies, or e-motor cooling circuits.
• Experience with fluid properties, low-viscosity dielectric fluids/transmission oils, oil aeration, and non-Newtonian behavior under shear/thermal stress.
• Proficiency with MATLAB/Simulink or Python for data processing, scripting, and co-simulation.
• Familiarity with reading and interpreting 3D CAD models in CATIA/ANSA to extract physical circuit dimensions, line lengths, and volumes.
• Partner closely with physical test, dyno, and rig teams to specify instrumentation (pressure transducers, flow meters, thermocouples) and calibrate 1D simulation models against empirical data.
• Collaborate with 3D CFD engineers (e.g., Star-CCM+, Ansys Fluent) to ingest boundary conditions, flow coefficients, and heat transfer coefficients into 1D lumped-parameter networks.
• Leverage Design of Experiments (DOE) and optimization toolsets (e.g., modeFRONTIER, HEEDS, GT-POST optimization) to determine optimal orifice sizes, line diameters, and pump sizing.