USA As Represented by Secretary of the Navy

Warren Kendrick Jaul

Kenneth Jay Wilson

Gerhard Willms Thielman

Michael C Vogt

Robert G Burman

Jack M Pakulak

Shannon L Fitzpatrick

Ronald Schultz

Rodney M Harris

A supersonic combustion apparatus including a fixed geometric nozzle having a converging area, throat, and a diverging area, at least one movable combination of a fuel injector and an oxygen injector where the combined fuel injector and the oxygen injector is located within the divergent area of the fixed geometric nozzle, and an exit plane adjacent and downstream to the diverging area. The exit plane Mach speed is varied by heat addition in the diverging area by introduction of a combustible fuel through the fuel injector and oxygen through the oxygen injector and then axially aligning and positioning the combination of the fuel injector and the oxygen injector along the length of the diverging area to obtain a stabilized flame at the exit plane.

Variable supersonic mach number air heater utilizing supersonic combustion

The invention disclosed herein provides a subsonic wind tunnel capable for accurately maintaining a desired Mach number, pressure and temperature for use in aerothermal testing of materials. The invention allows the Mach number to be precisely controlled in the test section of the wind tunnel by employing a restricted outlet acting as a sonic throat for the wind tunnel. In the preferred embodiment, the restricted outlet is constructed to be variable in cross sectional area allowing a range of Mach numbers to be tested. The variable outlet is varied during the operation of the wind tunnel so that an actual trajectory with changing Mach numbers, pressure, and temperature is simulated.

Low cost wind tunnel for supersonic and hypersonic aerothermal testing

A process for indicating the likelihood of cook-off for energetic materials by calculating the heat flux and chemical venting relative to known crial parameters for the energetic materials. The process further may include an alarm.

Munitions cook-off warning system

Growing community of inventors

Ridgecrest, CA, United States of America

Warren Kendrick Jaul