CFD Online Logo CFD Online URL
Home > Forums > System Analysis

idea for the Rocket

Register Blogs Members List Search Today's Posts Mark Forums Read

LinkBack Thread Tools Display Modes
Old   August 1, 2013, 03:31
Default idea for the Rocket
New Member
Join Date: Jul 2013
Posts: 8
Rep Power: 6
big-bang is on a distinguished road
dear all,,
i have a rocket model .
but i cant analysis What happens !
for ex i dont know for better flight we must have more pressure or more velocity in The output of rocket?
and Whether this modeling is good for flight if not why?
Attached Images
File Type: jpg 1.jpg (37.7 KB, 62 views)
File Type: jpg 2.jpg (38.7 KB, 54 views)
big-bang is offline   Reply With Quote

Old   August 21, 2013, 07:15
Artem Shaklein
Join Date: Feb 2010
Location: Russia, Izhevsk
Posts: 43
Rep Power: 9
ARTem is on a distinguished road
Hello, big-bang.
First of all, you should ask yourself what really you want from your model (distance range, flight velocity, amount of useful mass, etc.).
You can use Meshchersky equation to evaluate for yourself contribution to impulse from pressure difference (p_atm-p_nozzleCut)*F_nozzleCut and mass flow rate (and of course, it's mass flow of combustion products that moves rockets).
Of course, modeling is good not just for flight but for all engineering applications.
You can evaluate friction coefficient at different altitudes, impulse given to rocket from fuel and nozzle configuration, heat taken by rocket shell from air and hot combustion products, stress in rocket components due to start acceleration and maneuvers and etc.
ARTem is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

Similar Threads
Thread Thread Starter Forum Replies Last Post
combustion flow simulation in liquid rocket thrust chamber geetha sri FLUENT 1 February 4, 2016 18:04
Need help with a rocket nozzle simulation badboyz31 CFX 14 September 22, 2014 00:06
Project idea.. vinno Main CFD Forum 0 October 3, 2010 16:53
Rocket Combustion Aralati FloEFD, FloWorks & FloTHERM 0 March 13, 2010 22:42
CFD project idea John Cleveland Main CFD Forum 4 March 8, 2005 13:55

All times are GMT -4. The time now is 19:55.