Analysis of the flow patterns on the fore-body section of a sounding vehicle in the transonic regime

Author(s)

Avelar, Ana Cristina ^{[1, 2]} ; Basso, Edson ^{[1, 2]} ; Pessoa Falcao Filho, Joao Batista ^{[1, 2]} ; Fernandes Francisco, Cayo Prado ^{[1, 2]} ; Martinez Romero, Pedro Geovanny ^{[1, 2]}

Affiliation

^[1] ITA, BR-12228900 Sao Jose Dos Campos, SP - Brazil

^[2] IAE, BR-12228904 Sao Jose Dos Campos, SP - Brazil

• Document type: Journal article
• Source: Journal of the Brazilian Society of Mechanical Sciences and Engineering; v. 40, n. 3 MAR 2018.
• Web of Science Citations: 1

Abstract

The present study has the purpose of presenting a numerical and experimental analysis of the flow patterns on the fore-body section of a sounding rocket model in the transonic regime. The measurements were carried out in the Pilot Transonic Wind Tunnel, known as TTP, at the Instituto de Aeronautica e Espaco (IAE), in Sao Jose dos Campos, Brazil, for Mach numbers ranging from 0.6 to 1.06 and zero angle of attack. The experimental techniques of pressure taps, pressure-sensitive paint (PSP) and schlieren visualization method were performed on a 1: 34 scaled model of a sounding rocket. Complex phenomena as shock waves, boundary layer detachment, and expansion waves were clearly identified from the PSP pressure field and from the schlieren images. Good agreements between the PSP, pressure taps and numerical simulation results were observed, except around the tip of the model because of the curvature and also in details that were not captured by the camera. (AU)

• FAPESP's process: 14/06790-6 - 32nd AIAA applied aerodynamics Conference/AIAA aviation and aeronautics forum and exposition 2014
• Grantee: Ana Cristina Avelar
• Support Opportunities: Research Grants - Meeting - Abroad