To study an influence of heterogeneity of oncoming supersonic flow on heat flux appearing on a blunt cylinder,
an experiment was conducted in the laboratory of gas dynamics SPbSU. The heterogeneity of the incoming
supersonic flow was achieved by introduction of a thin jet of helium in the main stream of air.
The result of interaction of density heterogeneity and shock layer on a blunt cylinder showed a change in
heat flux and drag.