Research Interests



Taylor-Couette Flow:
Investigation of the stability of Taylor-Couette flow with a superimposed axial flow and a porous inner wall boundary condition. Fundamental measurements of the velocity field in Taylor-Couette flow. Theoretical stability of Taylor-Couette flow with radial flow.

Separation Processes:
Measurements of two-phase Taylor Couette flow in a rotating filter separator. Development of a new technique using index-of-refraction-matched transparent particles permitting the simultaneous measurement of particle motion and fluid velocity using Pulsed Light Velocimetry.

Turbulent Boundary Layer Flow:
Measurements of the velocity field, wall pressure, and wall shear stress for the boundary layer on a cylinder in axial flow. Development of a model relating wall pressure events to bursts based on analysis of a direct numerical simulation database.

Instrumentation:
Development of calibration methods for hot-wire anemometry and initiation of the use of hearing aid microphones to measure wall pressure. Analysis of microphone resolution in wall pressure measurement. Development of an ultrasonic sensor for the determination of natural gas composition.

Jet Mixing:
Measurements of turbulent jet mixing in a tank and the flow of a confined jet a dead-end tube.


Return to Richard M. Lueptow Home Page
URL: http://www.mech.northwestern.edu/fac/lueptow/HTML/researchinterest.html