NTNUJAVA Virtual Physics Laboratory
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Easy Java Simulations (2001- ) => dynamics => Topic started by: ahmedelshfie on May 26, 2010, 02:30:46 am



Title: Satellite motion
Post by: ahmedelshfie on May 26, 2010, 02:30:46 am
This following applet is Satellite motion
Created by prof Hwang Modified by Ahmed
Original project Satellite motion (http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=517.0)

You will find two simulations for satellite motion due to the gravitation force between satellite and massive object(center one with cyan color).
Which one is the correct simulation? The one will rotate or another one which does not rotate?

You can pause the simulation. Change the location or velocity of the satellite when velocity vector is visiable, then press 'play' button again. Enjoy it!


Title: Re: Satellite motion
Post by: lookang on May 26, 2010, 07:17:02 pm
the show force seems to be not pointing towards the centre of the motion, please check your equation to see if the physics is correct  ;D


Title: Re: Satellite motion
Post by: ahmedelshfie on May 26, 2010, 07:25:11 pm
I don't know prof because I'm no change any thing in equations that prof Hwang post in XML source code    ???



Title: Re: Satellite motion
Post by: Fu-Kwun Hwang on May 26, 2010, 09:29:40 pm
It should be fine if you change the numerical method to Ringe-Kutta 4th order method.


Title: Re: Satellite motion
Post by: ahmedelshfie on May 26, 2010, 11:25:27 pm
Is fixed now prof