Some flow characteristics of lobed forced mixers at higher

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Some flow characteristics of lobed forced mixers at higher ...

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 vorticity, the variation of turbulent kinetic energy and the growth of the shear layer with distance from the trailing edge. Three trailing edge ...

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Some flow characteristics of lobed forced mixers at higher ...

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 vorticity, the variation of turbulent kinetic energy and the growth of the shear layer with distance from the trailing edge.

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Some aspects of the flows behind lobed forced mixers ...

01/11/1994  (a) Square wave lobed mixer (b) Semi-circular lobed mixer (d) (e) Cross.overpoint (c) Triangular lobed mixer (f) FIG. 2 Visualization of the Wake Region Behind Respective Lobed Mixers Vol. 21, No. 6 FLOWS BEHIND LOBED FORCED MIXERS 853 Results and discussion Figures 2a to c illustrate the wake region formed behind respective mixers with wires positioned at a horizontal

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On the vorticity characteristics of lobe-forced mixer at ...

25/01/2009  The lobe-forced mixer is one typical example for the passive control. Lobe-forced mixers are splitter plates with convoluted trailing edges designed to generate large-scale streamwise vorticity between two co-flowing streams. As typical passive vortex generators, their penetration regions are three dimensionally contoured surfaces.

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Mixing Characteristics of Forced Mixers with Scalloped Lobes

23/05/2012  Aerospace Science and Technology, Vol. 28, No. 1. 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. Effects of Core Flow Swirl on the Flow Characteristics of a Scalloped Forced Mixer.

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Flow field characteristics of forced lobed mixers with ...

An experimental investigation has been conducted in a lobed forced mixer with three different trailing edge configurations, using laser-Doppler anemometry, at a Reynolds number of 2.27 × 10 4. The three trailing edge configurations under investigation have the shape of a square wave, a semi-circular wave and a triangular wave. The results for a velocity ratio of 1:1 indicate that the strength ...

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Some measurements downstream of a lobed forced mixer with ...

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 ...

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Turbofan Forced Mixer Lobe Flow Modeling

analytical method for predicting three-dimensional flow development within the convoluted lobes of forced mixer nozzles installed in modern commercial turbofan engines. The design of these forced mixer lobes has been traditionally accomplished by using experimental correlations to relate mixer performance to a variety of geometrical parameters ...

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Some measurements downstream of a lobed forced mixer with ...

01/09/1993  Velocity and turbulence characteristics have been measured downstream of a lobed forced mixer with three different trailing edge configurations, using

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Some measurements downstream of a lobed forced mixer with ...

OSTI.GOV Journal Article: Some measurements downstream of a lobed forced mixer with different trailing edge configurations. Some measurements downstream of a lobed forced mixer with different trailing edge configurations. Full Record; Other Related Research; Abstract ...

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Some aspects of the flows behind lobed forced mixers ...

01/11/1994  (a) Square wave lobed mixer (b) Semi-circular lobed mixer (d) (e) Cross.overpoint (c) Triangular lobed mixer (f) FIG. 2 Visualization of the Wake Region Behind Respective Lobed Mixers Vol. 21, No. 6 FLOWS BEHIND LOBED FORCED MIXERS 853 Results and discussion Figures 2a to c illustrate the wake region formed behind respective mixers with wires positioned at a horizontal

Get price

Mixing Characteristics of Forced Mixers with Scalloped Lobes

23/05/2012  Aerospace Science and Technology, Vol. 28, No. 1. 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. Effects of Core Flow Swirl on the Flow Characteristics of a Scalloped Forced Mixer.

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Flow field characteristics of forced lobed mixers with ...

An experimental investigation has been conducted in a lobed forced mixer with three different trailing edge configurations, using laser-Doppler anemometry, at a Reynolds number of 2.27 × 10 4. The three trailing edge configurations under investigation have the shape of a square wave, a semi-circular wave and a triangular wave. The results for a velocity ratio of 1:1 indicate that the strength ...

Get price

Turbofan Forced Mixer Lobe Flow Modeling

analytical method for predicting three-dimensional flow development within the convoluted lobes of forced mixer nozzles installed in modern commercial turbofan engines. The design of these forced mixer lobes has been traditionally accomplished by using experimental correlations to relate mixer performance to a variety of geometrical parameters ...

Get price

Some measurements downstream of a lobed forced mixer with ...

01/09/1993  Velocity and turbulence characteristics have been measured downstream of a lobed forced mixer with three different trailing edge configurations, using

Get price

Some measurements downstream of a lobed forced mixer with ...

OSTI.GOV Journal Article: Some measurements downstream of a lobed forced mixer with different trailing edge configurations. Some measurements downstream of a lobed forced mixer with different trailing edge configurations. Full Record; Other Related Research; Abstract ...

Get price

On the vorticity characteristics of lobe-forced mixer at ...

Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides the spanwise Kelvin-Helmholtz vortex shedding, streamwise vortices are also generated within its mixing layer. The geometrical configuration of the lobe significantly affects these two types of vortices, which in turn affects the mixing performance of the mixer.

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On the vorticity characteristics of lobe-forced mixer at ...

On the vorticity characteristics of lobe-forced mixer at different configurations. Author. mao, R. Yu, S.C.M. Zhou, T. Chua, L.P. Faculty. Civil Engineering and Geosciences. Date. 2009-01-25. Abstract. Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides the spanwise Kelvin–Helmholtz vortex shedding, streamwise vortices are ...

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Flow structure in a periodic axial vortex array ...

17/08/2012  Some flow characteristics of lobed forced mixers at higher velocity ratios. Experiments in Fluids, Vol. 20, No. 3 . Velocity and Turbulence Characteristics of Isothermal Lobed Mixer Flows. 1 December 1995 Journal of Fluids Engineering, Vol. 117, No. 4. Velocity measurements downstream of a lobed-forced mixer with different trailing-edge configurations. Simon C. M. Yu , Joon H. Yeo and ...

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Forced Action Mixer - History, Types Manufacturers of Mixers

Many tractor mixers are constructed to a high standard, and the idea of low cost ownership in mind so that a consumer within the agriculture industry can improve their standard of work without having to worry about cash flow. Applications. Forced action mixers are incredibly versatile machines which can efficiently mix a wide range of materials. Read on to learn more about just some of the ...

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Mixing Characteristics of Forced Mixers with Scalloped Lobes

23/05/2012  Aerospace Science and Technology, Vol. 28, No. 1. 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. Effects of Core Flow Swirl on the Flow Characteristics of a Scalloped Forced Mixer.

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On the vorticity characteristics of lobe-forced mixer at ...

Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides the spanwise Kelvin-Helmholtz vortex shedding, streamwise vortices are also generated within its mixing layer. The geometrical configuration of the lobe significantly affects these two types of vortices, which in turn affects the mixing performance of the mixer.

Get price

On the vorticity characteristics of lobe-forced mixer at ...

On the vorticity characteristics of lobe-forced mixer at different configurations R. Mao Æ S. C. M. Yu Æ T. Zhou Æ L. P. Chua Received: 22 January 2008/Revised: 24 December 2008/Accepted: 31 December 2008/Published online: 25 January 2009 Springer-Verlag 2009 Abstract Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides ...

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On the vorticity characteristics of lobe-forced mixer at ...

On the vorticity characteristics of lobe-forced mixer at different configurations. Author. mao, R. Yu, S.C.M. Zhou, T. Chua, L.P. Faculty. Civil Engineering and Geosciences. Date. 2009-01-25. Abstract. Lobe-forced mixer is one typical example of the passive flow controllers owing to its corrugated trailing edge. Besides the spanwise Kelvin–Helmholtz vortex shedding, streamwise vortices are ...

Get price

22 1 - Iowa State University

Some suggestions to the discrepancy are proposed. Keywords: lobed forced mixer flows, eddy viscosity model, velocity distribution. INTRODUCTION Splitter plates with a convoluted trailing edge (com- monly referred to as lobed forced mixers) are passive, fluid mechanical devices which generate in the co- flowing streams a three-dimensional shear layer with strong secondary flow. As shown in Fig ...

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Flow structure in a periodic axial vortex array ...

17/08/2012  Some flow characteristics of lobed forced mixers at higher velocity ratios. Experiments in Fluids, Vol. 20, No. 3 . Velocity and Turbulence Characteristics of Isothermal Lobed Mixer Flows. 1 December 1995 Journal of Fluids Engineering, Vol. 117, No. 4. Velocity measurements downstream of a lobed-forced mixer with different trailing-edge configurations. Simon C. M. Yu , Joon H. Yeo and ...

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NUMERICAL SIMULATION OF THE MIXING AND FLOW ...

and the lobed mixer is divided into 8 lobes. The maximum radius of the by-pass is 100 mm, the entrance radius of core flow is 47 mm, the length fromthe lobe tail edge to the outlet of the mixer is 400 mm. The mixers were classified as two types: one was the lobed mixer with centrum, the other was the lobed mixer without centrum. Due to the ...

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Forced Action Mixer - History, Types Manufacturers of Mixers

Many tractor mixers are constructed to a high standard, and the idea of low cost ownership in mind so that a consumer within the agriculture industry can improve their standard of work without having to worry about cash flow. Applications. Forced action mixers are incredibly versatile machines which can efficiently mix a wide range of materials. Read on to learn more about just some of the ...

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Numerical Simulation of the Vortical Structures in a Lobed ...

Numerical simulations of an incompressible jet mixing flow exhausted from a circular lobed mixer/nozzle were presented and validated against whole-field quantitative Dual-Plane Stereoscopic PIV (DP-SPIV) measurement results of the same flow. The numerical simulations were conducted using a Reynolds Averaged Navier-Stokes approach with a modest number of unstructured tetrahedral cells and four ...

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Experimental investigation of flow behavior for scalloped ...

Particle image velocimetry and planar laser-induced fluorescence techniques are used to measure the flow of scalloped, lobed, and splitter mixers. Special attention is given to the understanding of...

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