基于格子-Boltzmann方法及GPU加速的可压缩流动数值模拟

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：czliao

【摘要】

：

可压缩钝体绕流广泛存在于工程实际问题中,为了进一步分析其力学特性,本文采用格子Boltzmann 方法耦合双分布函数模型开展了可压缩粘性流体流动的数值模拟。计算中,时间项和空间项分别采用隐显龙格库塔和二阶迎风离散,同时,基于CUDA-C,将CPU 程序移植于GPU 上加速。

【作者】

：

张超王娴张虎李跃明

【机构】

：

西安交通大学航天航空学院机械结构强度与振动国家重点实验室,先进飞行器服役环境与控制陕西省重点实验室,西安710049,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】

：

格子-Boltzmann方法可压缩耦合双分布钝体绕流 GPU加速

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

亚音速自由射流噪声的模拟与研究

多年以来，亚音速自由射流的流场及噪声的研究一直是射流研究的热点。它在工程应用中有很重要的价值。本文采用雷诺平均湍流模型和声类比理论对亚音速射流的噪声特性进行了研究。通过设置多组计算工况对亚音速射流的流场和噪声场进行数值计算。

会议

亚音速射流射流噪声声类比理论数值模拟

Effect of choice of FFTW mode on the statistics of turbulent simulation

FFTW is an open source library widely used in numerical simulation of turbulence to accelerate the computation.Under most conditions,the option used in FFTW can only influence the computation speed bu

会议

DNSFFTWrotating plane Couette flow

Numerical Calculation of Water Resistance Coefficient of Immersed Tube Element in Towage

When towing the immersed tube element,the calculation of the water resistance coefficient is important.However,the variation range of the water resistance coefficient is relatively large,which makes t

会议

Water resistance coefficientImmersed tubeTowageViscous flow calculating metho

A Large Time Step Scheme with Fixed Choice Method for the Free Surface Shallow Water Equations

Large Tine Step is a high efficiency Scheme for the hyperbolic systems.The time step can be extended to break through the CFL restrictions.It has been used in aerodynamics and shallow water equations,

会议

Large Time Step SchemeShallow water EquationsOscillations

Fast and efficient approximate Riemann solvers for one-and two-dimensional elastic-plastic flows

For 1D and 2D elastic-plastic flows with the hypo-elastic constitutive model and von Mises yielding condition,the non-conservative character of the hypo-elastic constitutive model and the von Mises yi

会议

elastic-plastic flowApproximate Riemann solverscell-centered Lagrangian scheme

Compressibility Modification RANS Simulation for Chevron Jet with Noise Analysis

The present study aims to analyze the compressibility modification effects for conventional RANS(Reynolds-Averaged Navier-Stokes)simulation for high-subsonic jet flow,and furthermore the jet noise ana

会议

Compressibility modificationChevron nozzle jetNoise reductionRANS simulation

Solving non-Newtonian Power-law Fluid Equations by a 'Ghost' Time Iterative Method

When non-Newtonian power-law fluid governing equations are solved by finite element method(FEM),it will be noticed that the power-law terms in the equations are difficult to handle with.In this paper,

会议

Finite Element MethodPower-law FluidPower-law Terms

两层浅水系统的位移法分析

会议

The influence of the angle of attack on the flow around the seal whisker-shaped cylinder based on LE

Studies have shown that the whisker of the harbor seal,which exhibits a wavy shape,has a good ability to detect the preys tail flow,therefore this finding promotes the recent study of fluid engineerin

会议

Harbor seal whisker-shaped cylinderLESAngle of attackVIV3D vortex structure

基于CFX的离心喷雾干燥塔内催化剂物料蒸发过程的数值模拟

催化剂离心喷雾干燥制备过程是一个伴有传质、传热，液体蒸发相变的高温气体-颗粒两相湍流的复杂过程。采用流体动力学软件CFX 对催化剂干燥过程进行数值模拟，考虑到热风分配器的二级导流作用，着眼于干燥气体的湍流状态，以流体的宏观热力学和动力学参数描述流体微分方程，基于欧拉模型及拉格朗日体系的离散颗粒相模型，建立数学模型进行数值分析求解，得到塔内气流场、温度场、湿度场以及颗粒相干燥过程。并将仿真预测的数据

会议

催化剂数值模拟CFX热风分配器离心喷雾干燥塔

基于格子-Boltzmann方法及GPU加速的可压缩流动数值模拟

与本文相关的学术论文