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Global Skin Friction Diagnostics In Complex Separated Flows, Sudesh A. Woodiga
Global Skin Friction Diagnostics In Complex Separated Flows, Sudesh A. Woodiga
Masters Theses
This work describes the application of a global luminescent oil film skin friction meter to quantitative global skin friction diagnostics in complex separated flows. The development of this technique is based on the relationship between the oil film thickness and luminescent intensity of an oil film mixed with a luminescent dye. The projected thin oil film equation is given to relate the normalized luminescent intensity with skin friction. The basis for this technique is the variational solution for the thin oil film equation on the image plane. The variational formulation with a smoothness constraint on skin friction is proposed to …