Confluence of three shock waves for transverse shocks and shocks in an aligned MHD field

The paper studies the confluence of three shock waves meeting at a point, in an ideally conducting perfect gas, for transverse shocks and shocks in an aligned MHD field. The method used involves the hodograph mapping technique. A presentation of the shock polars in the total pressure P*, flow deflexion δ(δ, P*/P*₀) plane is thus given. The algebraic complexity of the problem prohibits discussion of an alternative mathematical approach.