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Wind tunnel investigation of an STOL aircraft model. STOL zenki mokei-fudo shiken. ; Engine nacelle keijo koka

Technical Report:

Abstract

The nacelle shape of a mimic engine mounted on the wind tunnel test model for an STOL aircraft developed by the National Aerospace Laboratory has much larger length than in the nacelle of a scale reduced to 8% of an actual engine, and the shape below the nacelle is different. Therefore, in order to estimate the air force in the actual aircraft from the aerodynamic data obtained in a wind tunnel test, the data are corrected by using differences in aerodynamic loads (estimated values) applied on the mimic engine and the actual engine. For the purpose of discussing the reasonability of this correction, an 8%-scale flow through nacelle with the same shape as in the actual aircraft (the actual aircraft type) and a flow through nacelle for a wind tunnel testing model of the experimental STOL aircraft were fabricated and wind tunnel tests were performed. These results were compared with the corrected results of the mimic engine wind tunnel test. As a result, it was made clear that the force data have been corrected excessively, and the moments have been corrected considerably well. 7 refs., 32 figs., 7 tabs.
Authors:
Publication Date:
Jan 01, 1993
Product Type:
Technical Report
Report Number:
NAL-TM-653
Reference Number:
NEDO-94-930019; EDB-94-082794
Subject:
42 ENGINEERING; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; AIRCRAFT; AIRPORTS; PERFORMANCE TESTING; SCALE MODELS; SPACE DEPENDENCE; AERODYNAMICS; CORRECTIONS; EXPERIMENTAL DATA; NOSE CONES; WIND TUNNELS; MOMENTUM TRANSFER; SIMULATORS; STRUCTURAL MODELS; TURBOFAN ENGINES; ANALOG SYSTEMS; DATA; ENGINES; EQUIPMENT; FLUID MECHANICS; FUNCTIONAL MODELS; HEAT ENGINES; INFORMATION; INTERNAL COMBUSTION ENGINES; MACHINERY; MECHANICS; NUMERICAL DATA; TESTING; TUNNELS; TURBOMACHINERY; UNDERGROUND FACILITIES; 420400* - Engineering- Heat Transfer & Fluid Flow; 320201 - Energy Conservation, Consumption, & Utilization- Transportation- Air & Aerospace
OSTI ID:
7207344
Research Organizations:
National Aerospace Lab., Chofu, Tokyo (Japan)
Country of Origin:
Japan
Language:
Japanese
Availability:
Available from National Aerospace Laboratory, 44-1, Shindaiji Higashicho 7-chome, Chofu-City, Tokyo, Japan
Submitting Site:
NEDO
Size:
Pages: (23 p)
Announcement Date:

Technical Report:

Citation Formats

Not Available. Wind tunnel investigation of an STOL aircraft model. STOL zenki mokei-fudo shiken. ; Engine nacelle keijo koka. Japan: N. p., 1993. Web.
Not Available. Wind tunnel investigation of an STOL aircraft model. STOL zenki mokei-fudo shiken. ; Engine nacelle keijo koka. Japan.
Not Available. 1993. "Wind tunnel investigation of an STOL aircraft model. STOL zenki mokei-fudo shiken. ; Engine nacelle keijo koka." Japan.
@misc{etde_7207344,
title = {Wind tunnel investigation of an STOL aircraft model. STOL zenki mokei-fudo shiken. ; Engine nacelle keijo koka}
author = {Not Available}
abstractNote = {The nacelle shape of a mimic engine mounted on the wind tunnel test model for an STOL aircraft developed by the National Aerospace Laboratory has much larger length than in the nacelle of a scale reduced to 8% of an actual engine, and the shape below the nacelle is different. Therefore, in order to estimate the air force in the actual aircraft from the aerodynamic data obtained in a wind tunnel test, the data are corrected by using differences in aerodynamic loads (estimated values) applied on the mimic engine and the actual engine. For the purpose of discussing the reasonability of this correction, an 8%-scale flow through nacelle with the same shape as in the actual aircraft (the actual aircraft type) and a flow through nacelle for a wind tunnel testing model of the experimental STOL aircraft were fabricated and wind tunnel tests were performed. These results were compared with the corrected results of the mimic engine wind tunnel test. As a result, it was made clear that the force data have been corrected excessively, and the moments have been corrected considerably well. 7 refs., 32 figs., 7 tabs.}
place = {Japan}
year = {1993}
month = {Jan}
}