  An experimental investigation was carried out to study heat transfer rates in
a high-temperature, high-pressure region generated using the shock focusing
technique. A shock tube test facility with a specially designed spherically
converging test section was used in the present study. Two test cases, a shock
of initial strength Mach 2 and Mach 4, were investigated. An in-house 10
developed K -type thermocouple was used in the present investigations, and the
measured heat transfer rates were of the order of KW/cm2.
