The Role
Perform high-fidelity CFD simulations of scramjet and ramjet combustion systems under supersonic and hypersonic conditions. Model chemical kinetics, turbulence-chemistry interactions, shock-combustion phenomena, heat transfer, and thermochemical effects. Develop meshes and combustion mechanisms, conduct parametric design studies, validate results against testing, troubleshoot convergence, and communicate technical findings through reports and presentations. Support propulsion design optimization, thermal management, customer interactions, and project teams.
Summary Generated by Built In
Job Summary
Expertise in CFD and Scramjet Combustion. The ideal candidate will have a
deep understanding of Combustion concepts, turbulence-chemistry
interaction models, chemistry solvers. Reaction Kinetics modeling using
Chemkin and possess excellent problem-solving skills to deliver high-qualitysimulations for various projects. Function as a solution specialist in the field of
Computational Fluid Dynamics using simulation tools such as ANSYS FLUENT,
Chemkin or Star CCM+.
Key Responsibilities
- Perform high-fidelity CFD simulations of high-speed reactive flows in
scramjet and ramjet engines using tools such as ANSYS Fluent and ANSYS
Chemkin, capturing coupled effects of fluid dynamics, combustion, and
heat transfer.
- Model combustion kinetics and fuel–air mixing under supersonic and
hypersonic flow conditions, incorporating finite-rate chemistry, turbulence
chemistry interaction, and high-temperature gas effects.
- Develop and validate detailed or reduced chemical kinetic mechanisms for
hydrogen, hydrocarbon, or multi-species fuel systems to predict ignition
delay, flame structure, and combustion efficiency accurately.
- Simulate high-enthalpy flow environments, accounting for thermochemical
nonequilibrium, dissociation, recombination, and radiation effects relevant
to hypersonic combustion systems.
- Analyze shock–combustion interactions and shock-induced ignition
phenomena, studying flame stabilization, pressure rise, and thermal
choking effects within scramjet isolators and combustors.
- Conduct parametric and design studies to optimize fuel injection strategies,
mixing enhancement techniques, and combustor geometries for improved
efficiency and reduced total temperature and wall heat loads.
- Generate high-quality meshes and ensure grid independence for reactive
flow regions, capturing boundary layers, shear layers, and flame fronts accurately in complex combustor geometries.
- Apply and compare turbulence and combustion models (RANS, LES, DES,
Flamelet, PDF, or Finite Rate/Eddy Dissipation models) to ensure robust and
physically accurate prediction of reacting flow fields.
- Post-process and interpret simulation results to extract key performance
parameters such as combustion efficiency, heat release rate, species
distribution, total pressure loss, and thermal loading, supporting design
decision-making.
- Document and present technical findings through comprehensive reports
and visualization of flame structures, flow fields, and temperature contours,
providing recommendations for combust or performance optimization and
system reliability improvement. Troubleshoot and resolve design issues
relating to convergence issues.
- Document CFD analyses, simulation methodology, and results in
professional engineering reports and presentations.
- Support testing team when needed, correlate simulation predictions with
actual measurements or lab tests.
- Interface with customers and project teams to understand requirements,
communicate progress, and propose design modifications.
- Stay abreast of advancements in simulation methodologies, electronics
cooling, and thermal management technologies
Requirements
Required Skills:
- Simulate high-speed reactive flows in scramjet engines
using ANSYS Fluent and ANSYS Chemkin.
- Model combustion kinetics and fuel-air mixing under
supersonic/hypersonic conditions.
- Perform parametric studies to improve combustion
efficiency and reduce thermal loads.
- Knowledge of high-enthalpy flow physics and shock
induced combustion phenomena.
- Knowledge of Scramjet Combustion Modelling
mandatory
- Strong fundamentals in CFD with Ansys Chemkin
knowledge- Preferred
- Aerospace (or) Mechanical with strong knowledge on
Combustion simulations
- Knowledge of gas dynamics and shock interactions
mandatory
- Knowledge of external aerodynamics– mandatory
- Basic knowledge of MATLAB for post-processing
Preferred Skills:
- Strong foundation in combustion physics and gas
dynamics, including ignition, flame stabilization, and high
enthalpy reacting flows.
- Proficiency in CFD tools such as ANSYS Fluent, ANSYS
Chemkin, STAR-CCM+, or OpenFOAM for simulating
reactive and compressible flows.
- Experience with combustion models — finite-rate
chemistry, Eddy Dissipation, Flamelet, or PDF approaches
—and selection based on flow regime.
- Knowledge of turbulence–chemistry interaction using
RANS, LES, or DES methods for accurate prediction of
unsteady reacting flows
- Skill in developing and reducing chemical kinetic
mechanisms using Chemkin, Cantera, or Reaction
Workbench for hydrogen or hydrocarbon fuels.
- Ability to analyze shock-induced combustion and
supersonic/Hypersonic reacting flows, including scramjet
and ramjet applications.
- Sound background in Combustion, Computational Fluid
Dynamics [CFD], Aerodynamics, & Aerothermodynamics,
Scramjet Engine CFD Modelling, Propulsion, Liquid
Propellant Rocket Engine Physics.
Skills Required
- Experience simulating high-speed reactive flows in scramjet engines using ANSYS Fluent and ANSYS Chemkin
- Experience modeling combustion kinetics and fuel-air mixing under supersonic or hypersonic conditions
- Experience performing parametric studies to improve combustion efficiency and reduce thermal loads
- Knowledge of high-enthalpy flow physics and shock-induced combustion phenomena
- Knowledge of scramjet combustion modeling
- Strong fundamentals in Computational Fluid Dynamics and ANSYS Chemkin
- Aerospace or Mechanical engineering background with strong combustion simulation knowledge
- Knowledge of gas dynamics and shock interactions
- Knowledge of external aerodynamics
- Basic MATLAB knowledge for post-processing
- Strong foundation in combustion physics, gas dynamics, ignition, flame stabilization, and high-enthalpy reacting flows
- Proficiency with ANSYS Fluent, ANSYS Chemkin, STAR-CCM+, or OpenFOAM
- Experience with finite-rate chemistry, Eddy Dissipation, Flamelet, or PDF combustion models
- Knowledge of turbulence-chemistry interaction using RANS, LES, or DES
- Experience developing or reducing chemical kinetic mechanisms using Chemkin, Cantera, or Reaction Workbench
- Experience analyzing shock-induced combustion and supersonic or hypersonic reacting flows
- Background in combustion, CFD, aerodynamics, aerothermodynamics, scramjet engine CFD modeling, propulsion, or liquid propellant rocket engine physics
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The Company
What We Do
CADFEM India Pvt Ltd is the Indian operation of CADFEM, a simulation and digital-engineering provider. The company supplies engineering simulation software and hardware, supports Ansys users, and delivers consulting, implementation, engineering, workflow-automation, and training services. Its solutions help organizations apply numerical simulation in product development and research, with expertise spanning many industries and applications, including aerospace and defense. The India role specifically serves government aerospace and defense customers.
