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Strength and Frequency of Underwater Shock Waves Related to Sterilization Effects on a Marine Bacterium Read chapter Read first chapter

2019 | OriginalPaper | Chapter

Modeling of 3-DOF Launch Dynamics in Transonic and Supersonic Regime Using Navier-Stokes Equation

Authors : Anupam Purwar, Gopalan Jagadeesh

Published in: 31st International Symposium on Shock Waves 2

Publisher: Springer International Publishing

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Abstract

The modeling of rigid body dynamics including the trajectory estimation of a launch vehicle is essential to investigate the effects of various flow interactions with vehicle for possible instabilities encountered in the transonic and supersonic regime. This work presents a systematic formulation for simulation of the vehicle trajectory under aerodynamic forces, which are calculated by solving the Navier-Stokes equations using the open-source software package SU2. A closed-loop computational framework consisting of computational fluid dynamics (CFD) and kinematic equation solver has been developed. This framework (Fdynam) has been used to estimate typical properties of launch trajectory, viz., Mach number vs. time and dynamic pressure vs. altitude, under the effect of thrust, gravity, and aerodynamic loads. A maximum dynamic pressure of 70 kPa and terminal launch phase Mach number of 4.7 have been estimated for National Launch System (NLS1.5) configuration during powered ascent to an altitude of 30 km.

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Metadata
Title
Modeling of 3-DOF Launch Dynamics in Transonic and Supersonic Regime Using Navier-Stokes Equation
Authors
Anupam Purwar
Gopalan Jagadeesh
Copyright Year
2019
Book
31st International Symposium on Shock Waves 2

Print ISBN: 978-3-319-91016-1

Electronic ISBN: 978-3-319-91017-8

Copyright Year: 2019

DOI
https://doi.org/10.1007/978-3-319-91017-8_126

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