Chapter

Shock Waves

pp 565-570

Drag reduction by a forward facing aerospike for a large angle blunt cone in high enthalpy flows

  • V. KulkarniAffiliated withDepartment of Aerospace Engineering, Indian Institute of science
  • , P.S. KulkarniAffiliated withDepartment of Aerospace Engineering, Indian Institute of science
  • , K.P.J. ReddyAffiliated withDepartment of Aerospace Engineering, Indian Institute of science

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Summary

Drag reduction studies are conducted using a flat disc tipped aerospike for a 120-degree apex angle blunt cone model in high enthalpy flows. Accelerometer based force balance is used for the drag force measurement in the newly established free piston driven shock tunnel, HST3. Drag reduction upto about 58 percent has been achieved for Mach 8 flow of 5 MJ/kg specific enthalpy at zero degree angle of attack.