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Author Topic: Airdrag  (Read 4490 times)
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ahmedelshfie
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on: June 16, 2010, 12:50:52 am » posted from:SAO PAULO,SAO PAULO,BRAZIL

This following applet is Airdrag
Original project Airdrag
Thanks to our prof Hwang for him help he always help.

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Press the Alt key and the left mouse button to drag the applet off the browser and onto the desktop. This work is licensed under a Creative Commons Attribution 2.5 Taiwan License
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* airdrag5.gif (18.14 KB, 1012x426 - viewed 322 times.)
« Last Edit: June 16, 2010, 06:45:05 pm by ahmedelshfie » Logged
ahmedelshfie
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Reply #1 on: June 26, 2010, 12:59:11 am » posted from:SAO PAULO,SAO PAULO,BRAZIL

In fluid dynamics, drag (sometimes called air resistance or fluid resistance) refers to forces that oppose the relative motion of an object through a fluid (a liquid or gas). Drag forces act in a direction opposite to the oncoming flow velocity.
Unlike other resistive forces such as dry friction, which is nearly independent of velocity, drag forces depend on velocity.

For a solid object moving through a fluid, the drag is the component of the net aerodynamic or hydrodynamic force acting opposite to the direction of the movement. The component perpendicular to this direction is considered lift. Therefore drag opposes the motion of the object, and in a powered vehicle it is overcome by thrust.

In astrodynamics, and depending on the situation, atmospheric drag can be regarded as an inefficiency requiring expense of additional energy during launch of the space object or as a bonus simplifying return from orbit.


* Inclinedthrow.gif (453.11 KB, 400x288 - viewed 302 times.)
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ahmedelshfie
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Reply #2 on: July 17, 2010, 12:37:46 am » posted from:SAO PAULO,SAO PAULO,BRAZIL

A new version from Airdrag by Ahmed Help in code prof lookang.

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Full screen applet or Problem viewing java?Add http://www.phy.ntnu.edu.tw/ to exception site list
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  • Please feel free to post your ideas about how to use the simulation for better teaching and learning.
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  • Upload worksheets as attached files to share with more users.
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Reply #3 on: August 17, 2010, 11:46:51 pm » posted from:Uberaba,Minas Gerais,Brazil

This applet is Projectile Motion with Air Drag design by prof Hwang,, Modified by Ahmed.
Applet design using JDK1.0.2.
Original applet on Projectile Motion with Air Drag
I upload zip file,, after download unzip file and access applet.
Enjoy!


* dragForce.gif (8.65 KB, 548x409 - viewed 303 times.)

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"If I have a thousand ideas and only one turns out to be good, I am satisfied." ..."Alfred Nobel(1833-1896, Swedish inventor, chemist, philanthropist)"
 
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