User contributions for Vincent
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24 November 2012
- 02:0102:01, 24 November 2012 diff hist +744 N File:Heat transfer to rocket tank.c Program calculating the heat transferred to a cryogenic tank (typically LOX) for balloon- or air-to-orbit vehicles. Two heat transfer approximations are done. * when the vehicle is waiting on the ground after tank filling and before it lifts-off from the
23 November 2012
- 20:5420:54, 23 November 2012 diff hist +151 Rocket Main Tank →Calculating evaporation rate: update following the heat calculations
- 16:2016:20, 23 November 2012 diff hist +938 Heat transfer →Cases of application: fixing the flight evaluation of vap, it was calculated with the 5mm insulation instead of 10mm and wrong tank size, warning msgs
- 16:0416:04, 23 November 2012 diff hist −151 Heat transfer →Natural convection for horizontal cryogenic tank: fixing the wrong calculation of h and first real approximation of ground vap rate
- 04:2204:22, 23 November 2012 diff hist +195 Heat transfer →Cases of application: about the source, luke
- 04:1804:18, 23 November 2012 diff hist +110 Heat transfer →Natural convection for horizontal cryogenic tank: fixing text for the h error
- 04:0804:08, 23 November 2012 diff hist +355 Heat transfer →Forced convection on aircraft fuselage during flight: first approx of the vaporization rate with an insulation layer
- 03:5603:56, 23 November 2012 diff hist +1,003 Heat transfer →Forced convection on aircraft fuselage during flight: found the bug int the code... Pr is fine. First approximation of the flight vaporization rate
- 01:3601:36, 23 November 2012 diff hist +157 Heat transfer →References: lecture of sezai
22 November 2012
- 03:5903:59, 22 November 2012 diff hist +1,944 Heat transfer →Natural convection for horizontal cryogenic tank: first approximation and references
- 02:2102:21, 22 November 2012 diff hist +883 Heat transfer →Cases of application: calculation of h for ground operation
- 01:1001:10, 22 November 2012 diff hist +762 Heat transfer →Introduction to heat convection and conduction: Rayleigh number
21 November 2012
- 04:0504:05, 21 November 2012 diff hist +2,083 Heat transfer nearly up to current status
- 02:4502:45, 21 November 2012 diff hist +168 m Heat transfer →References: 2nd book
- 02:1002:10, 21 November 2012 diff hist +1,006 Heat transfer →Cases of application: starting the section
- 01:4501:45, 21 November 2012 diff hist +1,235 Heat transfer →Introduction to heat convection and conduction: up to Nusselt
- 00:2200:22, 21 November 2012 diff hist −754 Rocket Main Tank →Calculating evaporation rate: update following the creation of the dedicated page on heat
20 November 2012
- 22:4422:44, 20 November 2012 diff hist +62 m Resources →Resources: heat transfer link
- 22:4222:42, 20 November 2012 diff hist +43 m Aero formulas →Resources on physics related to aerodynamics: heat transfer link current
- 22:4022:40, 20 November 2012 diff hist +2,453 Heat transfer more on heat transfers
- 21:0821:08, 20 November 2012 diff hist +1,234 N Heat transfer starting the page
- 20:1520:15, 20 November 2012 diff hist −14 Rocket Main Tank →Calculating evaporation rate: corrections and introductin of the new heat page
19 November 2012
- 04:0304:03, 19 November 2012 diff hist +529 Flight at high altitude →Gas properties and altitude: more links for ISA current
- 00:3900:39, 19 November 2012 diff hist +86 Main Page →News: update for mid-nov
17 November 2012
- 03:1703:17, 17 November 2012 diff hist +249 File:ISA atmospheric model.c comments on the source current
- 03:1403:14, 17 November 2012 diff hist +171 m Rocket Main Tank →Calculating evaporation rate: links to ISA
- 02:5902:59, 17 November 2012 diff hist +195 N File:ISA atmospheric model.c C Implementation of the international standard atmosphere ([https://en.wikipedia.org/wiki/International_Standard_Atmosphere ISA]) model. This is a port of http://www.digitaldutch.com/atmoscalc/ .
- 02:4602:46, 17 November 2012 diff hist +207 Flight at high altitude →Gas properties and altitude: news about the atmospheric model
11 November 2012
- 04:2904:29, 11 November 2012 diff hist +215 m Main Page →The aircraft: links
- 03:4903:49, 11 November 2012 diff hist +261 Flight at high altitude →Gas properties and altitude: ISA
- 03:4503:45, 11 November 2012 diff hist +108 Flight at high altitude →Approaches overview: title changes and sr-71 link
9 November 2012
- 15:5915:59, 9 November 2012 diff hist +32 m Rocket:First approximations →Minimum mass evaluation: forgotten telemetry
- 15:5715:57, 9 November 2012 diff hist +592 Rocket Main Tank →Calculating evaporation rate: introducing atmospheric model
- 15:4515:45, 9 November 2012 diff hist +87 m Rocket:First approximations →Fuel tanks: tanks update and link
- 15:3115:31, 9 November 2012 diff hist +166 m Rocket:First approximations →Our first approximation: precisions about the current model
- 15:2715:27, 9 November 2012 diff hist +122 Rocket Main Tank →Resources: xcor and styrofoam
- 14:4714:47, 9 November 2012 diff hist +1,952 Rocket Main Tank aerogel
- 04:5104:51, 9 November 2012 diff hist +928 Rocket Main Tank →Cryogenic fuel tanks: evaporation rate
- 01:4501:45, 9 November 2012 diff hist +185 File:Rocket mass.c include images for tank model
- 01:3701:37, 9 November 2012 diff hist +39 N File:Rocket mass tanks v3.png tank model for rocket mass version >= 3 current
- 01:3601:36, 9 November 2012 diff hist 0 File:Rocket mass tanks v1-2.png uploaded a new version of "File:Rocket mass tanks v1-2.png": white bg current
- 01:3301:33, 9 November 2012 diff hist +43 N File:Rocket mass tanks v1-2.png tank model for rocket mass versions 1 and 2
8 November 2012
- 23:4623:46, 8 November 2012 diff hist +1,085 Rocket Main Tank page refactoring, more about insulation heat transmission and single divided tank
- 18:0018:00, 8 November 2012 diff hist +81 m LOX →Liquid Oxygen: tank link
- 04:1304:13, 8 November 2012 diff hist −1 m Rocket Main Tank →Thermal insulation: typo
- 04:1304:13, 8 November 2012 diff hist +148 m Rocket Main Tank →Wall thickness and material: material compat.
- 03:1203:12, 8 November 2012 diff hist +1,365 Rocket Main Tank →Cryogenic fuel tanks: about evaporation
- 02:4702:47, 8 November 2012 diff hist +5 Propellants →Oxidizers: nox critical point
- 02:4402:44, 8 November 2012 diff hist +59 m LOX →Liquid Oxygen: fixes
- 02:0802:08, 8 November 2012 diff hist +25 Main Page →Oxidizer: links
7 November 2012
- 18:4918:49, 7 November 2012 diff hist +392 File:Rocket mass.c →Features: mass ratio stuff
- 18:4118:41, 7 November 2012 diff hist +476 Rocket:First approximations →Minimum mass evaluation: text update and graph parameters
- 18:2918:29, 7 November 2012 diff hist +1,873 File:Rocket mass.c documentation
- 03:5703:57, 7 November 2012 diff hist +112 LOX →Liquid Oxygen: latent heat of vaporization
- 03:5103:51, 7 November 2012 diff hist 0 File:Rocket mass.c uploaded a new version of "File:Rocket mass.c": composite skirts, propellant venting and tank insulation (given data, not computed), mass ratio computed from delta V and Isp.
- 03:4603:46, 7 November 2012 diff hist −220 Rocket:First approximations →Our first approximation: 8.0 delta V instead of 9.0, lox venting, composite skirts, foam insulation
- 03:0403:04, 7 November 2012 diff hist +396 Rocket Main Tank →Thermal insulation: table and densities
6 November 2012
- 04:3704:37, 6 November 2012 diff hist +1,174 Rocket Main Tank more things to say about tanks
- 03:5403:54, 6 November 2012 diff hist +24 m Propellants →Oxidizers: LOX page link
- 03:5403:54, 6 November 2012 diff hist +25 m LOX →Liquid Oxygen: propellants link
- 03:5203:52, 6 November 2012 diff hist +129 m Rocket:First approximations →Our first approximation: 1kg payload hint
- 00:1700:17, 6 November 2012 diff hist +1,635 Propellants propellants basic data
5 November 2012
- 21:5121:51, 5 November 2012 diff hist +1,226 N Propellants starting propellants
- 19:2319:23, 5 November 2012 diff hist +6,020 N Aircraft Mission page creation current
- 16:3316:33, 5 November 2012 diff hist +847 Main Page →N-Prize and reflections on low-cost access to space: text fixes and adding main pages links
4 November 2012
- 02:5902:59, 4 November 2012 diff hist +26 Main Page →How to escape from Earth?: text fixes
- 02:1102:11, 4 November 2012 diff hist +50 Main Page →What is the LCAS project?: project info corrections
- 01:4801:48, 4 November 2012 diff hist +702 Main Page →News: nov 2012 news: rocket mass, graphs and twitter
2 November 2012
- 02:5402:54, 2 November 2012 diff hist +22 Rocket:First approximations →Minimum mass evaluation: source code link
- 02:4702:47, 2 November 2012 diff hist +357 N File:Rocket mass.c Program that iterates to compute an SSTO rocket's dry and wet mass (and other parameters). Compile with gcc -O2 -Wall rocket_mass.c -o rocket_mass -lm for normal use, and add -DMAKE_GRAPH after gcc on the command line if you want to create graph data as
- 02:3702:37, 2 November 2012 diff hist +2,624 Rocket:First approximations →Minimum mass evaluation: fifth graph: thrust and final acceleration, new close up graph for payload mass, and first approximation.
- 02:1502:15, 2 November 2012 diff hist +143 N File:Payload 0-6k.png Graph representing rocket dry and wet mass as function of the payload mass (or any other fixed mass subsystem), ranging from 0 to 6 kg payload.
- 01:4101:41, 2 November 2012 diff hist +131 N File:Final acceleration.png Graph representing final acceleration and engine's thrust as function of the initial acceleration (overall thrust-to-weight ratio).
1 November 2012
- 05:1205:12, 1 November 2012 diff hist +3,048 Rocket:First approximations algorithm for the iterative process and first graphs
- 04:4704:47, 1 November 2012 diff hist +175 N File:Overall thrust to weight.png Graph representing rocket dry and wet mass as function of the vehicle (overall) initial thrust-to-weight ratio. There is an equivalence with the acceleration in number of G's.
- 04:4504:45, 1 November 2012 diff hist +94 N File:Engine thrust to weight.png Graph representing rocket dry and wet mass as function of the engine's thrust-to-weight ratio.
- 04:4404:44, 1 November 2012 diff hist +100 N File:Mass ratio.png Graph representing rocket dry and wet mass as function of the mass ratio (fixed by Isp and Delta V).
- 04:4304:43, 1 November 2012 diff hist +111 N File:Payload 0-80kg.png Graph representing rocket dry and wet mass as function of the payload mass (or any other fixed mass subsystem).
- 01:2901:29, 1 November 2012 diff hist +464 RocketEngines →Rocket Engine: page summary and link to the approximations
- 01:2201:22, 1 November 2012 diff hist −264 m Aero formulas →List of equations: fixed formulas images colors
- 01:1901:19, 1 November 2012 diff hist +12 m Rocket:First approximations →Delta V achievement: fix formulas images color
28 October 2012
- 04:2204:22, 28 October 2012 diff hist +649 Rocket:First approximations →Systems design for minimum mass: more mass-related text
- 03:3303:33, 28 October 2012 diff hist +645 N LOX about LOX
- 00:1900:19, 28 October 2012 diff hist +1,984 Rocket:First approximations →Systems design for minimum mass: more about mass for all subsystems
27 October 2012
- 20:3620:36, 27 October 2012 diff hist +4 m RocketEngines →Cooling for a LOX/E85 engine: typo
23 October 2012
- 01:4201:42, 23 October 2012 diff hist +459 Turbofan:Bearings →Oil displacement without external pumping: discussion about the method
15 October 2012
- 03:1903:19, 15 October 2012 diff hist +23 Flight at high altitude →Gas properties and altitude: typo
- 03:0503:05, 15 October 2012 diff hist +806 Turbofan:Bearings text fixes and https wikipedia links
- 02:2002:20, 15 October 2012 diff hist +8 m Build a cheap turbofan https for wikipedia
3 September 2012
- 17:4617:46, 3 September 2012 diff hist +5 m Rocket:First approximations →Systems design for minimum mass: fixing reference
27 August 2012
- 02:5902:59, 27 August 2012 diff hist +480 Rocket:First approximations fixing multiple references and moving text in related new subsections
- 02:0002:00, 27 August 2012 diff hist +2,755 Rocket:First approximations ref to Francis's master and adding new minimal mass section
18 August 2012
- 03:4903:49, 18 August 2012 diff hist +872 Rocket:First approximations →Delta V requirements: gravity drag estimation link and first delta V sums
- 03:2003:20, 18 August 2012 diff hist +466 Rocket:First approximations →Delta V achievement: orca rocket links
16 August 2012
- 02:2002:20, 16 August 2012 diff hist +425 Rocket:First approximations →Delta V achievement: bold keywords, few fixes
- 02:0502:05, 16 August 2012 diff hist +331 Rocket:First approximations thrust to weight ratio
- 01:4701:47, 16 August 2012 diff hist +165 Resources →Web pages: +selenian boondocks
- 01:2201:22, 16 August 2012 diff hist +116 Rocket:First approximations →Delta V achievement: finishing a forgotten sentence ending.
15 August 2012
- 03:4003:40, 15 August 2012 diff hist +506 Rocket:First approximations →Delta V requirements: fixes and adding forgotten latitude
14 August 2012
- 17:5117:51, 14 August 2012 diff hist +722 Rocket:First approximations →Delta V achievement: example mass ratios
