Lax-Friedrich flux (in fully conservative variables) for the Acoustic equation
| Type | Intent | Optional | Attributes | Name | ||
|---|---|---|---|---|---|---|
| real(kind=rk), | intent(in) | :: | left(4) |
The state on the face from its left limit (in conservative variables). |
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| real(kind=rk), | intent(in) | :: | right(4) |
The state on the face from its right limit (in conservative variables). |
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| type(atl_acoustic_type), | intent(in) | :: | acoustic |
Datatype for acoustic equation include all background data |
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| real(kind=rk), | intent(out) | :: | flux(4) |
Resulting flux for the left element (in conservative variables). |
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| integer, | intent(in) | :: | idir |
Direction of the flow, used for background velocity |