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Simulators

Posted: Mon Jan 12, 2009 5:47 pm
by WRA2
Post links to simulators in this thread. Please include a brief description stating weather it is freeware, shareware, commercial (indicate if a trial period is available) or home brew. These links will be compiled and placed on the WRA2 links page for easy access. We can also host downloads for simulators if needed.

Re: Simulators

Posted: Tue Jan 13, 2009 9:34 pm
by Cloud Dancers
I guess I get to be first.

http://ourworld.compuserve.com/homepage ... orckt.htm.

DOD based water rocket simulator. Works very well with DOS based systems like WIN98. Some functions (like 3D graphing) in NT based systems like XP do not work well. Has anyone tried this on VISTA yet? Very accurate simulator. I recommend it.

Re: Simulators

Posted: Thu May 21, 2009 11:37 am
by Scorpion_XIII

Re: Simulators

Posted: Fri Oct 23, 2009 1:47 pm
by The Sky Dart
http://www.et.byu.edu/~wheeler/benchtop/sim.php

This is a very interesting simulator with extremely detailed theory background.

Re: Simulators

Posted: Fri Oct 23, 2009 2:22 pm
by The Sky Dart
The Sky Dart wrote:http://www.et.byu.edu/~wheeler/benchtop/sim.php

This is a very interesting simulator with extremely detailed theory background.
Sorry, I've failed to mention that theoretical calculations are confirmed by experimental data: http://www.et.byu.edu/~wheeler/benchtop/thrustcurve.php

Re: Simulators

Posted: Mon Oct 26, 2009 3:55 pm
by SaskAlex
Cloud Dancers wrote:I guess I get to be first.

http://ourworld.compuserve.com/homepage ... orckt.htm.

DOD based water rocket simulator. Works very well with DOS based systems like WIN98. Some functions (like 3D graphing) in NT based systems like XP do not work well. Has anyone tried this on VISTA yet? Very accurate simulator. I recommend it.

Compuserve has been shut down. Does this simulator have a new home?

Re: Simulators

Posted: Mon Oct 26, 2009 4:25 pm
by rockets-in-brighton
SaskAlex wrote:
Cloud Dancers wrote:I guess I get to be first.

http://ourworld.compuserve.com/homepage ... orckt.htm.

DOD based water rocket simulator. Works very well with DOS based systems like WIN98. Some functions (like 3D graphing) in NT based systems like XP do not work well. Has anyone tried this on VISTA yet? Very accurate simulator. I recommend it.

Compuserve has been shut down. Does this simulator have a new home?
I posted a copy of the zipfile a week or two ago, must be in this thread or nearby?

Re: Simulators

Posted: Mon Oct 26, 2009 4:56 pm
by rockets-in-brighton
SaskAlex wrote:
http://ourworld.compuserve.com/homepage ... orckt.htm.

Compuserve has been shut down. Does this simulator have a new home?
Here:

http://www.wra2.org/forum/viewtopic.php?f=3&t=576

Re: Simulators

Posted: Tue Oct 27, 2009 6:39 pm
by SaskAlex
rockets-in-brighton wrote:
SaskAlex wrote:
http://ourworld.compuserve.com/homepage ... orckt.htm.

Compuserve has been shut down. Does this simulator have a new home?
Here:

http://www.wra2.org/forum/viewtopic.php?f=3&t=576

Good to know, thanks

Re: Simulators

Posted: Wed Jan 20, 2010 2:59 pm
by quique uy
Openrocket is open source, you may enter the densities of construction materials and thicknesses. That lets you know the CG and CP.
I do not think you can use this as a flight simulator because it was made for solid fuel rocket, but if you measure the thrust and the time a of water-rocket you might be able to enter such data as if it was a custom engine and so graph it

and very important ... is FREE :D

Openrocket es de código abierto , te permite ingresar las densidades de los materiales de construcción y espesores. Eso te permite saber el CG y CP.
No creo que se pueda usar como simulador de vuelo porque está hecho para cohetes de combustible sólido, pero si se mide el empuje y el tiempo de propulsión de un cohete de agua tal vez se podría ingresar ese dato como el de un motor personalizado y así graficarlo

y muy importante... es GRATIS :D


http://openrocket.sourceforge.net/

Un Abrazo

Re: Simulators

Posted: Mon Sep 07, 2015 11:36 pm
by NeptuneRockets
This is a web page it runs on tablets and computers
http://cjh.polyplex.org/rockets/simulation/

Re: Simulators

Posted: Tue May 21, 2019 4:30 am
by voytex
Hi, I'm new here. Recently I became interested in water rockets and how does they actually work. I couldn't find any easy to use and comprehensible online simulator, so I decided to create one. After several months of work in free time I created simulator in JavaScript and deployed it on this address:
www.waterrocketsimulator.eu.
I'm still a beginner in programming and the page isn't yet well optimized for all browsers and devices (works best on desktops, on chrome or firefox). Although I hope this simulator will be considered as useful and quite accurate.
I'm open to your opinions about it and suggestions about developing it.

Re: Simulators

Posted: Wed May 22, 2019 4:24 pm
by Afrom1
voytex wrote:
Tue May 21, 2019 4:30 am
Hi, I'm new here. Recently I became interested in water rockets and how does they actually work. I couldn't find any easy to use and comprehensible online simulator, so I decided to create one. After several months of work in free time I created simulator in JavaScript and deployed it on this address:
www.waterrocketsimulator.eu.
I'm still a beginner in programming and the page isn't yet well optimized for all browsers and devices (works best on desktops, on chrome or firefox). Although I hope this simulator will be considered as useful and quite accurate.
I'm open to your opinions about it and suggestions about developing it.
nice and pretty simulator but it seems to be a bit of on the predicted height on a rocket that normally flyes 90m to 100m it is predicted to fly 150m. is it possible you can share the math behind it. normally uses http://polyplex.org/rockets/simulation/ and it is generally a bit on the hie side for my rockets

Re: Simulators

Posted: Wed Jul 24, 2019 11:01 am
by anachronist
Afrom1 wrote:
Wed May 22, 2019 4:24 pm
voytex wrote:
Tue May 21, 2019 4:30 am
Hi, I'm new here. Recently I became interested in water rockets and how does they actually work. I couldn't find any easy to use and comprehensible online simulator, so I decided to create one. After several months of work in free time I created simulator in JavaScript and deployed it on this address:
www.waterrocketsimulator.eu.
I'm still a beginner in programming and the page isn't yet well optimized for all browsers and devices (works best on desktops, on chrome or firefox). Although I hope this simulator will be considered as useful and quite accurate.
I'm open to your opinions about it and suggestions about developing it.
nice and pretty simulator but it seems to be a bit of on the predicted height on a rocket that normally flyes 90m to 100m it is predicted to fly 150m. is it possible you can share the math behind it. normally uses http://polyplex.org/rockets/simulation/ and it is generally a bit on the hie side for my rockets
Nice! I should put mine in Javascript format. Currently it's an Excel workbook that I converted to Google Sheets so others can use it online.

Yes, the www.waterrocketsimulator.eu simulator predicts the apogee too high. I plugged in numbers for a typical 2L bottle, and got 145m whereas my own simulator gets 116m. I looked at the Javascript, and the math looks good overall, similar to my simulator, but it's missing some things as far as I can tell:
  • airflow after water is exhausted is choked at the speed of sound, slowing down the exhaust and reducing the air thrust
  • speed of sound changes with temperature
  • humidity of the pressurized air in the bottle mitigates the temperature drop and affects pressure
My own simulator accounts for these and additional things like atmospheric conditions. My articles on the math, and my simulator, can be found from this page: https://www.nablu.com/p/water-rocketry.html

-Alex