University of San Antonio Staff (Texas, USA) and the American Southwest Research Institute received an order to study the movement of objects at hypersonic speeds. According to recent reports, these studies were commissioned by the US military, which is going to get hypersonic weapons.
The work is carried out in the laboratory under the direction of Christopher Combs and Nicholas Muchke.
Nicolas Muske:
The goal is, to ultimately make complete aerodynamic measurements in a truly representative hypersonic environment. These measurements will help develop next-generation hypersonic objects..
celebrated, that an important research phase is, which is related to the study of air parameters, which is in contact with the object, moving at speeds over 5 Makhov (this is hypersonic speed). Researchers remind, that at such speeds of the object, the air in contact with it begins to disintegrate into molecules, which can subsequently line up into new connections. So, decomposition of air into nitrogen and oxygen molecules is noted, lining up in various configurations at high temperatures.
Researchers talked about the method:
We carried out the first stage of research in the engineering laboratory, using a two-stage system of light gas cannons, which simulates the conditions of hypersonic flight and allows you to obtain images of objects in hypersonic flight. When we launch an object at hypersonic speeds, the air around him starts to collapse. Temperature, which in this case arises, may exceed the surface temperature of the sun. The configuration is being built, whose parameters allow us to track laser beams, which we suggest, what used to be an air mass.
noted, what wednesday, generated when an object is flying at hypersonic speeds, absorbs laser radiation more intensively. Then there is a glow of different wavelengths. On this basis,, as stated, you can build mathematical and physical models of hypersonic motion, which will allow you to select the right materials for effective flight at hypersonic speeds.
From a statement by Christopher Combs:
We hope to measure the pressure, ambient temperature and density, which will ultimately lead to a truly representative picture of the hypersonic flight environment, which is extremely difficult to study in real conditions.
celebrated, that some of the experiments are carried out in a Ludwig tube with a high-speed diaphragm. Maximum speeds, for which experiments were carried out, in the American laboratory were 6-7 M. Notably, that Ludwig's trumpet – far from super modern invention. It was developed in Germany in the mid-1950s.. It conducted experiments to simulate “behavior” parts of aircraft in different countries, by turbulence. Judging by the statements of American scientists, the Ludwig tube does not lose its relevance even with modern research in the field of hypersound.
