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Ramji Veerappan, PhD

Lead Aerodynamics & CFD Engineer | Hypersonics • Missile/Launch Vehicle Design • High-Fidelity & Experimental Simulation | PhD – IISc | AIR 15 – GATE AE |

Greater Bengaluru Area

11+ years of work experience

Skyroot Aerospace
Apr 20251 yr 6 mosPresent

Hyderabad, Telangana, India

Key Contributions • Leading CFD pipeline for aerodynamic databases of launch vehicles (subsonic to hypersonic) including mesh generation, solver setup automation, and post-processing. • Performed shock interaction analysis, buffet assessment, and stability/rolling-moment estimation for multi-body configurations. • Developed Python utilities for parametric automation, reducing preprocessing and post-processing time significantly. • Executed RANS/Hybrid simulations for external aerodynamics, plume–vehicle interaction, and aero-thermal loading. • Cross-collaborated with GNC, thermal, and structures teams to deliver data for vehicle sizing and performance optimization.
Metacomp Technologies
Mar 20241 yr 1 moMar 2025

Chennai

Supported high-speed CFD simulations using CFD++, overset grids, and multi-physics models. Worked on Verification & Validation, and advanced modeling (shock interactions, reacting flows).
Indian Institute of Science (IISc)
Nov 20234 mosFeb 2024

Bengaluru, Karnataka, India

• Investigated shock-induced separation and unsteady SBLI physics in hypersonic ramp flows. • Designed and operated high-enthalpy test setups, including Schlieren and high-speed imaging. • Applied POD/DMD/SPOD for extracting modal dynamics and flow scaling laws. • Built and validated surrogate models to predict separation characteristics. • Developed analytical and empirical models for separation bubble extent, frequency, and transition behavior.
Indian Institute of Science
Aug 20167 yrs 4 mosNov 2023

Bengaluru, Karnataka, India

ACS College of Engineering, Bengaluru, India
Jul 20151 yr 1 moJul 2016

Bengaluru, Karnataka, India

Education

Indian Institute of Science (IISc)

Doctor of Philosophy - PhD, Aerospace Engineering

Indian Institute of Science (IISc)

20166 yrs2022
Madras institute of technology

Master's degree, Aeronautical Engineering

Madras institute of technology

20122 yrs2014

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Ramji Veerappan, PhD on Tal

Headline

Lead Aerodynamics & CFD Engineer | Hypersonics • Missile/Launch Vehicle Design • High-Fidelity & Experimental Simulation | PhD – IISc | AIR 15 – GATE AE |

About

I am an aerospace engineer and CFD specialist with a PhD from the Indian Institute of Science (IISc), focused on hypersonic aerodynamics, shock–boundary layer interactions, and high-speed flow physics. My experience spans experimental aerodynamics and high-fidelity CFD, giving me a strong grounding in understanding and modeling complex flow phenomena. During my doctoral research, I designed and operated hypersonic test facilities, performed Schlieren visualization, and investigated unsteady shock–boundary layer interactions and separation dynamics in ramp flows. I have hands-on experience with data analysis techniques such as POD/DMD/SPOD and other reduced-order methods to extract physical insight from large datasets. In industry, I lead end-to-end CFD pipelines for launch vehicle aerodynamics—covering meshing (Pointwise/Fluent Meshing), geometry preparation, solver automation, parametric analysis, and aerodynamic coefficient generation across subsonic to hypersonic regimes. I regularly work with ANSYS Fluent, CFD++, OpenFOAM, SpaceClaim, MATLAB, and Python to deliver reliable aerodynamic predictions for real-world engineering decisions. I am particularly interested in high-speed aerodynamics, launch vehicle and missile aerodynamics, shock-dominated flows, and modeling techniques for performance and stability assessment. I also maintain familiarity with reduced-order modeling and data-driven approaches as supporting tools for faster design iteration. I am now seeking international opportunities in high-impact aerospace R&D environments—especially those working on high-speed flight, propulsion systems, advanced aerodynamics, and CFD-based design—where I can contribute deep technical expertise and continue to grow as an engineer.

Location

Greater Bengaluru Area

Work experience

Lead Aerodynamics Engineer at Skyroot Aerospace, Apr 2025 - Present · 1 yr 6 mos, Hyderabad, Telangana, India, Key Contributions • Leading CFD pipeline for aerodynamic databases of launch vehicles (subsonic to hypersonic) including mesh generation, solver setup automation, and post-processing. • Performed shock interaction analysis, buffet assessment, and stability/rolling-moment estimation for multi-body configurations. • Developed Python utilities for parametric automation, reducing preprocessing and post-processing time significantly. • Executed RANS/Hybrid simulations for external aerodynamics, plume–vehicle interaction, and aero-thermal loading. • Cross-collaborated with GNC, thermal, and structures teams to deliver data for vehicle sizing and performance optimization.

Scientist at Metacomp Technologies, Mar 2024 - Mar 2025 · 1 yr 1 mo, Chennai, Supported high-speed CFD simulations using CFD++, overset grids, and multi-physics models. Worked on Verification & Validation, and advanced modeling (shock interactions, reacting flows).

Postdoctoral Researcher at Indian Institute of Science (IISc), Nov 2023 - Feb 2024 · 4 mos, Bengaluru, Karnataka, India, • Investigated shock-induced separation and unsteady SBLI physics in hypersonic ramp flows. • Designed and operated high-enthalpy test setups, including Schlieren and high-speed imaging. • Applied POD/DMD/SPOD for extracting modal dynamics and flow scaling laws. • Built and validated surrogate models to predict separation characteristics. • Developed analytical and empirical models for separation bubble extent, frequency, and transition behavior.

Research Scholar at Indian Institute of Science, Aug 2016 - Nov 2023 · 7 yrs 4 mos, Bengaluru, Karnataka, India

Assistant Professor at ACS College of Engineering, Bengaluru, India, Jul 2015 - Jul 2016 · 1 yr 1 mo, Bengaluru, Karnataka, India

Education

Doctor of Philosophy - PhD, Aerospace Engineering, Indian Institute of Science (IISc)

Master's degree, Aeronautical Engineering, Madras institute of technology

Ramji Veerappan, PhD - Lead Aerodynamics Engineer in Greater Bengaluru Area | Tal