If they are discrete, and do not mix, can we call the secondary flow Ram Effect?
Also, since there is no fuel added to the Ram effect, and therefore no Ignition, can we actually call it a RamJet, partial or otherwise? If CliveL is busy, peter kent, can you help?
Only by a gross distortion of the usual understanding of those terms. The secondary flow start life with some pressure above atmospheric by virtue of the intake shock system, but it only gets some fraction of the STATIC pressure at the intake throat and nothing whatsoever from the subsonic diffuser part of the intake. As I understand the term a ramjet cashes the temperature rise accompanying flow compression to give a sufficiently high temperature to provoke combustion of the fuel. The bleed flow gets nowhere near this condition.
No way the bleed flow can be regarded as any form of ramjet.