Riemann invariant
= Riemann invariant
{c}
{wiki}
For one-dimensional homentropic ideal-gas flow,
$$
R_\pm=u\pm\frac{2(c-c_0)}{\gamma-1}
$$
is constant along the characteristic $dx/dt=u\pm c$.
= Riemann invariant
{c}
{wiki}
For one-dimensional homentropic ideal-gas flow,
$$
R_\pm=u\pm\frac{2(c-c_0)}{\gamma-1}
$$
is constant along the characteristic $dx/dt=u\pm c$.