THE EFFECT OF AN INTENSE MAGNETIC FIELD ON ROCKET NOZZLE HEAT TRANSFER. PART 2. CRYOGENIC ELECTROMAGNET EXPERIMENTS.
Abstract
The report describes a theoretical and experimental investigation of the effect of an axial magnetic field on rocket nozzle heat transfer. The expected reduction in heat transfer was predicated on the anisotropy in the transport coefficients of a partially ionized gas in a magnetic field. Calculations of the electrical properties of the nozzle core and boundary layer gases were made using advanced chemical equilibrium and boundary layer heat transfer computer programs. The gas electrical conductivity and electron density decreased by a factor of ten in the turbulent boundary layer and by an even greater factor in the laminar sub-layer. A 5. 3-T magnetic field, generated by a force-cooled cryogenic electromagnet, failed to produce a detectable change in the heat transfer from the seeded hydrocarbon combustion gases to a water-cooled copper rocket nozzle wall. This result was insensitive to field direction. The boundary layer gases were insufficiently ionized for a measurable interaction with the magnetic field. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1965
- Accession Number
- AD0615734
Entities
People
- James B. Lee
- Leroy J. Krzycke
Organizations
- Naval Air Weapons Station China Lake