Calculation of Transonic Flow around Axisymmetric Inlets
The transonic flow around an axisymmetric inlet is calculated for a prescribed mass-flow ratio. The inlet consists of an initial part of arbitrary geometry, which is continued to downstream infinity as a straight, circular tube. With a sequence of conformal mappings and a final coordinate stretching, the whole exterior and interior flowfield is mapped to a rectangular domain in which the full inviscid transonic potential equation is solved using type-dependent line-relaxation. Comparisons of calculated pressure distributions are made with experimental results for various inlets and Mach numbers from 0.5 to 0.95 yielding very good agreement.