Design methodology and performance of an indraft wind tunnel

Johl, G.; Passmore, Martin A.; Render, P. M.

doi:10.1017/s0001924000000282

Cited by 55 publications

(54 citation statements)

References 12 publications

(22 reference statements)

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“…The relative contributions to drag coefficient, Figure 14, show a far more consistent fore-body drag contribution with a reducing base drag with increasing top angle up to 16 o . On the side slant, the surface pressures show fully attached flow for 4 o and 8 o , at angles greater than 8 o there is a suction peak on the leading edge of the slant followed by pressure recovery over the slant length indicating reattachment.…”

Section: A -Model Frontal Area Da -Area Of Influence Of Each Tapping mentioning

confidence: 86%

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Influence of Short Rear End tapers on the Base Pressure of a Simplified Vehicle.

Perry

Passmore

Finney

2015

SAE Int. J. Passeng. Cars - Mech. Syst.

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Author, co-author (Do NOT enter this information. It will be pulled from participant tab in MyTechZone)Affiliation (Do NOT enter this information. It will be pulled from participant tab in MyTechZone) AbstractThis paper looks into the effect on base pressure of applying a high aspect ratio chamfer to all edges of a simplified squareback model (the Windsor model). The effects are investigated using force and moment measurements along with surface pressure measurements on the slanted surface and vertical base. The work forms part of a larger study to develop understanding of the mechanisms that influence overall base pressure and hence the resulting aerodynamic drag.A short slant (approx. 4% of model length) was applied to the trailing edges of the simplified vehicle model, representing the small rear end optimisation typical of many real vehicle geometries. Two experiments were performed: the first applied a chamfer at varying angles to the top and bottom edges; the second test looked at the same chamfer angle applied to the sides of the model geometry while the top and bottom angle remained square. The changes in drag are discussed and explained in the context of the base pressures and area weighted pressure coefficients.

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Section: A -Model Frontal Area Da -Area Of Influence Of Each Tapping mentioning

confidence: 86%

“…All testing was carried out in the Loughborough University Wind Tunnel, full details of which can be found in Johl, Passmore & Render [16].…”

Section: The Facilitiesmentioning

confidence: 99%

Influence of Short Rear End tapers on the Base Pressure of a Simplified Vehicle.

Perry

Passmore

Finney

2015

SAE Int. J. Passeng. Cars - Mech. Syst.

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“…Testing was performed in the Loughborough University Wind Tunnel, full details of which can be found in Johl, Passmore & Render [13]. The operating velocity in the test section was up to 40m/s.…”

Section: Experimental Methodologymentioning

confidence: 99%

The Study of a Bi-Stable Wake Region of a Generic Squareback Vehicle using Tomographic PIV

Perry¹,

Almond²,

Passmore³

et al. 2016

SAE Int. J. Passeng. Cars - Mech. Syst.

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“…Testing was performed in the Loughborough University Wind Tunnel, Figure 1, full details of which can be found in [12]. The operating velocity in the test section was 40 m.s -1 .…”

Section: Facilitiesmentioning

confidence: 99%