Design of Pitot-Static Tube Shapes and Their Influence on Airspeed Measurement Accuracy
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21260%2F24%3A00375281" target="_blank" >RIV/68407700:21260/24:00375281 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1061/JAEEEZ.ASENG-5578" target="_blank" >https://doi.org/10.1061/JAEEEZ.ASENG-5578</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1061/JAEEEZ.ASENG-5578" target="_blank" >10.1061/JAEEEZ.ASENG-5578</a>
Alternative languages
Result language
angličtina
Original language name
Design of Pitot-Static Tube Shapes and Their Influence on Airspeed Measurement Accuracy
Original language description
The conventional pitot-static tube's accuracy in measuring indicated airspeed is compromised by its longitudinal inclination during forward flight, causing errors when the angle surpasses a critical threshold. This study aimed to propose and assess new designs for pitot-static tube ports to mitigate the angle of attack. Modifications, such as enlarging the inlet cross section, altering the tube port's leading surface angle, and introducing new inlet openings, were implemented in five prototypes. After 2D CFD simulations, these prototypes were 3D printed, and experiments were conducted in a wind tunnel across angles from 0° to 55° at three airflow speeds. CFD results indicated increased error with larger inlet diameters and revealed an oscillating error phenomenon for multiple inlet openings. Experimental tests contradicted expected accuracy issues with extended diameters, suggesting superior characteristics at higher angles of attack. An oscillating error of pitot-static tubes with multiple holes was affirmed. The study targeted a pitot-static tube port design with a maximum 5% error in airspeed measurement within attack angles from 0° to 40°, showing promise for vertical takeoff and landing vehicle airspeed measurement during horizontal forward flight.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20304 - Aerospace engineering
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Journal of Aerospace Engineering
ISSN
0893-1321
e-ISSN
1943-5525
Volume of the periodical
37
Issue of the periodical within the volume
4
Country of publishing house
US - UNITED STATES
Number of pages
11
Pages from-to
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UT code for WoS article
001223147200012
EID of the result in the Scopus database
2-s2.0-85193078872