Akash Yalagach

Akash Yalagach

Bengaluru, Karnataka, India
4K followers 500+ connections

Join to view profile

About

SpaceTech has been my playground — from launchpads at ISRO to building earth observation…

Experience

  • KaleidEO Graphic

    KaleidEO

    Bengaluru, Karnataka, India

  • -

    Bengaluru, Karnataka, India

  • -

    Bengaluru, Karnataka, India

  • -

    Thiruvananthapuram, Kerala, India

  • -

    Thiruvananthapuram, Kerala, India

  • -

    Thiruvananthapuram, Kerala, India

Education

Publications

  • Parametrisation and Practical Implementation of Deployable Optical Systems

    International Astronautical Congress 2022

    See publication

  • Wire Driven Mechanisms for Deployable Components for Optical Payloads

    SmallSat Conference

    See publication

  • Deployable barrel for a cubesat's optical payload

    AIAA SciTech Forum

    See publication

  • Study of Vortex Breakdown in a Cylindrical Cavity with a Rotating Endwall

    International Journal of Fluid Mechanics Research

    Flow in a cylindrical cavity with a rotating endwall is studied here. The flow structure is governed by two dimensionless parameters: Reynolds number and aspect ratio of the cavity. For certain combinations of Reynolds numbers and aspect ratios, vortex breakdown occurs and one or more recirculating regions are observed along the axis of rotation. Three-dimensional Navier−Stokes equations are solved for three aspect ratios (AR = 1.5, 2, and 2.5) and for various Reynolds numbers, where steady…

    Flow in a cylindrical cavity with a rotating endwall is studied here. The flow structure is governed by two dimensionless parameters: Reynolds number and aspect ratio of the cavity. For certain combinations of Reynolds numbers and aspect ratios, vortex breakdown occurs and one or more recirculating regions are observed along the axis of rotation. Three-dimensional Navier−Stokes equations are solved for three aspect ratios (AR = 1.5, 2, and 2.5) and for various Reynolds numbers, where steady solution exists. Results are compared with axisymmetric solutions. It was observed that, at higher Reynolds numbers the flow transforms from axisymmetric to three-dimensional and at very high Reynolds number, spiral counter-rotating vortices are formed due to centrifugal instabilities in the Stewartson layer.

    Other authors
    • Dr. Salih A.
    See publication

  • Controller Design for Lateral Dynamics of Reusable Launch Vehicle by H-Infinity Mixed Sensitivity Approach

    International Federation of Automatic Control - Papers Online

    During reentry flight regime of a typical Reusable Launch Vehicle (RLV), there is rise in dynamic pressure which increases the coupling between yaw (directional) and roll (lateral) dynamics. High uncertainty on aerodynamic coefficients due to less number of wind tunnel tests, makes it essential to use robust control design techniques to design a controller for any new aerodynamic configuration of RLV. Control system design during critical flight regime of RLV using ‘H-infinity Mixed…

    During reentry flight regime of a typical Reusable Launch Vehicle (RLV), there is rise in dynamic pressure which increases the coupling between yaw (directional) and roll (lateral) dynamics. High uncertainty on aerodynamic coefficients due to less number of wind tunnel tests, makes it essential to use robust control design techniques to design a controller for any new aerodynamic configuration of RLV. Control system design during critical flight regime of RLV using ‘H-infinity Mixed Sensitivity’ approach is addressed in this paper. The main bottle neck in using H-infinity approach is the lack of guidelines in finding weighting functions to achieve required time and frequency domain specifications. It is seen that the solution process becomes easier if the coupling and damping requirements are first addressed by designing the aileron to rudder interconnect (ARI) gain and roll-yaw rate gains using classical approach and then applying the H-infinity procedure on the plant model, updated with the designed ARI and rate gains, to shape the sensitivity and complementary sensitivity functions. This is the main contribution of our paper. This approach has resulted in highly robust controller against plant parameter perturbations. The yaw-roll coupling, which is the main problem, could also be eliminated to a greater extent.

    Other authors
    • Gopal Jee
    See publication

  • Feasibility Study of a Radiation Belt Explorer CubeSat GTO Mission

    33rd Annual AIAA/USU Conference on Small Satellites

    See publication

Honors & Awards

  • Commonwealth Scholarship

    Commonwealth Scholarship Commission in the UK

    • The Commonwealth Scholarship & Fellowship Plan is one of the largest and most prestigious scholarship schemes for international study in the world. The scholarship is offered to the citizens of developing Commonwealth nations and is funded by the UK Department for International Development.
    • Shortlisted for a national level panel interview based on CV and application profile.
    • Selected as the only nominee from India in the field of Aerospace Engineering for M.Sc. among 15 nationally…

    • The Commonwealth Scholarship & Fellowship Plan is one of the largest and most prestigious scholarship schemes for international study in the world. The scholarship is offered to the citizens of developing Commonwealth nations and is funded by the UK Department for International Development.
    • Shortlisted for a national level panel interview based on CV and application profile.
    • Selected as the only nominee from India in the field of Aerospace Engineering for M.Sc. among 15 nationally shortlisted applicants.
    • National nominations are sent to the Commonwealth Scholarship Commission, UK.
    • Finally selected among the successful candidates across Commonwealth Nations for the scholarship to pursue a fully-funded M.Sc. at the University of Surrey, UK.
    • The scholarship covered full tuition fees and provided a bursary for living expenses.

  • Best Student of the school

    Dr. G.V. Joshi Rotary English Medium High School

    Best Student is selected on the basis of overall academic performance, extra-curricular activities & an interview with a panel of teachers, professionals & alumni

View Akash’s full profile

  • See who you know in common
  • Get introduced
  • Contact Akash directly
Join to view full profile

Other similar profiles

Explore more posts

Explore collaborative articles

We’re unlocking community knowledge in a new way. Experts add insights directly into each article, started with the help of AI.

Explore More

Add new skills with these courses

See all courses