Design and Analysis of Transonic Wind Tunnel

α
Parthasarathy Garre
Parthasarathy Garre
σ
T. Kumaraswamy
T. Kumaraswamy
ρ
V.V.S. Nikhil Bharadwaj
V.V.S. Nikhil Bharadwaj
α Jawaharlal Nehru Technological University, Hyderabad

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Design and Analysis of Transonic Wind Tunnel

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Abstract

The Transonic Wind Tunnel is used to test aircraft models at speeds from Mach number 0.2 to 1.4. Transonic flows consist of mixed subsonic and supersonic flow regions. Shocks can occur in these flows but often do not have a strong enough pressure gradient to assume flow properties similar to those of supersonic flows. These regions are difficult to model mathematically because they have characteristics of subsonic and supersonic flows. In this regard, the paper is aiming towards the design and analysis of the transonic wind tunnel performance by considering two phases namely automated design and its evaluation. Modern optimization software is combined with isentropic relations; simulations are analyzed to design a Mach 1.2 nozzle with maximum test length. The optimal design has an unconventional shape described as compound curvature, which makes the contour appear slightly wavy in AutoCAD. The same is evaluated and found satisfactory for the proposed modification of the test section in the wind tunnel in fluent analysis.

References

6 Cites in Article
  1. Mark Rennie,Peter Sutcliffe,Alexander Vorobiev,Alan Cain (2013). Mathematical Modeling of Wind-Speed Transients in Wind Tunnels.
  2. K Butler,D Cancel,B Earley,S Morin,E Morrison,M Sangenario (2010). Design and Construction of a Supersonic Wind Tunnel.
  3. Dimitris Drikakis (2010). Introduction to Compressible Flows.
  4. P Balachandran (2007). Fundamentals of Compressible Fluid Dynamics.
  5. Mauricio G Silva,O Victor,Victor Gamarra,Koldaev (2009). Control of reynold number in a high speed wind tunnel.
  6. Robert Vocke,Gerardo Nunez (2016). Test Data Report, Low-Speed Wind Tunnel Drag Test of a 2/5 Scale Lockheed AH-56 Cheyenne Door-Hinge Hub.

Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

Data Availability

Not applicable for this article.

How to Cite This Article

Parthasarathy Garre. 2014. \u201cDesign and Analysis of Transonic Wind Tunnel\u201d. Global Journal of Research in Engineering - D: Aerospace Science GJRE-D Volume 14 (GJRE Volume 14 Issue D1): .

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Version of record

v1.2

Issue date

June 10, 2014

Language
en
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The Transonic Wind Tunnel is used to test aircraft models at speeds from Mach number 0.2 to 1.4. Transonic flows consist of mixed subsonic and supersonic flow regions. Shocks can occur in these flows but often do not have a strong enough pressure gradient to assume flow properties similar to those of supersonic flows. These regions are difficult to model mathematically because they have characteristics of subsonic and supersonic flows. In this regard, the paper is aiming towards the design and analysis of the transonic wind tunnel performance by considering two phases namely automated design and its evaluation. Modern optimization software is combined with isentropic relations; simulations are analyzed to design a Mach 1.2 nozzle with maximum test length. The optimal design has an unconventional shape described as compound curvature, which makes the contour appear slightly wavy in AutoCAD. The same is evaluated and found satisfactory for the proposed modification of the test section in the wind tunnel in fluent analysis.

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Design and Analysis of Transonic Wind Tunnel

T. Kumaraswamy
T. Kumaraswamy
V.V.S. Nikhil Bharadwaj
V.V.S. Nikhil Bharadwaj
Parthasarathy Garre
Parthasarathy Garre Jawaharlal Nehru Technological University, Hyderabad

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