On Asymptotic Behavior of HLL-Type Schemes at Low Mach Numbers

Figure 4

The initial state of the dimensionless pressure field and the state after one period calculated by four schemes. (a) Initial state. (b) Result from Roe scheme. (c) Result from HLLEM scheme. (d) Result from LM-HLLEM scheme. (e) Result from LM-HLLEM2 scheme.

(a)

(b)

(c)

(d)

(e)