1: Definition of the cones used for the τ jet isolation.

What is an APU in a commercial airliner? - Quora

A proper framework for studying noise from jets with non-compact sources, Journal of Fluid Mechanics

4B70.20 Airplane Vapour Cones (Picture) - Demonstrations - Simon Fraser University

Cone cell - Wikipedia

Fluids, Free Full-Text

upload.wikimedia.org/wikipedia/commons/thumb/b/b7/

Venturi effect - Wikipedia

Diffractive imaging of a rotational wavepacket in nitrogen molecules with femtosecond megaelectronvolt electron pulses

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Experimental characterisation and data-driven modelling of unsteady wall pressure fields induced by a supersonic jet over a tangential flat plate, Journal of Fluid Mechanics

WHAT IS A VAPOUR CONE AND HOW IS IT CREATED?

Vapor cone - Wikipedia

Direct observation of the dead-cone effect in quantum chromodynamics