Patent ID: 11946832
Assignee: UNITED STATES OF AMERICA AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 18:
19. A method of testing a test object in a wind tunnel, the method comprising:
providing an air source in fluid communication with an inlet of a vapor cloud generator having a chamber, the chamber having a sub-ohm resistive heating element to vaporize fluid from a reservoir;
delivering air from the air source to the inlet of the vapor cloud chamber;
applying less than 200 W of power to the resistor whereby the sub-ohm resistive heating element vaporizes a vapor cloud generating liquid disposed in a reservoir into a vapor cloud, the reservoir being in fluid communication with the inlet and in fluid communication with an exhaust; evacuating the vapor cloud from the chamber to the exhaust;
directing the vapor cloud through the exhaust to an operating wind tunnel; the operating wind tunnel having a test section with a test object therein, the test object being exposed to wind in the test section; and
injecting the vapor cloud from the exhaust to a predetermined position juxtaposed with the test section.