Mixing enhancement in a lobed injector: Physics of Fluids
2019-1-29 · An experimental investigation of the non-reactive mixing processes associated with a lobed fuel injector in a coflowing air stream is presented. The lobed fuel injector is a device which generates streamwise vorticity, producing high strain ra
Bombardier Aerospace | Advanced Aerodynamics
ABSTRACT This paper presents a detailed experimental investigation of the influence of core flow swirl on the mixing and performance of a scaled turbofan mixer with 12 scalloped lobes. Measurements were made downstream of the mixer in a co-annular wind tu
Scarfing and Scalloping Effects on Lobed Forced Mixer at
Request PDF on ResearchGate | Scarfing and Scalloping Effects on Lobed Forced Mixer at Low-Speed Conditions | This paper presents the findings on two aspects of geometric modification to a lobed ...
Progress in helicopter infrared signature suppression
The use of lobed mixers in short efficient systems was firstly presented by Presz et al. 19 They conducted an experimental study to investigate the benefits of using forced mixer lobes in low-pressure ratio, ejector/diffuser systems. Their results showed
Institut f. Luft- u. Raumfahrt: Literatur
 W. Presz et al.: Forced Mixer Lobes in Ejector Designs. Journal of Propulsion, 4, pp 350-355, August 1988.  W. Presz et al.: Thrust Augmentation with Mixer/ Ejector Systems. Paper AIAA 2002-0230, 40th AIAA Aerospace Sciences Meeting & Exhibit, 2002
NASA Technical Reports Server (NTRS) - Forced mixer lobes
1986-6-1 · Forced mixer lobes in augmentor primary ejectors obtain a 100-percent increase in pumping over conventional design, together with nearly complete mixing in very short mixing ducts, through the generation of large scale axial vorticity in the mi
US5884472A - Alternating lobed mixer/ejector concept
US5884472A US09/018,428 US1842898A US5884472A US 5884472 A US5884472 A US 5884472A US 1842898 A US1842898 A US 1842898A US 5884472 A US5884472 A US 5884472A Authority US United St
PHASE II FINAL REVIEW - scribd.com
PHASE II FINAL REVIEW. 11-07-2013 DESIGN AND ANALYSIS OF MIXER EJECTOR SYSTEM FOR OPTIMIZED THRUST PERFORMANCE GUIDED BY, Mr. J.BRUCE RALPHIN ROSE, Asst. Prof, Dept of Aeronautical Engg, Regional Center of Anna University , Tirunelveli Regional -627007..
Aerothermodynamic benefits of mixed exhaust turbofans
The preference for mixed exhaust turbofan installations in corporate, regional, and in some commercial airliners is primarily because of the claimed improvement in thrust and Specific Fuel Consumption (SFC) with mixing. This improvement (2 to 3%) has been
Thrust Augmenting Ejectors I II Alperin 1983 In the
Thrust Augmenting Ejectors I II Alperin 1983 In the comprehensive articles by from MECHANCAL 0401 at SRM University
(PDF) Analysis of jet entrainment mechanism in the
Exp Fluids 48(4):693–714 Paterson RW (1984) Turbofan forced mixer nozzle flowfield—A benchmark experimental study. ASME J Eng Gas Turbines Power 106:692–698 Presz WJ, Gousy R et al (1986) Forced mixer lobes in ejector designs. AIAA Paper 86-1614 Presz WJ,
Forced mixer lobes in ejector designs - Harvard University
Title: Forced mixer lobes in ejector designs: Authors: Presz, Walter M., Jr.; Morin, Bruce L.; Gousy, Robert G. Affiliation: AA(United Technologies Research Center ...
Combined Rocket and Airbreathing Propulsion
2012-10-9 · An early modeling effort used a mixing-layer solution method to predict the mixer ow in ejector ramjets and scramjets.24 The mixing and thermal choking phenomena in a ...
Full text of "Combined Numerical/Analytical Perturbation
Full text of "Combined Numerical/Analytical Perturbation Solutions of the Navier-Stokes Equations for Aerodynamic Ejector/Mixer Nozzle Flows" See other formats
Experimental studies on supersonic mixer-ejector using
Paterson RW (1984) Turbofan mixer nozzle flow field - a benchmark experimental study. J Eng for Gas Turbines and Power 106: 692–698 Google Scholar Presz WM (Jr); Gousy R; Morin BL (1986) Forced mixer lobes in ejector designs.
(PDF) Lobed grilles for high mixing ventilation – An
ASME Journal of Engineering and Gas Turbines Power phenomena being at the origin of this performance was isolated 1984;106:692e8. and qualitatively compared for the jet issued from an elementary  Presz WJ, Gousy R, Morin B. Forced mixer lobes in ejecto
Parametrische Kreisprozessanalyse idealer
2019-8-3 · Paterson RW (1982) Turbofan forced mixer-nozzle internal flow field – a benchmark experimental study. NASA CR 3492 Presz WM Jr, Morin BL, Gousy RG (1988) Forced mixer lobes in ejector designs.
Experimental investigation of flow behavior for scalloped
2019-8-26 · Particle image velocimetry and planar laser-induced fluorescence techniques are used to measure the flow of scalloped, lobed, and splitter mixers. Special attention is …
Parametric Effects on Internal Aerodynamics of Lobed Mixer
The internal flow characteristics inside lobed mixer-ejector with curved mixing duct and the parametric effects on the lobed mixer-ejector performance are investigated numerically and validated by experimental test. The curved mixing duct affects the deve
A study on a lobed jet mixing flow by using stereoscopic
2019-3-18 · In a continuing effort to study the mixing enhancement by large-scale streamwise vortices generated by a lobed nozzle, a high-resolution stereoscopic particle image velocimetry (PIV) system was used in the present study to conduct three-dimens
Effects of rotor downwash on exhaust plume flow and
Read "Effects of rotor downwash on exhaust plume flow and helicopter infrared signature, Applied Thermal Engineering" on DeepDyve, the largest online rental service for scholarly research with thousands of academic publications available at your fingertip
Operation of Municipal Wastewater Treatment
Operation of Municipal Wastewater Treatment Plants.pdf
Forced mixer lobes in ejector designs - CORE
Forced mixer lobes in ejector designs . ... Forced mixer lobes in augmentor primary ejectors obtain a 100-percent increase in pumping over conventional design, together with nearly complete mixing in very short mixing ducts, through the generation of larg
Thrust Augmentation with Mixer/Ejector Systems | Presz
Forced mixer lobes in augmentor primary ejectors obtain a 100-percent increase in pumping over conventional design, together with nearly complete mixing in very short mixing ducts, through the ...
Диссертация на тему «Интенсификация
Presz W., Gousy R., and Morin B. Forced Mixer Lobes in Ejector Designs// AIAA Pap.-№86-1614 , 1986. 97. Werle M.J., Paterson R.W., and Presz W.M. Flow Structure ...
Walter Presz - Academia.edu
Walter Presz studies Autobobile. Forced mixer lobes in augmentor primary ejectors obtain a 100-percent increase in pumping over conventional design, together with nearly complete mixing in very short mixing ducts, through the generation of large scale axi
Some flow characteristics of lobed forced mixers at higher
Abstract. The flow characteristics of two types of lobed forced mixers, the unscalloped and the scalloped mixers, have been examined at velocity ratios higher than unity, in relation to the variation of mass flux uniformity, the decay of the streamwise vo
Aeroacoustic study of Internal Mixing Nozzles with Forced
Aeroacoustic study of Internal Mixing Nozzles with Forced Lobed Mixers using a High-Mach Subsonic Lattice Boltzmann Scheme Conference Paper · June 2014 with 47 Reads DOI: 10.2514/6.2014-3313
US5165452A - Large angle diffuser diverter design for
Such a long diffuser is sometimes not practical in industrial applications. However, some of the flow systems are left with no choice but to follow such design restrictions. For example, the steam ejector pumping systems and some of the wind tunnel design
CIR864/WI004: Chemical Injection Methods for Irrigation
2019-8-24 · On a compression stroke (Figure 3b) the chemical is forced into the discharge line through the discharge check valve. ... (Figure 8). This vacuum causes the chemical to flow into the pump. Then, it is carried between the gears or lobes and the