Compressible Flow

A colour schlieren visualization of a supersonic jet with sound-suppressing tabs at the nozzle.
Students: Jens Kanje, Nicholas Johnston
A colour schlieren visualization of a supersonic jet from an aerospike nozzle.
Students: Jens Kanje, Ryan Brunet, Joshua Lynch
A colour schlieren visualization of a supersonic jet.
Students: Jens Kanje
A colour schlieren visualization of a supersonic jet with sound-suppressing chevrons at the nozzle.
Students: Jens Kanje, Nathan Humphrey
A schlieren image of the transverse density gradient for a supersonic impinging jet.
A colour schlieren visualization of a supersonic jet with sound-suppressing chevrons at the nozzle.
Students: Jens Kanje, Nathan Humphrey
Schlieren image of the axial density gradient of flow into a Hartmann-Sprenger tube.
An HS tube creates an incredibly powerful acoustic resonance. This resonance can be so powerful that it even superheats the air inside the tube to 900 degrees in a matter of seconds!

Students:Nicholas Mason-Smith, Corey Leb
Schlieren image of twin supersonic jet impingement.
Student: Marcus Wong
A time averaged transverse density gradient of a highly underexpanded supersonic jet. A large Mach disk is visible at the first shock cell.
Fluctuations in transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Fluctuations in axial density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Time averaged transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Fluctuations in transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Time averaged density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Fluctuations in axial density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Fluctuations in transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Axial density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Fluctuations in axial density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Fluctuations in axial density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Fluctuations in transverse density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Fluctuations in axial density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Transverse mean density gradient for a supersonic nozzle with noise suppressing chevrons.
Student: Nathan Humphrey
Schlieren of a supersonic jet. The Mach wave radiation and sound production are both visible.
Fluctuations in transverse density gradient for a supersonic jet.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Fluctuations in density gradient for a supersonic nozzle with noise suppressing chevrons.
The brightness of each point indicates how much fluctuation in density gradient was observed at that point (brighter means more fluctuation)
Student: Nathan Humphrey
Schlieren image of the transverse gradient of a supersonic impinging jet. Impingement plate is to the right of the image edge.
Mean transverse density gradient for a supersonic nozzle with noise suppressing tabs.

Student: Nick Johnston
Instantaneous schlieren image of axial density gradient for supersonic jet impinging onto a cylinder. Acoustic waves are visible as thin curved white lines travelling back to the nozzle.

Student: Nick Mason-Smith