Difference between revisions of "Template:VT"
From Kerbal Space Program Wiki
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<includeonly>{{#expr: <!-- | <includeonly>{{#expr: <!-- | ||
--> ( <!-- | --> ( <!-- | ||
| − | --> 2 * {{G}} * {{ | + | --> 2 * {{G}} * {{Body data|{{{planet|{{{1}}}}}}|mass}} <!-- |
--> / ( <!-- | --> / ( <!-- | ||
| − | --> ({{{alt|{{{2}}}}}} + {{ | + | --> ({{{alt|{{{2}}}}}} + {{Body data|{{{planet|{{{1}}}}}}|radius}} <!-- |
--> )^2 * <!-- | --> )^2 * <!-- | ||
| − | --> ( {{BodyData|{{{planet|{{{1}}}}}}|pressure}} * e^(-{{{alt|{{{2}}}}}}/{{ | + | --> ( {{BodyData|{{{planet|{{{1}}}}}}|pressure}} * e^(-{{{alt|{{{2}}}}}}/{{Body data|{{{planet|{{{1}}}}}}|scale height}}) <!-- |
--> ) * (1.2230948554874 * 0.008) * 0.2 * 1 <!-- | --> ) * (1.2230948554874 * 0.008) * 0.2 * 1 <!-- | ||
--> ) <!-- | --> ) <!-- | ||
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This template calculates terminal velocity of an object given the planet and the altitude from the planet's surface. It uses {{Tl|BodyData}} with the properties <tt>mass</tt>, <tt>radius</tt>, <tt>pressure</tt> and <tt>scale height</tt>. | This template calculates terminal velocity of an object given the planet and the altitude from the planet's surface. It uses {{Tl|BodyData}} with the properties <tt>mass</tt>, <tt>radius</tt>, <tt>pressure</tt> and <tt>scale height</tt>. | ||
| − | {{Parameter | + | {{Parameter table|name=both|parameters= |
| − | {{Parameter | + | {{Parameter row|1|name2=planet|The celestial body}} |
| − | {{Parameter | + | {{Parameter row|2|name2=alt|The altitude at which the terminal velocity should be calculated.}} |
| − | {{Parameter | + | {{Parameter row|3|name2=round|Round to the given number of decimal places.|Not set/Doesn't round}} |
}} | }} | ||
Revision as of 13:21, 27 August 2014
| Usage | Produces |
|---|---|
{{VT | planet = Kerbin | alt = 0}} |
100.1288989294 |
This template calculates terminal velocity of an object given the planet and the altitude from the planet's surface. It uses {{BodyData}} with the properties mass, radius, pressure and scale height.
| #/Name | Optional | Description | Default |
|---|---|---|---|
| 1 or planet | No | The celestial body | |
| 2 or alt | No | The altitude at which the terminal velocity should be calculated. | |
| 3 or round | Yes | Round to the given number of decimal places. | Not set/Doesn't round |
(M is the mass of the body, r is the body's radius, p0 is pressure at 0 m altitude (“sea level”), a is the altitude above sea level and H is the scale height)
The formula assumes that the coefficient of drag (d) is 0.2 and is used from the atmosphere article.
