The utilization of image acquisition, image processing and skin friction computations has been developed to support skin friction measurements at the Ludwieg-tube facility at DLR. Verification of the oil-film-interferometry technique with analytical tests at different flows with given shear stress distributions showed its advantages and handicaps for skin friction measurements in 3D gradient flows. The abilities of the thin oil film technique with its application in a short duration wind tunnel were demonstrated on some examples. The comparison of experimental results obtained by different optical skin friction methods demonstrated good agreement
An improved system for measuring aerodynamic skin friction which uses a dual-laser-beam oil-film int...
A new oil-fringe imaging system skin friction (FISF) technique to measure skin friction on wind tunn...
As a part of the DLR VicToria Project, the Global Luminescent Oil Film Skin-friction Field Estimatio...
The utilization of image acquisition, image processing and skin friction computations has been devel...
The utilization of image acquisition, image processing and skin friction computations has been devel...
Prediction of boundary layer transition is important for the design of hypersonic aircrafts. The stu...
A low-cost setup for oil-film interferometry with white light was used to determine the flow topolog...
A method is described for monitoring the changing thickness of a thin oil film subject to an aerodyn...
As aircraft are designed to a greater extent on computers, the need for accurate and fast CFD algori...
The NASA Grant NAG2-261 was initiated to support a program of research to study complex flows that o...
Accurate skin friction measurements are indispensable in the design of more efficient aerodynamic ve...
A portable dual-laser-beam interferometer that nonintrusively measures skin friction by monitoring t...
The movement of a thin oil film on the surface of fast-rotating disks or propeller blades is analyz...
Recent improvements in three techniques for measuring skin friction in two- and three-dimensional tu...
The movement of the thin oil film placed on the surface of fast-rotating disks or propeller blades i...
An improved system for measuring aerodynamic skin friction which uses a dual-laser-beam oil-film int...
A new oil-fringe imaging system skin friction (FISF) technique to measure skin friction on wind tunn...
As a part of the DLR VicToria Project, the Global Luminescent Oil Film Skin-friction Field Estimatio...
The utilization of image acquisition, image processing and skin friction computations has been devel...
The utilization of image acquisition, image processing and skin friction computations has been devel...
Prediction of boundary layer transition is important for the design of hypersonic aircrafts. The stu...
A low-cost setup for oil-film interferometry with white light was used to determine the flow topolog...
A method is described for monitoring the changing thickness of a thin oil film subject to an aerodyn...
As aircraft are designed to a greater extent on computers, the need for accurate and fast CFD algori...
The NASA Grant NAG2-261 was initiated to support a program of research to study complex flows that o...
Accurate skin friction measurements are indispensable in the design of more efficient aerodynamic ve...
A portable dual-laser-beam interferometer that nonintrusively measures skin friction by monitoring t...
The movement of a thin oil film on the surface of fast-rotating disks or propeller blades is analyz...
Recent improvements in three techniques for measuring skin friction in two- and three-dimensional tu...
The movement of the thin oil film placed on the surface of fast-rotating disks or propeller blades i...
An improved system for measuring aerodynamic skin friction which uses a dual-laser-beam oil-film int...
A new oil-fringe imaging system skin friction (FISF) technique to measure skin friction on wind tunn...
As a part of the DLR VicToria Project, the Global Luminescent Oil Film Skin-friction Field Estimatio...