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M.O.P. Super Posteur
Inscrit le: 11 Mar 2004 Messages: 3224
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Posté le: Ven 04 Jan 2019 03:33 Sujet du message: La Technologie des Fusee (astronautique) |
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[url=https://fr.wikipedia.org/wiki/Fusée_(astronautique)]wikipedia: Fusée (astronautique)[/url]
https://fr.wikipedia.org/wiki/Fusée_(astronautique)
V2, la première fusée opérationnelle: Operation Backfire - A4 V2 German Rocket Documentary von Braun
https://youtu.be/80DzifHHIxk
Livre: Rocket Propulsion Elements
N.B. Le livre peut etre telecharge sur torrent, etc.
Citation: | THE DEFINITIVE INTRODUCTION TO ROCKET PROPULSION THEORY AND APPLICATIONS
The recent upsurge in global government and private spending and in space flight events has resulted in many novel applications of rocket propulsion technology. Rocket Propulsion Elements remains the definitive guide to the field, providing a comprehensive introduction to essential concepts and applications. Led by industry veteran George P. Sutton and by Professor Oscar Biblarz, this book provides interdisciplinary coverage including thermodynamics, aerodynamics, flight performance, propellant chemistry and more.
This thoroughly revised ninth edition includes discussion and analysis of recent advances in the field, representing an authoritative reference for students and working engineers alike. In any engineering field, theory is only as useful as it is practical; this book emphasizes relevant real-world applications of fundamental concepts to link "thinking" and "doing". This book will help readers:
•Understand the physics of flight and the chemistry of propulsion
•Analyze liquid, solid, gas, and hybrid propellants, and the engines they fuel
•Consider high-temperature combustion, stability, and the principles of electric and chemical propulsion
•Dissect the workings of systems in common use around the world today
•Delve into the latest advances in materials, systems, propellants, and more
Broad in scope, rich in detail, and clear in explanation, this seminal work provides an unparalleled foundation in aerospace engineering topics. Learning through the lens of modern applications untangles complex topics and helps students fully grasp the intricacies on a more intuitive level. Rocket Propulsion Elements, Ninth Edition merges information and utility building a solid foundation for innovation.
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M.O.P. Super Posteur
Inscrit le: 11 Mar 2004 Messages: 3224
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M.O.P. Super Posteur
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M.O.P. Super Posteur
Inscrit le: 11 Mar 2004 Messages: 3224
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M.O.P. Super Posteur
Inscrit le: 11 Mar 2004 Messages: 3224
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Posté le: Sam 18 Mai 2019 09:12 Sujet du message: Re: La Technologie des Fusee (astronautique) |
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Elements of Propulsion: Gas Turbines and Rockets, Second Edition
https://www.amazon.com/dp/1624103715/ref=sr_1_1?qid=1558167072&refinements=p_27%3AJack+D.+Mattingly+and+Keith+M.+Boyer&s=books&sr=1-1&text=Jack+D.+Mattingly+and+Keith+M.+Boyer
Citation: | Elements of Propulsion: Gas Turbines and Rockets, Second Edition provides a complete introduction to gas turbine and rocket propulsion for aerospace and mechanical engineers. Textbook coverage has been revised and expanded, including a new chapter on compressible flow. Design concepts are introduced early and integrated throughout. Written with extensive student input, the book builds upon definitions and gradually develops the thermodynamics, gas dynamics, rocket engine analysis, and gas turbine engine principles. Please note:
In order to make room for new content some materials that appeared in previous editions of the book are now available as complimentary Supporting Materials downloads from the publisher web site. For information on accessing this material please consult page 949 in the back of the textbook.
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Dernière édition par M.O.P. le Mer 22 Mai 2019 04:36; édité 1 fois |
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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Posté le: Dim 26 Mai 2019 06:44 Sujet du message: |
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Elon Musk: Great video. Couple notes:
https://twitter.com/elonmusk/status/1132386984444383233
Citation: | Great video. Couple notes: Raptor designed for subcooled CH4/O2, so propellant density & thrust increase up to ~8%, as needed for mission. 380 Isp & up to 50% thrust/weight improvement over time. Merlin thrust/weight doubled from V1, but Raptor is closer to optimum. |
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M.O.P. Super Posteur
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Posté le: Mar 09 Juil 2019 06:50 Sujet du message: SpaceX Merlin (& Raptor ) Engine R&D, GPU-Powered |
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2015: SpaceX Merlin (& Raptor ) Engine R&D:
GPU-Powered simultation of combustion in very large rocket engines
https://youtu.be/txk-VO1hzBY
Citation: | Adam Lichtl and Stephen Jones of SpaceX talk about simultating combustion in very large rocket engines. They use graphics processing units (GPUs) from nVidia for this task. While not directly mentioning Raptor, the limits they are pushing are clearly the result of the need to understand ever larger combustion systems, and they wouldn't be pushing as hard if this was only for the Merlin engine, which is already operational as well as reliable. From: GPU Tech Conference, San Jose, California, March 17 - 20, 2015. Originally posted here: http://on-demand.gputechconf.com/gtc/2015/video/S5398.html |
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M.O.P. Super Posteur
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Posté le: Dim 14 Juil 2019 04:42 Sujet du message: SN6 Raptor TVC Checks on Starhopper - July 12-13, 2019 |
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SN6 Raptor TVC Checks on Starhopper - July 12-13, 2019
https://youtu.be/3pD5CZZfnYk
Citation: | Starshopper's newly installed SN6 Raptor engine
enjoyed its TVC (Thrust Vector Control) tests overnight on July 12-13, 2019.
TVC gimbals the engine and allows for steering control. |
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M.O.P. Super Posteur
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Posté le: Ven 26 Juil 2019 09:08 Sujet du message: A4 / V2 Rocket in detail: Turbopump |
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The Wernher von Braun V2 Rocket Academy
https://www.youtube.com/playlist?list=PLCF06C6E015357CB3
A4 / V2 Rocket in detail: Turbopump
https://youtu.be/EgiMu8A3pi0
Citation: | We find out what can be learnt from historical turbopump relics found at impact sites and research facilities.
1:11 Introduction to the turbopump parts and its location on the missile
12:55 The turbopump presentation at the Peenemünde Historical-Technical museum.
23:40 Why do we need a turbopump?
34:04 Contractors and turbopump development
42:39 The Walter steam generation plant
(Erratum: please note we spelt Walter's name wrong in the video).
46:00 The chemistry used to generate the steam
55:22 Introducing the Mack Sennett School for missile research
1:06:46 How the steam generator works
1:12:44 Turbopump and launch sequence
1:18:12 The Steam rotor
1:26:27 A look at historical relics of the turbopump
1:48:47 What's in part 2, followed by closing credits
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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Posté le: Mer 30 Oct 2019 10:30 Sujet du message: |
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Everyday Astronaut: Are Aerospikes Better Than Bell Nozzles?
https://youtu.be/D4SaofKCYwo
Citation: | Timestamps:
6:20 - How Nozzles Work
16:00 - How Aerospikes Work
19:55 - The Problems With Aerospikes
32:50 - Comparing Aerospike Engines To Bell Engines
41:30 - What The Experts Say
51:35 - Future Aerospike Prospects
54:00 - Summary
Article version for easy reading and references - http://everydayastronaut.com/aerospikes
Today we’re going to look at the history of aerospike engines, go over how nozzles work including things like overexpansion, underexpansion and even expansion ratios, we’ll look at the pros and cons of the aerospike, the physical limitations and problems, then we’ll compare the aerospike to some other traditional rocket engines.
But that’s not all, I obtained never seen before photos and videos of some aerospikes, we’ll get opinions from some people who have actually worked with aerospike engines, look at some promising prospects and compelling concepts and by the end of the video we’ll hopefully know whether or not the holy grail of rocket engines is just waiting to be utilized or if aerospikes just simply aren’t worth it. |
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M.O.P. Super Posteur
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M.O.P. Super Posteur
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Posté le: Dim 08 Déc 2019 07:01 Sujet du message: |
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The Royal Institution: It's Rocket Science! with Professor Chris Bishop
https://youtu.be/HESOat2iPzU
Citation: | Starting with the one simple principle that has powered every rocket that's ever flown, Professor Chris Bishop launches through an explosive journey to the moon and back.
Click here to subscribe for more science videos: http://bit.ly/RiSubscRibe
This lecture from the Cambridge science festival is packed with demonstrations of the science that sends people into space. A family-filled lecture theatre sees flying projectiles, the fiery combustion of energetic propellants, and the impressive roar and flame of a hybrid rocket engine. |
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