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		题名	作者	年代	出处	被引量
	1	Modulation on flow field by solid particles in gas-solid two-phase turbulent free shear flows显示文摘In order to understand the interaction between fluid and particles, a two-way coupled three-dimensional mixing layer laden with particles at a Stokes number of 5 with different mass loadings is numerically studied. The pseudospectral method is used for the flow fluid and the Lagrangian approach is used to trace particles. The concept of computational particles is introduced to vary the mass loading of particles. The momentum coupling effect introduced by a particle is approximated to the point force. The simulation results show that the coherent structures are still dominant in the mixing layer, but the flow field is modulated by particles. The addition of the particles enhances the energy of all the Fourier modes with non-zero spanwise wavenumber, and the enhancement increases with the augment of the mass loading. A higher mass loading results in a lower energy at fundamental wavenumber and streamwise subharmonic Fourier mode of the fluid in the phase of Kelvin-Helmholtz rolling up, but for large-scale vortex structures pairing, the energy of the fluid increases as the mass loading increases. Similar trends can also be found in the developments of the turbulent kinetic energy and the momentum thickness.	LUOKun FANJianren JINHanhui CENKefa	2003	Progress in Natural Science:Materials International2003，13，3：	2
	2	A fast frequency estimate arithmetic with high resolution using FFT and CZT 显示文摘	He Kunying Guo Hong Liu Luokun	2006	Video Engineering2006，，8：	1
	3	A fast frequency estimate arithmetic with high resolution using FFT and CZT 显示文摘	He Kunying Guo Hong Liu Luokun	2006	Video Engineering2006，，8：	1
	4	显示文摘	CuiYan(崔琰) LiYan(李岩) LuoKun(罗坤)		稀有金属材料与工程0，，：	1
	5	DNS of the turbulence modulation by dispersed particles in compressible spatially developing two-phase jets显示文摘A new two way coupled direct numerical simulation (DNS) method is developed to study the turbulence modulation in the compressible and spatial developing particle laden turbulent jets with higher Reynolds number. The high resolution solver is performed for the gas phase flow field and the Lagrangian method is used to trace particles. It is found that the particles with Stokes number of 0.01 and 50 advance the evolution of the coherent structures in the flow field, but the particles with Stokes number of 1 delay it. All particles increase the turbulent kinetic energy and decrease the vorticity thickness, in which the particles with the Stokes number of 1 exhibit the maximum modulation. The jet velocity half width and the decay of the streamwise mean velocity along the centerline are reduced by particles with Stokes number of 0.01 and 1. The momentum thickness is increased by particles and the larger the Stokes number is, the larger the momentum thickness is.	LUOKun FANJianren CENKefa	2004	Progress in Natural Science:Materials International2004，14，9：	0

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