除尘管道粉尘运移及沉积研究

来源 :中国计算力学大会2018暨国际华人计算力学大会2018 | 被引量 : 0次 | 上传用户：yulie2

【摘要】

：

采用欧拉–拉格朗日方法，并考虑气相与颗粒相的双向耦合，对管道内不同工况下气固多相流动进行了数值模拟。基于颗粒与壁面碰撞过程中的能量分析，建立了粉尘沉积–回弹模型，即粉尘颗粒与壁面碰撞后，法向速度所对应的动能大于壁面的黏附能才会回弹，否则会被壁面捕获。由此得出了粉尘颗粒的沉积准则以及颗粒碰撞后的回弹速度。

【作者】

：

张丹罗鑫魏泳涛

【机构】

：

建筑与环境学院,四川大学,成都,四川,610065,中国

【出处】

：

中国计算力学大会2018暨国际华人计算力学大会2018

【发表日期】

：

2018年10期

【关键词】

：

气固多相流欧拉-拉格朗日方法双向耦合粉尘沉积准则回弹速度

下载到本地 , 更方便阅读

下载此文赞助VIP

声明 : 本文档内容版权归属内容提供方 , 如果您对本文有版权争议 , 可与客服联系进行内容授权或下架

论文部分内容阅读

其他文献

Symmetry preserving Lagrangian hydrodynamics in 2D r-z staggered coordinates

The study of cylindrical symmetric flow is significant in Langrangian simulations of implosion or explosion problems.In this paper,we present an area-weighted compatible Lagrangian scheme in 2D cylind

会议

area-weightedcompatiblesymmetrystaggered

基于重叠网格技术的双折角滑行艇阻力数值预报与验证

本文针对双折角双防溅条滑行艇，基于RANS 方程，采用重叠网格技术，对滑行艇静水直航状态下的阻力及航行姿态进行预报，解决了传统运动域方法因流域随船体运动而导致自由液面倾斜失真的问题，并将计算结果与模型试验数据进行了对比，结果表明阻力及运动姿态与试验数据吻合较好，证实了文中数值模拟方法应用于高速滑行艇自由模拖曳航行数值预报的可行性。

会议

双折角滑行艇重叠网格STAR-CCM+阻力特性

Supersonic Combustion Flow Field Study for Scramjet Combustor with Parameter-related Fuel-Air Equiva

The hydrogen transverse jet supersonic combustion flow field in a 2-D direct-connection supersonic combustor with rectangular section is numerically studied.Most of the current studies has investigate

会议

Fuel-air stoichiometric ratioHydrogen transverse jetDirect-connection superson

粘弹性流体圆柱绕流流噪声数值模拟研究

向水中添加可溶性高分子聚合物可以得到粘弹性流体。本文通过商用软件Fluent 的UDF 二次开发功能对粘弹性流体流经雷诺数100 的圆柱绕流进行二维数值模拟，并将流场仿真的结果进行声类比计算了流致噪声。粘弹性流体的本构方程选用FENE_P(L2=10000)模型，流场计算的结果与已有文献进行对比，吻合较好。数值模拟的结果表明，水溶性高分子聚合物的添加可以起到抑制流场噪声的效果，包括近场噪声和远场噪

会议

高分子聚合物Fluent UDF声类比流噪声

An Immersed Boundary Projection method for Fluid-Flexible Structure Interaction

An immersed boundary projection method with the primitive variables is proposed for simulation of fluid-flexible body interaction.Both the 2D filament and the 3D flag motion with the inextensibility c

会议

Immersed boundary projection methodApproximate factorizationLagrange multiplie

Simulation of Sonic Boom Using Augmented Burgers Equation

The accurate simulation of sonic boom is of great importance for the low boom design of the next generation supersonic transport.It is hard to do the direct full-field simulation of sonic boom at crui

会议

Aero-noiseSonic Boom PredictionSupersonic TransportNonlinear Acoustics

Numerical Simulation of the Vortex Induced Vibration of Two Tandem Cylinders with Helical Strakes

Marine riser is commonly used in offshore to connect the offshore oil and gas fields and floating bodies functioning of deep-water oil and gas transportation.The vortexes periodically released by the

会议

helical strakestandem cylindersVIVnumerical analysis

Comparison of numerical methods used in the study of wave energy technology

Numerical simulation is an important method for the study of wave energy converter.There are,however,many numerical simulation methods based on different assumptions.For example,linear method based on

会议

FLUENTboundary element methodpotential flow theoryhydrodynamic coefficientsw

Numerical simulation of free surface waves in water with immersed structures

This paper concerns on the propagation of surface waves in a sink with special structures placed under the water.Due to the time-consuming and costly spend of experiment,with the growing development o

会议

Surface WaveVOF Methodk-ε RNG modelOpen Channel Wave BCNumerical Beach

Natural Convection and MHD effects on the complex geometry Channel in Multi-Region Lead-Lithium Blan

A consistent and conservative numerical scheme has been developed to study natural convection and MHD influences on the complex geometrical channel.This algorithm is based on the charge conservation f

会议

MHDNatural ConvectionMulti-physics fieldLM blanket

除尘管道粉尘运移及沉积研究

与本文相关的学术论文