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A review of dynamic inflow and its effect on experimental correlationsA review is given of the relationship between experimental data and the development of modern dynamic-inflow theory. Some of the most interesting data, first presented 10 years ago at the Dynamic Specialist's Meeting, is now reviewed in light of the newer theories. These pure blade-flapping data correlate very well with analyses that include the new dynamic inflow theory, thus verifying the theory. Experimental data are also presented for damping with coupled inplane and body motions. Although inclusion of dynamic inflow is often required to correlate this coupled data, the data cannot be used to verify any particular dynamic inflow theory due to the uncertainties in modeling the inplane degree of freedom. For verification, pure flapping is required. However, the coupled data do show that inflow is often important in such computations.
Document ID
19860005823
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Gaonkar, G. H. (Indian Inst. of Science Bangalore., United States)
Peters, D. A. (Washington Univ. St. Louis, Mo., United States)
Date Acquired
August 12, 2013
Publication Date
November 1, 1985
Publication Information
Publication: NASA. Ames Research Center Rotorcraft Dynamics 1984
Subject Category
Aerodynamics
Accession Number
86N15293
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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