Hypersonics – from Shock Waves to Scramjets

МООК
en
Английский
16 h
This content is rated 0 out of 5
Source
  • From www.edx.org
Conditions
  • Self-paced
  • Free Access
  • Fee-based Certificate
More info
  • 4 Sequences
  • Advanced Level

Their employees are learning daily with Edflex

  • Safran
  • Air France
  • TotalEnergies
  • Generali
Learn more

Course details

Syllabus

Section 1. What is Hypersonics?
This section provides an introduction to the course. What we mean by "hypersonic speeds" is discussed and examples of vehicles that travel at such speeds are given. Shock waves and scramjets are also introduced. The rocket equation is introduced to show why staging of launch vehicles is used. The scramjet engine arrangement used throughout the course is outlined.

Section 2. Isentropic Flow
The times when a flow can be considered to be "isentropic" are introduced. This leads on to the fundamentals of compressible flow and steady adiabatic flows. We use the flow in a scramjet nozzle to demonstrate the principles.

Section 3. Shock Waves
Normal and oblique shock waves form when objects travel at close to, or in excess of, the speed of sound. In this section, methods for modelling the flow across shock waves are presented and discussed. Results from experiments are used to show the influence of flow deflection angle on the shock wave formed at hypersonic speeds. We use the flow in a scramjet intake to demonstrate the principles.

Section 4. Combustors in Scramjets
Flows with friction, heat addition and stoichiometry are important considerations for scramjet combustors. In this section example problems are worked through to show the importance of friction and heat addition to fluid flow at different Mach numbers. Stoichiometric concepts are developed so that the use of different fuels can be modelled.

Section 5. Hypersonics
This section looks at hypersonic flight, flight corridors and vehicle design. Hypersonics facilities, such as reflected shock tunnels and expansion tubes, are described since these are used to test scientific hypotheses related to hypersonic flight.

Section 6. Scramjets
This section describes the state of scramjet technology as it exists today, examines the history of scramjets and then looks at future possibilities of scramjet technology. The overall thrust of an air breathing engine is calculated.

Section 7. Project
In the final section, students are required to analyse the flow through an engine and determine the Specific Impulse for their own scramjet design.

Prerequisite

This is an open course and anyone can choose to participate and learn about hypersonics. If, however, you want to delve into the field deeply, it is recommended that you have a good understanding of introductory concepts in Calculus, Fluid Mechanics and Thermodynamics. These will enable you to fully participate in the course, particularly the assessment tasks. The following online courses could be useful for you to access before you start to get yourself up to speed:

  • Differential Equations (MIT Opencourse): Unit 1: Basic DE's, Linear ODE's, Integrating Factors
  • Calculus with Applications (MIT Opencourse): Any calculus related math required for our course
  • Thermodynamics and Kinetics (MIT Opencourse): Look up lecture notes to cover basic introductory thermodynamics

Instructors

Professor David J. Mee
School of Mechanical and Mining Engineering
The University of Queensland

Professor Richard G. Morgan
School of Mechanical and Mining Engineering
The University of Queensland

Professor Michael Smart
School of Mechanical and Mining Engineering
The University of Queensland

Associate Professor Vincent Wheatley
School of Mechanical and Mining Engineering
The University of Queensland

Dr Anand Veeraragavan
School of Mechanical and Mining Engineering
The University of Queensland

Editor

L'Université du Queensland est une université publique de recherche située principalement à Brisbane, la capitale de l'État australien du Queensland. Fondée en 1909 par le parlement du Queensland, l'UQ est l'une des six universités de grès, une désignation informelle de la plus ancienne université de chaque État. 

En combinant les trois classements mondiaux des universités les plus établis en 2023, l'Université du Queensland est classée 2e en Australie et 42e au monde. UQ est également membre fondateur d' edX, le principal groupe des huit d'Australie et l' association internationale à forte intensité de recherche des universités du Pacifique.

Platform

EdX est une plateforme d'apprentissage en ligne (dite FLOT ou MOOC). Elle héberge et met gratuitement à disposition des cours en ligne de niveau universitaire à travers le monde entier. Elle mène également des recherches sur l'apprentissage en ligne et la façon dont les utilisateurs utilisent celle-ci. Elle est à but non lucratif et la plateforme utilise un logiciel open source.

EdX a été fondée par le Massachusetts Institute of Technology et par l'université Harvard en mai 2012. En 2014, environ 50 écoles, associations et organisations internationales offrent ou projettent d'offrir des cours sur EdX. En juillet 2014, elle avait plus de 2,5 millions d'utilisateurs suivant plus de 200 cours en ligne.

Les deux universités américaines qui financent la plateforme ont investi 60 millions USD dans son développement. La plateforme France Université Numérique utilise la technologie openedX, supportée par Google.

This content is rated 4.5 out of 5
(no review)

What did you think of this course?

Complete this resource to write a review