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Overflow Simulations of Unmanned Aircraft SystemsNational airspace, the management for access and operation of these vehicles is required. This management is being developed under the unmanned aircraft system traffic management system (UTM) program. To determine the aerodynamic characteristics of drones, wind tunnel experiments and computation fluid dynamic (CFD) analysis have been conducted. These experiments and analyses are undertaken to understand the flight capabilities of these vehicles in variable head and cross wind conditions. The results of these investigations will provide metrics for the safe operation of these vehicles in and around civil populations and in urban settings. The focus of this paper is to model a drone installed in a wind tunnel for varying pitch attitudes and rotor rpm settings. Specifically, the IRIS drone is modeled in the NASA-Ames 7x10 ft. W/T. The tunnel mounting hardware and the tunnel enclosure are modeled with the IRIS drone geometry. The rotors of the drone are modeled using two methodologies: a rotor disk model and individual blade representations. The results of the analysis are compared with available experimental data to validate the computational approach.
Document ID
20190001877
Acquisition Source
Ames Research Center
Document Type
Presentation
Authors
Stremel, Paul M. (Science and Technology Corp. Moffett Field, CA, United States)
Ahmad, Jasim U. (NASA Ames Research Center Moffett Field, CA, United States)
Date Acquired
March 26, 2019
Publication Date
January 7, 2019
Subject Category
Aerodynamics
Report/Patent Number
ARC-E-DAA-TN64165
Meeting Information
Meeting: AIAA Science and Technology Forum and Exposition 2019
Location: San Diego, CA
Country: United States
Start Date: January 7, 2019
End Date: January 11, 2019
Sponsors: American Institute of Aeronautics and Astronautics (AIAA)
Funding Number(s)
CONTRACT_GRANT: NNA16BD60C
Distribution Limits
Public
Copyright
Public Use Permitted.

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