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1. 发明申请

WO2008008896A2 CASCADED EDDY SIMULATION 审中-公开
标题翻译： CASCADED EDDY模拟
公开(公告)号：WO2008008896A2
公开(公告)日：2008-01-17
申请号：PCT/US2007073366
申请日：2007-07-12
申请人： EXA CORP , CHEN HUDONG , ORSZAG STEVEN , STAROSELSKY ILYA , YAKHOT VICTOR , ZHANG RAOYANG
发明人： CHEN HUDONG , ORSZAG STEVEN , STAROSELSKY ILYA , YAKHOT VICTOR , ZHANG RAOYANG
IPC分类号： G06G7/57
CPC分类号： G06F17/5009 , G06F17/5018 , G06F17/5095 , G06F2217/16 , G06T13/20 , G06T2210/24
摘要： A fluid flow is simulated by causing a computer to perform operations on data stored in the memory to compute at least one eddy of a fluid flow at a first scale and perform operations to compute at least one eddy of the fluid flow at both the first scale and a second scale. The second scale is a finer scale than the first scale, and the computation of the at least one eddy of the fluid flow at the second scale is constrained by results of the computation of the at least one eddy of the fluid flow at the first scale.
摘要翻译：通过使计算机对存储在存储器中的数据执行操作来模拟流体流，以计算第一尺度的流体流的至少一个涡流，并且执行操作以在第一比例计算流体流的至少一个涡流和第二个比例。第二尺度是比第一尺度更精细的尺度，并且在第二尺度处的流体流的至少一个涡流的计算受到在第一尺度处的流体流的至少一个涡流的计算的结果的约束。

2. 发明申请

WO2008021652A9 COMPUTER SIMULATION OF PHYSICAL PROCESSES 审中-公开
标题翻译：物理过程的计算机模拟
公开(公告)号：WO2008021652A9
公开(公告)日：2009-04-30
申请号：PCT/US2007073868
申请日：2007-07-19
申请人： EXA CORP , SHAN XIAOWEN , CHEN HUDONG , ZHANG RAOYANG
发明人： SHAN XIAOWEN , CHEN HUDONG , ZHANG RAOYANG
IPC分类号： G06G7/48
CPC分类号： G06F17/5018 , G06F2217/16
摘要： Simulating a physical process [Fig. 3, item 302] includes storing, in a computer-accessible memory, state vectors for voxels, where the state vectors correspond to a model and include entries that correspond to particular momentum states of possible momentum states at a voxel. Interaction operations are performed on the state vectors. The interaction operations model interactions between elements of different momentum states according to the model. Move operations performed on the state vectors reflect movement of elements t new voxels according to the model [Fig. 3, items 310, 314; Fig. 13, items 1318, 1338, 1340]. The model is adapted to simulate a high-Knudsen number flow that has a Knudsen number greater than O. 1.
摘要翻译：模拟物理过程[图。 3，项目302]包括在计算机可访问存储器中存储体素的状态向量，其中状态向量对应于模型并且包括与体素处的可能动量状态的特定动量状态相对应的条目。对状态向量执行交互操作。根据模型，不同动量状态的元素之间的交互作用模型相互作用。根据模型，对状态向量执行的移动操作反映元素t新体素的移动[图。 3，项目310,314; 图。 13，项目1318,1338,1340]。该模型适用于模拟Knudsen数大于0.1的高Knudsen数流。

3. 发明申请

WO2008021652A2 COMPUTER SIMULATION OF PHYSICAL PROCESSES 审中-公开
标题翻译：物理过程的计算机模拟
公开(公告)号：WO2008021652A2
公开(公告)日：2008-02-21
申请号：PCT/US2007073868
申请日：2007-07-19
申请人： EXA CORP , SHAN XIAOWEN , CHEN HUDONG , ZHANG RAOYANG
发明人： SHAN XIAOWEN , CHEN HUDONG , ZHANG RAOYANG
IPC分类号： G06F7/60
CPC分类号： G06F17/5018 , G06F2217/16
摘要： Simulating a physical process includes storing, in a computer-accessible memory, state vectors for voxels, where the state vectors correspond to a model and include entries that correspond to particular momentum states of possible momentum states at a voxel. Interaction operations are performed on the state vectors. The interaction operations model interactions between elements of different momentum states according to the model. Move operations performed on the state vectors reflect movement of elements to new voxels according to the model. The model is adapted to simulate a high-Knudsen number flow that has a Knudsen number greater than 0.1.
摘要翻译：模拟物理过程包括在计算机可访问存储器中存储体素的状态向量，其中状态向量对应于模型，并且包括对应于体素处的可能动量状态的特定动量状态的条目。对状态向量执行交互操作。根据模型，不同动量状态的元素之间的交互作用模型相互作用。根据模型，对状态向量执行的移动操作反映元素向新体素的移动。该模型适用于模拟Knudsen数大于0.1的高Knudsen数流。

4. 发明申请

WO2015017648A3 TEMPERATURE COUPLING ALGORITHM FOR HYBRID THERMAL LATTICE BOLTZMANN METHOD 审中-公开
标题翻译：混合热格子Boltzmann方法的温度耦合算法
公开(公告)号：WO2015017648A3
公开(公告)日：2015-11-05
申请号：PCT/US2014049129
申请日：2014-07-31
申请人： EXA CORP
发明人： GOPALAKRISHNAN PRADEEP , ZHANG RAOYANG , CHEN HUDONG
IPC分类号： G06F17/10
CPC分类号： G06F17/5009 , G06F17/10 , G06F17/5018 , G06F2217/16
摘要： A method includes simulating, in a lattice velocity set, transport of particles in a volume of fluid, with the transport causing collision among the particles; and generating a distribution function for transport of the particles, wherein the distribution function comprises a thermodynamic step and a particle collision step, and wherein the thermodynamic step is substantially independent of and separate from the particle collision step.
摘要翻译：一种方法包括：以晶格速度集合模拟一定体积的流体中的颗粒的运输，其中运输引起颗粒之间的碰撞; 并产生用于颗粒传输的分布函数，其中分布函数包括热力学步骤和颗粒碰撞步骤，并且其中热力学步骤基本上独立于颗粒碰撞步骤并且与颗粒碰撞步骤分离。

5. 发明专利

AU2018203940A1 Computer simulation of physical processes 未知
公开(公告)号：AU2018203940A1
公开(公告)日：2018-06-21
申请号：AU2018203940
申请日：2018-06-04
申请人： EXA CORP
发明人： CHEN HUDONG , ZHANG RAOYANG
IPC分类号： G06G7/50
摘要： Attorney Docket No.: 06283-0019WO1 A computer-implemented method for simulating fluid flow using a lattice Boltzmann (LB) approach and for solving scalar transport equations is described herein. In addition to the lattice Boltzmann functions for fluid flow, a second set of distribution 5 functions is introduced for transport scalars.

6. 发明专利

CA2919062A1 LATTICE BOLTZMANN COLLISION OPERATORS ENFORCING ISOTROPY AND GALILEAN INVARIANCE 未知
公开(公告)号：CA2919062A1
公开(公告)日：2015-01-29
申请号：CA2919062
申请日：2014-07-24
申请人： EXA CORP
发明人： CHEN HUDONG , ZHANG RAOYANG , GOPALAKRISHNAN PRADEEP
IPC分类号： G06F17/10 , G06F17/50 , G06F19/00
摘要： A method comprising: simulating, in a lattice velocity set, movement of particles in a volume of fluid, with the movement causing collision among the particles; based on the simulated movement, determining relative particle velocity of a particle at a particular location within the volume, with the relative particle velocity being a difference between (i) an absolute velocity of the particle at the particular location within the volume and measured under zero flow of the volume, and (ii) a mean velocity of one or more of the particles at the particular location within the volume; and determining, based on the relative particle velocity, a non-equilibrium post-collide distribution function of a specified order that is representative of the collision.

7. 发明公开

EP3028178A4 TEMPERATURE COUPLING ALGORITHM FOR HYBRID THERMAL LATTICE BOLTZMANN METHOD 审中-公开
标题翻译： TEMPERATURKOPPLUNGSALGORITHMUSFÜREIN HYBRIDES BOLTZMANN-VERFAHREN MIT EINEM THERMISCHEN GITTER
公开(公告)号：EP3028178A4
公开(公告)日：2017-05-03
申请号：EP14832274
申请日：2014-07-31
申请人： EXA CORP
发明人： GOPALAKRISHNAN PRADEEP , ZHANG RAOYANG , CHEN HUDONG
IPC分类号： G06F17/50
CPC分类号： G06F17/5009 , G06F17/10 , G06F17/5018 , G06F2217/16
摘要： A method includes simulating, in a lattice velocity set, transport of particles in a volume of fluid, with the transport causing collision among the particles; and generating a distribution function for transport of the particles, wherein the distribution function comprises a thermodynamic step and a particle collision step, and wherein the thermodynamic step is substantially independent of and separate from the particle collision step.
摘要翻译：一种方法包括：以晶格速度集合模拟一定体积的流体中的颗粒的运输，其中运输引起颗粒之间的碰撞; 并产生用于颗粒传输的分布函数，其中分布函数包括热力学步骤和颗粒碰撞步骤，并且其中热力学步骤基本上独立于颗粒碰撞步骤并且与颗粒碰撞步骤分离。

8. 发明专利

CA2912674A1 MASS EXCHANGE MODEL FOR RELATIVE PERMEABILITY SIMULATION 未知
公开(公告)号：CA2912674A1
公开(公告)日：2014-11-20
申请号：CA2912674
申请日：2014-05-15
申请人： EXA CORP
发明人： FAGER ANDREW , CROUSE BERND , NIE XIAOBO , ZHANG RAOYANG , LI YONG , OTOMO HIROSHI , CHEN HUDONG
IPC分类号： G01N15/08 , G01V9/00 , G06F19/00
摘要： This description relates to computer simulation of physical processes, such as computer simulation of multi-species flow through porous media including the determination/estimation of relative permeabilities for the multi-species flow through the porous media.

9. 发明专利

CA2890331A1 COMPUTER SIMULATION OF PHYSICAL PROCESSES INCLUDING MODELING OF LAMINAR-TO-TURBULENT TRANSITION 未知
公开(公告)号：CA2890331A1
公开(公告)日：2014-05-22
申请号：CA2890331
申请日：2013-10-03
申请人： EXA CORP
发明人： CHEN HUDONG , KOTAPATI RUPESH , ZHANG RAOYANG , SHOCK RICHARD , STAROSELSKY ILYA , LI YANBING
IPC分类号： G06F19/00 , G06F17/10
摘要： A computer-implemented method for simulating fluid flow using a lattice Boltzmann (LB) approach that includes assigning values for the wall shear stress on a per-facet (e.g., per-surfel) basis based on whether the fluid flow is laminar or turbulent is described herein. This description relates to computer simulation of physical processes, such as fluid flow and acoustics. This description also relates to a method for predicting the phenomena of laminar-to-turbulent transition in boundary layers.

10. 发明公开

EP2788916A4 COMPUTER SIMULATION OF PHYSICAL PROCESSES 审中-公开
标题翻译：物理过程的计算机模拟
公开(公告)号：EP2788916A4
公开(公告)日：2015-08-26
申请号：EP12855099
申请日：2012-05-31
申请人： EXA CORP
发明人： CHEN HUDONG , ZHANG RAOYANG
IPC分类号： G06G7/50 , G06F17/50
CPC分类号： G06F17/5018 , G06F2217/16
摘要： A computer-implemented method for simulating fluid flow using a lattice Boltzmann (LB) approach and for solving scalar transport equations is described herein. In addition to the lattice Boltzmann functions for fluid flow, a second set of distribution functions is introduced for transport scalars.

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