Expertise in CFD and External & Internal Aero (Subsonic to Hypersonic Regime). The ideal candidate will have a deep understanding of gas dynamics and shock interactions, aerodynamics, and possess excellent problem solving skills to deliver high-quality simulations 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+, 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 flow performance.

- Analyze complex flow phenomena such as shock formation, expansion waves, separation, and Shockwave–Boundary Layer Interaction, ensuring accurate 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), applying appropriate boundary conditions, compressibility effects, and gas dynamic principles.

- Apply advanced turbulence models — RANS, LES, DES, or hybrid methods — and justify their selection based on flow regime, Reynolds number,and accuracy requirements.

- Generate high-quality meshes for complex geometries using structured, unstructured, or hybrid approaches, ensuring proper near-wall resolution (y⁺ control) and grid independence for reliable aerodynamic predictions.

- Conduct 6DOF dynamic simulations using energetic and overset meshes to study vehicle motion, stability,



and control behaviour during free-flight or moving-bodyscenarios.

- Post-process and analyse CFD results, extracting aerodynamic coefficients (Cl, Cd, Cm), flow visualization plots (Mach contours, Cp distributions), and force/moment data for design evaluation and optimization.

- Collaborate with multidisciplinary teams (structures, thermal, propulsion) by providing aerodynamic loads, surface pressures, and heat flux data for coupled simulations and integrated performance analysis.

- Automate workflows and data analysis using Python or scripting tools for mesh generation, solver execution, and result processing to improve efficiency 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 to hypersonic flow regimes.

- Analyze external flows over airframes and internal flows through ducts, intakes, and propulsion systems.

- Knowledge of Shockwave Boundary Layer Interaction and Gas Dynamics.

- Experience with turbulence modeling (RANS, LES, DES)



and mesh generation for complex geometries.

- Perform 6DOF Simulations with Dynamic and Overset Mesh.

- Knowledge of External & Internal Aero (Subsonic to Hypersonic Regime) 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:

- Fluent dynamic and overset meshing

- Fluent 6DOF UDFs

- Fluent external aero best practice

- Pressure based and density-based solver’s applicability along with pros & cons.

- Low subsonic to hyper-sonic flows. Most of the work is in 0.9 to 5 Mach

- Adaptive meshing o Job submission on cluster(Pbs scripts) & RSM

- TUI journal utilization for automation of work

- Parametric optimization through OptiSLang. Parameterization through space claim and fluent for simultaneous design point runs.

- Experience with ANSYS FLUENT/ STAR CCM+ or other commercial CFD software.

- Sound background in Combustion, Computational Fluid Dynamics [CFD], Aerodynamics, & Aerothermodynamics, Scramjet Engine CFD Modelling, Propulsion, Liquid Propellant Rocket Engine Physics.

- Engaging personality, engineering curiosity and willingness for continuous learning.

- Possesses a sense of urgency, strong organizational and follow up skills.

📌 Simulation Engineer - CFD (Aerodynamic ) (Hyderabad)
🏢 Nameless
📍 Hyderabad