Hypersonics – from Shock Waves to Scramjets
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Course Details
Cost
FREE
Upcoming Schedule
- On demand
Course Provider
edX online courses
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Harvard University, the Massachusetts Institute of Technology, and the
University of California, Berkeley, are just some of the schools that you have
at your fingertips with edX. Through massive open online courses (MOOCs) from
the world's best universities, you can develop your knowledge in literature,
math, history, food and nutrition, and more. These online classes are taught
by highly-regarded experts in the field. If you take a class on computer
science through Harvard, you may be taught by David J. Malan, a senior
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Engineering and Applied Sciences. But there's not just one professor - you
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Provider Subject Specialization
Sciences & Technology
Business & Management
Course Description
A flow is called hypersonic if the Mach number is greater than 5. This means that the flow speed is more than five times the speed of sound. In air at room temperature, the speed of sound is around 340 m/s, so a Mach 5 flow would have a flow speed of 1.7 km/s or just over 6,000 km/h. When a rocket launches a satellite into earth orbit, when a probe enters the atmosphere of another planet or when an aircraft is propelled by a supersonic combustion ramjet engine (a scramjet), hypersonic flows are encountered. Hypersonics – from Shock Waves to Scramjets introduces the basic concepts associated with flight at speeds greater than Mach 5 and takes students to the stage where they can analyse the performance of a scramjet engine that might be used in a future access-to-space system.
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Aditya Manjeshwar
10/10 starsCompleted
3 years, 1 month ago
A fantastic platform to apply the basic concepts of thermodynamics and fluid dynamics in a real world situation to analyse the performance of a scramjet engine. The instructors had a deep knowledge of the subject and more importantly conveyed it brilliantly. A must for all those interested in the field of aeronautics
student
10/10 starsCompleted
3 years, 5 months ago
I am a first year Mechanical Engineering student and I found this course amazingly instructive and deep in terms of how complex jet engines are simplified with the main aim of giving learners the opportunity to comprehend the tools and techniques used in the development of Scramjet engine.
The course is designed for students from any background with basic knowledge of physical sciences to be able to understand the complexity of such engines in a simplified yet detailed manner. Thumbs up to all the lecturers at the University of Queensland. Hoping to see more courses like this.
- 1 review
- 1 completed
5 years, 6 months ago
Prior experience: Previous work with compressible flow and hypersonic flow
field analysis in CFD. The course is very thorough in the way it introduces
the concepts of hypersonic flight and scramjet vehicles step by step, building
upon each section in order to achieve its objective: the project (simplified,
of course) of a scramjet engine in all its components. This allows the student
to grasp the behavior of the flow fields at each component of a scramjet and
see the bigger picture of the entire engine. The course was definitely well
structured, with no hesitation to develop pertinent equations and analyzing
its components, showing well the physical implications of the mathematical
formulation. I certainly recommend this course to anyone in the field and also
to anyone who is interested in hypersonics, but without prior experience.
Student
8/10 starsCompleted
5 years, 7 months ago
The quality of the lectures was a bit uneven. Some of the lecturers summarized
their equations in the accompanying text while others left us trying to read
their scribbles on the board in the videos.
Overall, the course was very good; I learned a lot. I took the course strictly
for fun, and fun it was.
- 2 reviews
- 2 completed
5 years, 7 months ago
I took the course as an auditor to introduce myself to the subject material.
Much of it was over my head, but it provided the ground work that I was
looking for to understand what hypersonic flight and problems of hypersonic
flight are all about. The presentation was very good, and a novice like me
could follow along and glean almost everything from the course shy of being
able to actually apply the engineering and physical concepts to the actual
design of a scram-jet.
- 1 review
- 1 completed
5 years, 7 months ago
I work in the field of hypersonics research. I can not compare this course to
others as this was the first time I took an online course. The course is well
organized for good understanding and have a nice learning curve. If you are an
young engineer and do want to learn more about future air breathing jet
engines this course is a must. The University of Queensland is the leading
research institution in this subject in my opinion.
- 4 reviews
- 3 completed
5 years, 7 months ago
I agree with a previous reviewer. Professor Morgan kept me on my toes with
some note taking, and even so still had some difficulties in certain sections.
I still loved the course regardless. A lot fun! I personally used a spread
sheet to keep track of, especially near the end, the more long winded aspects
of computations, or if you have it some favorite math software handy as a
computational aid, preferably something that can be used for sequential
computations (especially where if having to change parameters at the outset,
this wouldn't leave with you with the same set of work in reformulating
answers. Final project had an interconnected series of computations, over 50+
steps, but generally straight forward in terms of problem solving. I highly
recommend compressible flow calculator for use here, this being the case if
you decide to take the course for the full blown mathematics sides of things!
Student
10/10 starsCompleted
5 years, 7 months ago
This was a very good course with very good choice of material from this
complex field of scramjet design. The lectures were well done and quite
understandable. The questions were practical and instructive. The contact
with the professors through the discussion group was very good. The final
project tied everything together very nicely and demonstrated the student's
new ability to understand and analyze scramjet engines.
- 1 review
- 0 completed
5 years, 7 months ago
I enjoyed the course immensely & only took it to have something to audit &
keep the brain working at the current contract job I had. All the teachers
were very clear & explained the subject well. I unfortunately had to drop it
because the location I was working has terrible internet speed & found that
during a typical 1 hr lunch I was waiting for the internet to catch up about
55 of those minutes. very frustrating so I stopped wasting my time! But all in
all I was very pleased & will be taking more classes thru EDX when my next job
has reasonable internet speed.
- 1 review
- 1 completed
5 years, 7 months ago
Professors David Mee and Vincent Wheatly were amazing. Their lecture delivery
and topic explanation with complete clarity and dwelling deep into the
fundamental concept approach was brilliant. I was able to clear my
hypersonics' fundamentals to a very good extent.
On the other hand, Professor Morgan's lectures were highly confusing and
unclear.
The concept of the theoretical project analysis was very good. I enjoyed
analyzing the scramjet conditions and finally was able to calculate the
specific impulse accurately. However, the 2% error margin proposed was
relative to some very specific values, and therefore the calculation of even
the correct values was sometimes misleading. The numerical values used in
every successive calculation using the aerodynamics calculator was taken by
the staff or their pre installed algorithm, as to be approximated to a
'confusing' number of significant figures, which led to highly confusing and
bizarre...
Professors David Mee and Vincent Wheatly were amazing. Their lecture delivery
and topic explanation with complete clarity and dwelling deep into the
fundamental concept approach was brilliant. I was able to clear my
hypersonics' fundamentals to a very good extent.
On the other hand, Professor Morgan's lectures were highly confusing and
unclear.
The concept of the theoretical project analysis was very good. I enjoyed
analyzing the scramjet conditions and finally was able to calculate the
specific impulse accurately. However, the 2% error margin proposed was
relative to some very specific values, and therefore the calculation of even
the correct values was sometimes misleading. The numerical values used in
every successive calculation using the aerodynamics calculator was taken by
the staff or their pre installed algorithm, as to be approximated to a
'confusing' number of significant figures, which led to highly confusing and
bizarre numerical values. I would suggest the staff to mention specifically
the number of significant figures required in the answers, so that errors in
the successive problems can be minimized.
Finally, I am satisfied to have completed the course as an ID verified student
and 89% grade.