"$CourantFactor" 修訂間的差異

出自 DDCC TCAD TOOL Manual
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Where ''c'' is the light speed in the vacuum, you can see more details in Eq. 4.60. <br>
 
Where ''c'' is the light speed in the vacuum, you can see more details in Eq. 4.60. <br>
The default value is 0.999999. <br>
+
The default value is 0.999999. <br><br>
 
'''Note:''' ''S'' is not equal to the courant number.
 
'''Note:''' ''S'' is not equal to the courant number.
 
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=='''Example'''==
 
=='''Example'''==

於 2018年7月12日 (四) 09:54 的修訂

Format

$CourantFactor
 S                // where S is an floating point and \begin{smallmatrix}{\color{OliveGreen}S\ \leq\ 1.0}\end{smallmatrix}.

\Delta t = \frac{S}{c\sqrt{\frac{1}{{\Delta x}^2}+\frac{1}{{\Delta y}^2}+\frac{1}{{\Delta z}^2}}}

Where c is the light speed in the vacuum, you can see more details in Eq. 4.60.
The default value is 0.999999.

Note: S is not equal to the courant number.

Example

$CourantFactor
 0.999

Then S will be 0.999.

Example

$CourantFactor
 3    1500e-9

This means the program has 2 objects in the simulation.