Flow through non-uniform gauze screens

Livesey, J. L.; Laws, E.M.

doi:10.1017/s0022112073001825

Cited by 13 publications

(12 citation statements)

References 4 publications

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“…Livesey and Laws used Elder's method to generate axisymmetric pipe profiles and results obtained during the course of their investigation can be found in Livesey & Laws (1973a, 1973b. Discrepancies between measured and calculated profiles lead to a re-examination of the original linearization described in Elder (1959).…”

Section: Patel (1966) Conducted An Experimental Investigation Into Thmentioning

confidence: 99%

“…Discrepancies between measured and calculated profiles lead to a re-examination of the original linearization described in Elder (1959). One of the basic assumptions of this linearization was that the screen angle was small, and Livesey & Laws (1973b) have shown that differences between profiles arise because Elder (1959) retained a second-order term [namely sly)] in a first-order theory.…”

Section: Patel (1966) Conducted An Experimental Investigation Into Thmentioning

confidence: 99%

See 1 more Smart Citation

Flow Through Screens

Laws¹,

Livesey²

1978

Annu. Rev. Fluid Mech.

258

109

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Section: Patel (1966) Conducted An Experimental Investigation Into Thmentioning

confidence: 99%

Section: Patel (1966) Conducted An Experimental Investigation Into Thmentioning

confidence: 99%

Flow Through Screens

Laws¹,

Livesey²

1978

Annu. Rev. Fluid Mech.

258

109

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“…The η = 0.58 value was specified based on the correlation of Livesey and Laws [15], although this parameter will have little effect in this case, since the flow is almost normal to the screen. In the calculation, the BLs start at the channel inlet, so the inlet length was adjusted, so that the resulting BL profiles at the vane inlet location (with the vanes absent) matched the experimentally measured profiles as closely as possible.…”

Section: D Cfd Simulations 61 Case Setupmentioning

confidence: 99%

Screened expanding turning-vane concept

2020

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The paper presents the screened expanding corner vane concept, which can turn a channel flow by 90 • , while simultaneously increasing the flow area by at least a factor of two and thus halving the mean velocity, all without incurring any significant flow separation. The concept is demonstrated experimentally, and investigated with analytical and computational models. One target application is an ultra-compact closed-circuit wind tunnel, whose overall length is roughly half that of a conventional wind tunnel with the same test section. Graphic abstractscreen optional honeycomb suppressed BL separation Ultra−Compact Wind Tunnel

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“…A method of generating maximum shear with negligible decay downstream has to be selected. To generate a shear flow, various methods are available with their benefits and limitations well documented [15][16][17][18][19][20][21][22][23]. The turbulence intensity generated by the shear flow generator would suppress the role of secondary flows.…”

Section: Design Of the Shear Flow Generatormentioning

confidence: 99%

Investigation of the Shear Flow Effect and Tip Clearance on a Low Speed Axial Flow Compressor Cascade

Varpe

Pradeep

2013

International Journal of Rotating Machinery

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This paper explores the effect of inlet shear flow on the tip leakage flow in an axial flow compressor cascade. A flow with a high shear rate is generated in the test section of an open circuit cascade wind tunnel by using a combination of screens with a prescribed solidity. It is observed that a stable shear flow of shear rate 1.33 is possible and has a gradual decay rate until 15 times the height of the shear flow generator downstream. The computational results obtained agree well with the available experimental data on the baseline configuration. The detailed numerical analysis shows that the tip clearance improves the blade loading near the tip through the promotion of favorable incidence by the tip leakage flow. The tip clearance shifts the centre of pressure on the blade surface towards the tip. It, however, has no effect on the distribution of end wall loss and deviation angle along the span up to 60% from the hub. In the presence of a shear inflow, the end wall effects are considerable. On the other hand, with a shear inflow, the effects of tip leakage flow are observed to be partly suppressed. The shear flow reduces the tip leakage losses substantially in terms of kinetic energy associated with it.

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Flow through non-uniform gauze screens

Cited by 13 publications

References 4 publications

Flow Through Screens

Flow Through Screens

Screened expanding turning-vane concept

Investigation of the Shear Flow Effect and Tip Clearance on a Low Speed Axial Flow Compressor Cascade

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