Separation Dynamics of Air-to-Air Missile and Validation with Flight Data

  • Debasis Chakraborty Defence Research and Development Laboratory, Hyderabad - 500 058, India
  • K Anandhanarayanan Defence Research and Development Laboratory, Hyderabad - 500 058, India
  • Ankit Raj Defence Research and Development Laboratory, Hyderabad - 500 058, India
  • Vaibhav Shah Defence Research and Development Laboratory, Hyderabad - 500 058, India
  • R Krishnamurthy Defence Research and Development Laboratory, Hyderabad - 500 058, India
Keywords: Grid-free method, Chimera cloud, Store separation dynamics, Rigid body dynamics, Validation

Abstract

Prediction of flight characteristics of a store in the vicinity of an aircraft is vitally important for ensuring the safety of the aircraft and effectiveness of the store to meet the mission objective. Separation dynamics of an agile air-to-air-Missile from a fighter aircraft is numerically simulated using an integrated store separation dynamics suite. Chimera cloud of points along with a grid-free Euler solver is used to obtain aerodynamic force on the missile and the force is integrated using a rigid body dynamics code to obtain the missile position. In the present work, the suite is applied to a flight test case and sensitivity of trajectory variables on launch parameters is studied. Further, the results of the suite are compared with the flight data. The predicted body rates and Euler angles of missile compare well with the flight data. 

 

Author Biographies

Debasis Chakraborty, Defence Research and Development Laboratory, Hyderabad - 500 058, India

Dr Debasis Chakraborty obtained his PhD in Aerospace Engineering from Indian Institute of Science (IISc), Bengaluru. Presently, he is working as Technology Director, Computational Dynamics, DRDO-Defence Research and Development Laboratory, Hyderabad. His research interests are CFD, aero-dynamics, high-speed combustion, and propulsion. 

His contribution in the present work is to provide overall guidance to the team.

K Anandhanarayanan, Defence Research and Development Laboratory, Hyderabad - 500 058, India

Dr K. Anandhanarayanan, received his BTech (Aeronautical Engineering) from MIT, Chennai, in 1991, ME (Guided Missiles) from IAT, Pune in 1993 and PhD from Department of Aerospace Engineering, Indian Institute of Science, Bengaluru, in 2004. Presently, he is working as Scientist at DRDO-Defence Research and Development Laboratory, Hyderabad. His areas of interests are Algorithm development for CFD applications, Grid-free Euler and Navier-Stokes solvers, Direct Simulation Monte Carlo based Euler-Boltzmann coupled solver for non-equilibrium transitional flows and Distributed Computing. 

His contributions to the present work are carrying out store separation studies and validation. 

Ankit Raj, Defence Research and Development Laboratory, Hyderabad - 500 058, India

Mr Ankit Raj received his BTech (Mechanical Engineering) from NIT Jalandhar, in 2009. Presently, he is working as Scientist at DRDO-Defence Research and Development Laboratory, Hyderabad. His areas of interests are Grid generation, store separation dynamics and optimisation. 

His contributions to the present work are application of the suite to flight conditions and comparison with the flight data.

Vaibhav Shah, Defence Research and Development Laboratory, Hyderabad - 500 058, India

Mr Vaibhav Shah received his BTech (Mechanical Engineering) from NIT Kurukshetra, in 2002. Presently, he is working as Scientist at the DRDO-Defence Research and Development Laboratory, Hyderabad. His areas of interest are Grid generation around flight vehicles, store separation dynamics using CFD techniques and computational electromagnetics. 

His contribution for the present work is carrying out of the sensitive study of launch conditions on trajectory parameters.

R Krishnamurthy, Defence Research and Development Laboratory, Hyderabad - 500 058, India

Dr R. Krishnamurthy received his BTech (Aeronautical Engineering) from MIT, Chennai, in 1988, ME and PhD from Department of Aerospace Engineering, IISc, Bengaluru, in 1990 and 2002, respectively. Presently he is Head of the Computational Fluid Dynamics Division, DRDO-Defence Research and Development Laboratory, Hyderabad. His areas of interest include : Grid generation, Unsteady aerodynamics and computational aeroelasticity. 

His contribution in the present work is to review the simulation results and coordination with project for obtaining various inputs.

Published
2017-12-18
How to Cite
Chakraborty, D., Anandhanarayanan, K., Raj, A., Shah, V., & Krishnamurthy, R. (2017). Separation Dynamics of Air-to-Air Missile and Validation with Flight Data. Defence Science Journal, 68(1), 5-11. https://doi.org/10.14429/dsj.68.11480
Section
Commemorative Issue - DRDO