effects of scalloping on the mixing mechanisms of forced
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Effects of Scalloping on the Mixing Mechanisms of Forced ...

This paper presents a detailed experimental and computational investigation of the effects of scalloping on the mixing mechanisms of a scaled 12-lobe turbofan mixer. Scalloping was achieved by eliminating approximately 70% of the lobe sidewall area. Measurements were made downstream of the mixer in a co-annular wind tunnel, and the simulations ...

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Effects of Scalloping on the Mixing Mechanisms of Forced ...

2013-7-9  Wright, A, Lei, Z, Mahallati, A, Cunningham, M, Militzer, J. "Effects of Scalloping on the Mixing Mechanisms of Forced Mixers With Highly Swirling Core Flow." Proceedings of the ASME Turbo Expo 2012: Turbine Technical Conference and Exposition.

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Effects of scalloping on the mixing mechanisms of forced ...

Effects of scalloping on the mixing mechanisms of forced mixers with highly swirling core flow July 2013 Journal of Engineering for Gas Turbines and Power 135(7):071202

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Effects of scalloping on the mixing mechanisms of forced ...

This paper presents a detailed experimental and computational investigation of the effects of scalloping on the mixing mechanisms of a scaled 12-lobe turbofan mixer. Scalloping was achieved by eliminating approximately 70% of the lobe sidewall area. Measurements were made downstream of the mixer in a co-annular wind tunnel and the simulations ...

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Scarfing and Scalloping Effects on Lobed Forced Mixer at ...

2012-5-23  Menu. Home; Journals. AIAA Journal; Journal of Aerospace Information Systems; Journal of Air Transportation; Journal of Aircraft; Journal of Guidance, Control, and Dynamics

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Scarfing and Scalloping Effects on Lobed Forced Mixer at ...

This paper presents the findings on two aspects of geometric modification to a lobed forced mixer, namely scarfing and scalloping. Scarfing the lobes was achieved by alternately extending and cutting back the lobes at the trailing edge, and scalloping the lobes was achieved by removing a certain percentage of the straight sidewall area in the penetration region.

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雷志军-中国科学院大学-UCAS

(8) Effects of Core Flow Swirl on the Flow Characteristics of a Scalloped Forced Mixer, Journal of Engineering for Gas Turbines and Poper, 2012, 第 1 作者 (9) Effects of Scalloping on the Mixing Mechanisms of Forced Mixers With Highly Swirling Core

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The Effects of Scalloping Width and Position on Jet Mixing ...

This paper presents a detailed experimental and computational investigation of the effects of scalloping on the mixing mechanisms of a scaled 12-lobe turbofan mixer.

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Vortical and turbulent structure of a lobed mixer free ...

2012-5-17  Effects of Scalloping on the Mixing Mechanisms of Forced Mixers With Highly Swirling Core Flow 10 June 2013 Journal of Engineering for Gas Turbines and Power, Vol. 135, No. 7 Prediction of the Sound radiated from Low-Mach Internal Mixing Nozzles with Forced

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The forced mixing layer between parallel streams Journal ...

The effect of periodic two-dimensional excitation on the development of a turbulent mixing region was studied experimentally. Controlled oscillations of variable ampli- tude and frequency were applied at the initiation of mixing between two parallel air streams.

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The Effects of Scalloping Width and Position on Jet Mixing ...

The Effects of Scalloping Width and Position on Jet Mixing of Lobed Nozzles. Liu DaWei 1 Huang Jun 1 Sheng Zhiqiang 1 Ji Jinzu 1 1 Beijing University of Aeronautics and Astronautics - School of Aeronautic Science and Engineering - Beijing - China. ...

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The forced mixing layer between parallel streams Journal ...

The effect of periodic two-dimensional excitation on the development of a turbulent mixing region was studied experimentally. Controlled oscillations of variable ampli- tude and frequency were applied at the initiation of mixing between two parallel air streams.

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Effect of divalent cation removal on the structure of gram ...

We show that without the charge screening effect of divalent cations, the LPS is forced to overcome the thermodynamically unfavorable energy barrier and flip across the hydrophobic bilayer to minimize the repulsive electrostatic forces, resulting in about 20% mixing of LPS and DPPC between the inner and outer bilayer leaflets.

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INFLUENCE OF VIBRATION ON PERFORMANCE OF

2018-12-1  The performance of recycled concrete mixed by ordinary forced mixing and vibration mixing respectively, was compared experimentally. And the results indicate that the vibration could increase the air contents of recycled concrete, improve the mechanical performance of the recycled concrete, provide a favorable environment in order to enhance ...

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mixing of fluids - mintecco

2013-12-23  Mixing refers to any operation used to change a non-uniform system into a uniform one (i.e., the random distribution of two or more initially separated phases); agitation implies forcing a fluid by mechanical means to flow in a circulatory or other pattern inside a vessel. Mixing is an integral part of chemical or physical processes mixing of ...

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The Effects of Fuel Atomization, Vaporization, and Mixing ...

1995-10-1  These fuel systems were chosen to separate effects of fuel atomization, vaporization, and fuel-air mixing. Each system was optimized with respect to injector targeting, injection timing, mixture enrichment, and spark advance. Open-valve injection timing increased UHC emissions more with the pintle-type injector than with the air-forced, system.

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Mixing of Pharmaceutical substances and its mechanism ...

2021-8-19  Mechanisms of mixing: The most common classification of mixers, however is based on the type of dosage form they are used to handle. A brief summary of mixing process in relation to the type of dosage form is presented below 1. Mixing for solids Physical properties that effect the ease of mixing are: (a) Material density (b) Particle size and ...

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Impact analysis of nanoparticle motion mechanisms on the ...

2005-10-1  The three mechanisms of particle motion on a micro-scale are compared for typical nanoparticles (CuO, D = 10 [nm], α d = 1%) suspended in water. The results are shown in Fig. 3. Clearly, the Brownian motion effect is most important when compared to the other two mechanisms. Download : Download full-size image; Fig. 3.

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Decay Mechanisms of Near-Inertial Mixed Layer

2021-8-13  Also, mixing associated with these waves is known to affect mixed layer heat content, sea surface temperature, and, thus, precipitation in coupled global models. Therefore, the mechanisms leading to the decay of these currents in the mixed layer and below are of considerable importance. Two such decay mechanisms are examined here.

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Flow structures of a lobed mixer and effects of streamwise ...

2019-6-25  These two mechanisms enlarge the interfacial surface area of the two streams greatly and substantially improve the turbulent mixing prominently. In addition, the presence of vortex clusters and T-shape vortices in the mixing layer indicate that they are common topological structures in such flows.

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Decay Mechanisms of Near-Inertial Mixed Layer

2021-8-13  Also, mixing associated with these waves is known to affect mixed layer heat content, sea surface temperature, and, thus, precipitation in coupled global models. Therefore, the mechanisms leading to the decay of these currents in the mixed layer and below are of considerable importance. Two such decay mechanisms are examined here.

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Climate Feedback Mechanisms and Human Response

2017-11-22  The mix of species in ecosystems is likely to shift, which in turn may affect atmospheric CO 2. Dieback of vegetation can release CO 2. The overall effect of these and other feedbacks is hard to tell. Ecosystem models tentatively suggest that carbon storage in vegetation and soils may eventually win out.

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The mechanism of upper-oceanic vertical motions forced

2011-3-2  The mechanism of upper-oceanic vertical motions forced by a moving typhoon. Shin-ichi Suzuki 1, Hiroshi Niino 2 and Ryuji Kimura 3. Published 2 March 2011 • 2011 The Japan Society of Fluid Mechanics and IOP Publishing Ltd Fluid Dynamics Research, Volume 43, Number 2 Citation Shin-ichi Suzuki et al 2011 Fluid Dyn. Res. 43 025504

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Subharmonics and vortex merging in mixing layers

2006-4-20  A new mechanism, ‘collective interaction’, was found which can bypass the sequential stages of vortex merging and make a large number of vortices (ten or more) coalesce. A deeper physical insight into the evolution of the coherent structures is revealed through the investigation of a forced mixing layer.

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Thermal effects on materials - UPM

2021-1-2  assumed, and thermal effects are understood as those caused by a temperature variation forced from outside or due to internal processes. Most of the times, both thermal ‘effects’ (i.e. thermal response) and thermal ‘causes’ (i.e. thermal load) are included in the study.

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Vortices in Aero-Propulsion Systems SpringerLink

Abstract. In this chapter we present examples of vortex motions encountered in turbomachines and aero-propulsion systems. In many cases, such motions have important effects on performance, and the focus is thus on vortex motion in situations of technological interest.

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Deep Implicit Attention: A Mean-Field Theory Perspective ...

2021-5-11  Deep implicit attention: attention as a collective response. Remember that our goal is to understand attention as the collective response of a statistical-mechanical system. Let’s now relate vector models like Eq. (15) to attention models by treating the external magnetic fields X i as input data.

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Foehn effect - Met Office

The effect of foehn on mental well-being is the subject of folk law in Alpine regions: the phenomenon has been linked to depression, suicide, madness, headaches, sleeplessness and crime waves. 'Foehnkrankenheit' (literally Foehn sickness ), as it is

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Causes of Precipitation: Convection, Orographic Uplift ...

A similar thing happens with warm fronts. A warm front approaching a colder air mass will rise on the back of the dense mass of cold air. As the warm air rises, it cools, eventually leading to ...

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Adderall and Caffeine: Can you mix these two powerful ...

Elevated risk of stroke. These side effects are all amplified when you use both caffeine and Adderall together. This is why it is so important for you not to mix these two nootropic drugs. The risk of experiencing a dangerously elevated heart rate or a panic attack from either caffeine or Adderall alone is already quite high.

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