Liquid Rocket Engine Design (Fundamentals and Calculations)

INTRODUCTION

This session will cover the thermodynamics and fluid dynamics of rocket engines and the fundamental operation of rocket engines will be addressed, along with the feed system and cooling techniques. The main topic of discussion is thermal expansion of rocket propellant.

Introduction to Liquid Rocket Engine – Propellant Choice – Feed System – Cooling Techniques – Thermal Expansion – Gas Flow in Thrust Chamber and Nozzles.

DESIGN EQUATION

We’ll talk about the mathematical formulas for rocket engines in this session. The rocket nozzle’s contour is calculated using equations, which is more crucial for designing a smooth flow of superheated gas inside the engine and other essential requirements.

Ejecting Velocity – Nozzle Shape Design – Nozzle Expansion Area Ratio – Combustion Chamber Design – Injector Design – Pressure Feed System – Turbo Pump Feed System.

MODELLING

In this lesson, we’ll talk about the fundamentals of 3D modelling tools and how to use them with the appropriate software. Additionally, calculations will be made in this session, and students will design the rocket engine tube using their newly acquired 3D modelling skills and the calculations they have generated.

3D Modelling Tools – Design Requirements – NASA’s CEARUN – Design Calculations – 3D Modelling.

COURSE OUTCOMES

• Students are capable of comprehending the fundamentals of fluid dynamics and thermodynamics.

• The design of rockets can be approached mathematically by students.

• Students can design CAD models.

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