underexpanded
adjEtymology From under- + expanded.
1
Less than usually expanded
- The setup makes use of LEDs, pulsed with high currents to increase the optical output to sufficient levels, exploiting the advantages of LED light over conventional light sources. As a test-case we study the interaction of a Mach 1.7 cross flow and a transverse underexpanded jet, which is commonly studied considering the mixing and combustion in scramjet engines.2016, Ella Giskes, Ruben A. Verschoof, Frans B. Segerink, Cornelis H. Venner, “Schlieren study of a sonic jet injected into a supersonic cross flow using high-current pulsed LEDs”, in arXiv: