Experimental Black Hole Evaporation?

This is a paper written by W. G. Unruh in 1981 which is the birth of Analog Gravity. We know that perturbations in a static fluid is described by a wave equation with speed of sound. Unruh asks that if the fluid is not static (but still non-rotational), where does this wave equation go? he shows that although the wave equation form is lost, it can be revived in some metric! Just analogous to the curve path taken by a light ray in the presence of gravitational field. He then shows that the dumb hole (analogous to black hole) provide a Hawking radiation with thermal spectrum just as the actual black holes.

This was a part of my studies about Analog Gravity due to my project.