Computational fluid dynamics prediction of intake ingestion relevant to short take-off and vertical landing aircraft

Behrouzi, Parviz; McGuirk, James J.

doi:10.1243/0954410991532909

Cited by 5 publications

(4 citation statements)

References 22 publications

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“…Behrouzi and McGruik [26] predicted numerically the flow field associated with a generic twin-jet plus intake model operating under ingestion flow conditions. The results have been compared with laser Doppler anemometry (LDA) validation measurements taken in a specially designed test case configuration.…”

Section: Numerical Analysis Of Intakesmentioning

confidence: 99%

Aero-Engines Intake: A Review and Case Study

El-Sayed¹

2016

J Robot Mech Eng Resr

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This paper presents an aerodynamic review for intakes of aero-engines. Classification of different types is introduced for both subsonic and supersonic aircrafts. Important parameters influencing intake performance like pressure recovery and spillage drag are discussed. In addition, crucial performance issues such as the angle of attack, ground vortex, swirl flow, noise propagation and icing are presented. These are critical issues which are carefully considered by airframe rather than engine manufacturers. Intake icing may be extremely dangerous and leads to drastic decrease in air mass flow and consequently aircraft propulsion.Calculation of intake performance is explained. The effect of intake performance on the whole engine performance is highlighted. Numerical analyses for present and previous researches are explained and critical parameters are identified.Finally, a case study resembling the intake of a high bypass ratio turbofan engine (in close similarity to that of GE CF-6 Turbofan Engine) is numerically analysed using the commercial code "ESI-CFD 2010" is thoroughly described and analysed. This paper is the first of a series of research work that will cover several R & D activities in HBPR and future EBPR turbofan intakes.

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Section: Numerical Analysis Of Intakesmentioning

confidence: 99%

Aero-Engines Intake: A Review and Case Study

El-Sayed¹

2016

J Robot Mech Eng Resr

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“…Other aerospace applications of LDA have included measurements from a helicopter rotor model in a largescale wind tunnel [157] and the study of STOVL aircraft ow regimes [158]. In the ®rst case, three-dimensional LDA measurements were conditionally sampled and combined with two-dimensional PIV to study the wake generated behind a scaled helicopter rotor.…”

Section: Other Applicationsmentioning

confidence: 99%

The application of laser measurement techniques to aerospace flows

Lawson

2004

Proceedings of the Institution of Mechanical Engineers, Part G:

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Laser measurement techniques are becoming more commonly applied to many areas of thermo¯uids and heat transfer. An area of their application, which presents highly challenging requirements, is in the measurement of aerospace¯ows. In this case the experimentalist may encounter high mass¯owrates, high-speed¯ows and in some cases high temperatures, and the measurements may also have to be taken with restricted optical access. Such types of¯ow have already been measured using established laser techniques such as particle image velocimetry, laser Doppler anemometry, laser-induced¯uorescence and liquid crystal thermography. Other more recent techniques which have seen application include Doppler global velocimetry and molecular tagging velocimetry for velocity measurement and thermographic phosphor thermometry for surface temperature measurement. This paper reviews the most recent advances in laser techniques and their application to aerospace environments.

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“…The Hybrid results were shown to be significantly more grid dependent over the range of grid refinement than the Quadratic differencing scheme predictions. Behrouzi and McGuirk (1999) recently have reported prediction of the twin-jet with intake unit. Over 275,000 grids were used and reasonable prediction of the flow using the k-e model was achieved.…”

Section: L£™g1mentioning

confidence: 99%

Numerical studies of twin‐jet impingement for STOVL flow application

Behrouzi

2000

Journal of the Chinese Institute of Engineers

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The behaviour of turbulent jet impingement is of considerable importance to the performance of STOVL (Short Take-Off and Vertical Landing) aircraft. Theoretical analyses of the flow field produced by jet impingement on a ground surface are formulated in terms of solving the full Reynolds-Averaged Navier-Stokes (RANS) equations. This paper presents predictions of a twin-jet impingement on ground plane flow using the standard two-equation k-ε turbulence model. Predictions were performed for two impingement heights and two jet spacings. An examination of the effect of switching from first-order (Hybrid) to second-order (Quick) convection discretization was also studied. The results presented are sensibly independent of numerical influence and represent a true assessment of the performance of the turbulence model. The predictions were compared with LDV (Laser Doppler Velocimetry) experimental results. The main features of the flow field were correctly predicted. The fountain formation region was qualitatively predicted but quantitative under-prediction of fountain development characteristics was observed to be around 50%. This is probably due to fountain unsteadiness, which is not included in the steady state CFD predictions presented here.

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Computational fluid dynamics prediction of intake ingestion relevant to short take-off and vertical landing aircraft

Cited by 5 publications

References 22 publications

Aero-Engines Intake: A Review and Case Study

Aero-Engines Intake: A Review and Case Study

The application of laser measurement techniques to aerospace flows

Numerical studies of twin‐jet impingement for STOVL flow application

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