LOAD_THERMAL_BODY
Loads
*LOAD_THERMAL_BODY
"Optional title"
coid, entype, enid, cid${}_1$, $sf$, $t_{beg}$, $t_{end}$, cid${}_2$
"Optional title"
coid, entype, enid, cid${}_1$, $sf$, $t_{beg}$, $t_{end}$, cid${}_2$
Parameter definition
Variable
Description
coid
Command ID
entype
Entity type
enid
Entity identification number
cid${}_1$
$sf$
Curve scale factor
$t_{beg}$
Start time
$t_{end}$
End time
Description
This command is used to apply a thermal body load (power per unit volume).
$f_2$ is an optional CURVE or FUNCTION describing the exact total power of the heat source. It is needed in situations where the heat source described by $f_1$ (power/unit volume) is partially outside the body where the energy is to be deposited. The magnitude of $f_1$ is then scaled with a factor $\alpha$ in order to match the specified total power in $f_2$.
$\displaystyle{ \alpha \int_V f_1(\mathbf{x}, t) \mathrm{d}V = f_2(t)}$
$V$ is the body volume, $\mathbf{x}$ is a spatial coordinate and $t$ is the time. Hence, the heat power per unit volume $p$ deposited at a location $\mathbf{x}$ becomes:
$p = \alpha \cdot f_1(\mathbf{x}, t)$
