Simulation Engineer - CFD (Aerodynamic )

Cadfem; Hyderabad; On-site; INR 750,000 - 1,200,000; Full time

Job summary

Cadfem Hyderabad is seeking a Simulation Engineer - CFD to advance aerodynamic analyses across subsonic to hypersonic regimes. You will use CFD tools to evaluate external airframes and internal duct flows, delivering high-fidelity predictions for design optimization.

The ideal candidate brings deep gas dynamics knowledge, turbulence modeling, meshing expertise, and robust post-processing to extract Cp, Cl, Cd, and Cm for informed decisions. Collaboration with multidisciplinary teams is expected.

Qualifications

• Experience performing aerodynamic simulations across subsonic to hypersonic regimes.
• Strong knowledge of gas dynamics and shock interactions.
• Proficiency with ANSYS Fluent, STAR-CCM+, or similar CFD tools.
• Experience with 6DOF dynamics and overset mesh is desirable.
• Familiarity with boundary layer, y+ control, and mesh generation.

Responsibilities

• Perform aerodynamic simulations across subsonic to hypersonic regimes.
• Analyze shock waves, expansion waves, and shock–boundary layer interactions.
• Set up CFD models for external and internal flows with appropriate BCs.
• Apply turbulence models and justify selection per flow regime.
• Generate high-quality meshes with near-wall resolution.
• Conduct 6DOF dynamic simulations with dynamic/overset meshes.
• Post-process results to extract Cl, Cd, Cm and Cp plots.
• Collaborate with multidisciplinary teams for coupled simulations.
• Automate workflows using Python or scripting.
• Document findings in technical reports and design recommendations.

Skills

CFD expertise

External aero

Shock interactions

Gas dynamics

Turbulence modeling

6DOF dynamics

Python scripting

Post-processing

Data visualization

Education

Bachelor's in Aerospace/Mechanical

Tools

ANSYS Fluent

STAR-CCM+

ANSYS CFX

Chemkin

Python

MATLAB

Job description

Simulation Engineer - CFD (Aerodynamic )

Expertise in CFD and External & Internal Aero (Subsonic to HypersonicRegime). The ideal candidate will have a deep understanding of gasdynamics and shock interactions, aerodynamics, and possess excellentproblem solving skills to deliver high-quality simulations for variousprojects. Function as a solution specialist in the field of ComputationalFluid Dynamics using simulation tools such as ANSYS FLUENT, Chemkin orStar CCM+, ANSYS CFX.

Key Responsibilities

• Perform aerodynamic simulations across subsonic, transonic,supersonic, and hypersonic regimes using CFD tools (e.g., Ansys Fluent)to evaluate external airframe and internal duct/propulsion flowperformance.
• Analyze complex flow phenomena such as shock formation, expansionwaves, separation, and Shockwave–Boundary Layer Interaction, ensuringaccurate prediction of pressure, temperature, and heat flux distributions.
• Set up and execute CFD models for external flows (wings, fuselage,control surfaces) and internal flows (intakes, nozzles, ducts), applyingappropriate boundary conditions, compressibility effects, and gasdynamic principles.
• Apply advanced turbulence models — RANS, LES, DES, or hybridmethods — and justifytheir selection based on flow regime, Reynoldsnumber,and accuracy requirements.
• Generate high-quality meshes for complex geometries using structured,unstructured, or hybrid approaches, ensuring proper near-wallresolution (y⁺ control) and grid independence for reliable aerodynamicpredictions.
• Conduct 6DOF dynamic simulations using dynamic and overset meshesto study vehicle motion, stability, and control behaviour during free-flightor moving-bodyscenarios.
• Post-process and analyse CFD results, extracting aerodynamiccoefficients (Cl, Cd, Cm), flow visualization plots (Mach contours, Cpdistributions), and force/moment data for design evaluation andoptimization.
• Collaborate with multidisciplinary teams (structures, thermal, propulsion)by providing aerodynamic loads, surface pressures, and heat flux datafor coupled simulations and integrated performance analysis.
• Automate workflows and data analysis using Python or scripting tools formesh generation, solver execution, and result processing to improveefficiency and repeatability.
• Document and communicate findings through detailed technical reports,validation studies, and design recommendations to support airframe,propulsion, and system-level development efforts

Requirements

Required Skills:

• Perform aerodynamic simulations across subsonic tohypersonic flow regimes.
• Analyze external flows over airframes and internal flowsthrough ducts, intakes, and propulsion systems.
• Knowledge of Shockwave Boundary Layer Interaction andGas Dynamics.
• Experience with turbulence modeling (RANS, LES, DES)and mesh generation for complex geometries.
• Perform 6DOF Simulations with Dynamic and OversetMesh.
• Knowledge of External & Internal Aero (Subsonic toHypersonic Regime) Modelling– mandatory.
• Strong fundamentals in CFD with Ansys Chemkinknowledge- Preferred.
• Aerospace (or) Mechanical with strong knowledge onCombustion simulations.
• Knowledge of gas dynamics and shock interactionsmandatory
• Knowledge of external aerodynamics– mandatory
• Basic knowledge of MATLAB for post-processing.

Preferred Skills:

• Fluent dynamic and overset meshing
• Fluent 6DOF UDFs
• Fluent external aero best practice
• Pressure based and density-based solver’s applicabilityalong with pros & cons.
• Low subsonic to hyper-sonic flows. Most of the work is in0.9 to 5 Mach
• Adaptive meshingo Job submission on cluster(Pbs scripts) & RSM
• TUI journal utilization for automation of work
• ParametricoptimizationthroughOptiSLang.Parameterization through space claim and fluent forsimultaneous design point runs.
• Experience with ANSYS FLUENT/ STAR CCM+ or othercommercial CFD software.
• Sound background in Combustion, Computational FluidDynamics [CFD], Aerodynamics, & Aerothermodynamics,Scramjet Engine CFD Modelling, Propulsion, LiquidPropellant Rocket Engine Physics.
• Engaging personality, engineering curiosity andwillingness for continuous learning.
• Possesses a sense of urgency, strong organizational andfollow up skills.