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公开(公告)号：US5910902A
公开(公告)日：1999-06-08
申请号：US829448
申请日：1997-03-28
申请人： Kim Molvig , Hudong Chen , Christopher M. Teixeira , Stephen Remondi , David Lawrence Hill , Fongyan Gang , Ales Alajbegovic , James E. Hoch, Jr.
发明人： Kim Molvig , Hudong Chen , Christopher M. Teixeira , Stephen Remondi , David Lawrence Hill , Fongyan Gang , Ales Alajbegovic , James E. Hoch, Jr.
CPC分类号： G06F17/5018 , G06F2217/16
摘要： A physical process is simulated by storing in a memory state vectors for voxels and a representation of at least one surface. The state vectors include entries that correspond to particular momentum states of set of possible momentum states at a voxel. Interaction operations are performed on the state vectors to model interactions between elements of different momentum states. In addition, surface interaction operations are performed on the representation of the surface. The surface interaction operations model interactions between the surface and elements of at least one voxel near the surface. The elements have a tangential momentum relative to the surface, and the surface interaction operations retain at least a portion of the tangential momentum of the elements. The portion of tangential momentum retained corresponds to a friction parameter. The friction parameter is varied based on changes in pressure near the surface. Finally, move operations are performed on the state vectors to reflect movement of elements to new voxels.
摘要翻译： 通过在存储器状态中存储体素向量和至少一个表面的表示来模拟物理过程。 状态向量包括对应于在体素处的可能动量状态集合的特定动量状态的条目。 对状态向量执行交互操作，以模拟不同动量状态的元素之间的相互作用。 此外，对表面的表示执行表面相互作用操作。 表面相互作用模型在表面附近的至少一个体素的表面和元素之间的相互作用。 元件相对于表面具有切向动量，并且表面相互作用操作保持元件的切向动量的至少一部分。 保留的切向动量部分对应于摩擦参数。 摩擦参数根据表面附近的压力变化而变化。 最后，对状态向量执行移动操作，以反映元素向新体素的移动。
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公开(公告)号：US5606517A
公开(公告)日：1997-02-25
申请号：US255409
申请日：1994-06-08
CPC分类号： G06F17/5018 , G06F2217/10 , G06F2217/16
摘要： A computer implemented method for simulating a physical process. The method includes storing in a memory a state vector for each of a number of voxels. Each state vector includes a plurality of integers, each of which corresponds to a particular momentum state of a number of possible momentum states at a voxel and represents the number of elements having the particular momentum state. Each integer has more than two possible values. The method also includes performing interaction operations on the state vectors that model interactions between elements of different momentum states, performing viscosity modification operations on the state vectors to change the viscosity of the simulated physical process, and performing move operations on the state vectors that reflect movement of elements to new voxels.
摘要翻译： 用于模拟物理过程的计算机实现的方法。 该方法包括在存储器中存储多个体素中的每一个的状态向量。 每个状态向量包括多个整数，每个整数对应于体素上的若干可能动量状态的特定动量状态，并且表示具有特定动量状态的元素的数量。 每个整数有两个以上的可能值。 该方法还包括对状态向量执行交互操作，所述状态向量建模不同动量状态的元素之间的相互作用，对状态向量执行粘度修改操作以改变模拟物理过程的粘度，以及对反映运动的状态向量执行移动操作 的元素到新的体素。
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公开(公告)号：US5953239A
公开(公告)日：1999-09-14
申请号：US998768
申请日：1997-12-29
申请人： Christopher M. Teixeira , Hudong Chen , Kim Molvig
发明人： Christopher M. Teixeira , Hudong Chen , Kim Molvig
CPC分类号： G06F17/5018 , G06F2217/16
摘要： A physical process is simulated by storing in a memory state vectors for voxels. The state vectors include entries that correspond to particular momentum states of possible momentum states at a voxel. Iinteraction operations are performed on the state vectors. The interaction operations model interactions between elements of different momentum states. For a particular state vector, the interaction operations include performing energy-exchanging interaction operations that model interactions between elements of different momentum states that represent different energy levels. A rate factor for the voxel represented by the particular state vector affects a degree to which energy-exchanging interaction operations cause a transfer of elements from states representing lower energy levels to states representing higher energy levels, rather than from states representing higher energy levels to states representing lower energy levels. Move operations then are performed on the state vectors to reflect movement of elements to new voxels. The rate factor is generated for a voxel based on rate factors for voxels from which elements of the voxel moved.
摘要翻译： 通过将体素存储在存储器状态向量中来模拟物理过程。 状态向量包括对应于体素上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。 互动操作模型不同动量状态元素之间的相互作用。 对于特定状态向量，交互操作包括执行能量交换交互操作，其模拟表示不同能级的不同动量状态的元素之间的交互。 由特定状态向量表示的体素的速率因子影响能量交换相互作用操作导致元素从表示较低能级的状态转移到表示较高能级的状态的程度，而不是表示向状态表示较高能级的状态 代表能源水平较低。 然后对状态向量执行移动操作，以反映元素向新体素的移动。 基于体素的元素移动的体素的速率因子为体素生成速率因子。
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公开(公告)号：US5848260A
公开(公告)日：1998-12-08
申请号：US566032
申请日：1995-12-01
申请人： Hudong Chen , David Lawerence Hill , James Hoch , Kim Molvig , Christopher M. Teixeira , Kenneth R. Traub
发明人： Hudong Chen , David Lawerence Hill , James Hoch , Kim Molvig , Christopher M. Teixeira , Kenneth R. Traub
CPC分类号： G06T15/40 , G06F17/5018 , G06F2217/16
摘要： To simulate physical processes, state vectors for each of multiple voxels are stored in a memory along with a representation for each of multiple facets that are sized and oriented independently of the size and orientation of the voxels and, in combination, represent one or more surfaces. Each state vector includes multiple entries, each of which corresponds to a number of elements at a particular momentum state of multiple possible momentum states at a voxel. Interaction operations that model interactions between elements of different momentum states are performed on the state vectors, and surface interaction operations that model interactions between a facet and elements at one or more voxels near the facet are performed on the representations of facets. Finally, move operations that reflect movement of elements to new voxels are performed on the state vectors.
摘要翻译： 为了模拟物理过程，将多个体素中的每一个的状态矢量与存储器一起存储在存储器中，以及与体素的尺寸和取向无关的大小和取向的多个面的表示，并且组合地表示一个或多个表面 。 每个状态向量包括多个条目，每个条目对应于在体素处的多个可能动量状态的特定动量状态下的多个元素。 在状态向量上执行模拟不同动量状态的元素之间的交互的交互操作，并且在小平面的表示上执行在小面附近的一个或多个体素之间建模小面与元素之间的交互的表面交互操作。 最后，在状态向量上执行将元素的移动反映到新体素的操作。
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5.发明授权Computer system for simulating physical processes using multiple-integer state vectors 失效用于使用多整数状态向量模拟物理过程的计算机系统
公开(公告)号：US5594671A
公开(公告)日：1997-01-14
申请号：US165293
申请日：1993-12-10
申请人： Hudong Chen , Peter C. Churchill , Robert A. Iannucci , Kim Molvig , Gregory Papadopoulos , Stephen A. Remondi , Christopher M. Teixeira , Kenneth R. Traub
发明人： Hudong Chen , Peter C. Churchill , Robert A. Iannucci , Kim Molvig , Gregory Papadopoulos , Stephen A. Remondi , Christopher M. Teixeira , Kenneth R. Traub
CPC分类号： G06F15/803 , G06F17/5018 , G06F2217/10 , G06F2217/16
摘要： A computer implemented method for simulating a physical process. The method includes storing in a memory a state vector for each of a number of voxels (i.e., lattice sites). Each state vector includes a plurality of integers, each of which corresponds to a particular momentum state of a number of possible momentum states at a voxel (lattice site) and represents the number of elements having the particular momentum state. Each integer has more than two possible values. The method also includes performing interaction operations on the state vectors that model interactions between elements of different momentum states and performing move operations on the state vectors that reflect movement of elements to new voxels.
摘要翻译： 用于模拟物理过程的计算机实现的方法。 该方法包括在存储器中存储多个体素（即，格点位置）中的每一个的状态向量。 每个状态向量包括多个整数，每个整数对应于在体素（点阵位置）处的多个可能动量状态的特定动量状态，并且表示具有特定动量状态的元素的数量。 每个整数有两个以上的可能值。 该方法还包括对模拟不同动量状态的元素之间的相互作用的状态向量执行交互操作，并且对反映元素向新体素的运动的状态向量执行移动操作。
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公开(公告)号：US5640335A
公开(公告)日：1997-06-17
申请号：US409685
申请日：1995-03-23
CPC分类号： G06F17/5018 , G06F2217/10 , G06F2217/16
摘要： A computer implemented method for simulating a physical process. The method includes storing in a memory a state vector for each of a number of voxels. Each state vector includes a plurality of integers, each of which corresponds to a particular momentum state of a number of possible momentum states at a voxel and represents the number of elements having the particular momentum state. Each integer has more than two possible values. The method also includes performing interaction operations that model interactions between elements of different momentum states and include interaction rules that operate on a subset of the integers of a state vector. The interaction rules comprise a collision operator that transfers between integers representing a first set of momentum states and integers representing a second set of momentum states a number of elements that is determined based on the number of elements in the first and second sets of momentum states. Finally, the method includes performing move operations on the state vectors that reflect movement of elements to new voxels.
摘要翻译： 用于模拟物理过程的计算机实现的方法。 该方法包括在存储器中存储多个体素中的每一个的状态向量。 每个状态向量包括多个整数，每个整数对应于体素上的若干可能动量状态的特定动量状态，并且表示具有特定动量状态的元素的数量。 每个整数有两个以上的可能值。 该方法还包括执行对不同动量状态的元素之间的交互作用的交互操作，并且包括对状态向量的整数子集进行操作的交互规则。 交互规则包括：碰撞运算符，其在表示第一组动量状态的整数之间进行传递，并且根据第一和第二动量状态集合中的元素的数量确定多个元素，所述整数表示第二动量状态集合。 最后，该方法包括对反映元素向新体素的运动的状态向量执行移动操作。
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公开(公告)号：US5432718A
公开(公告)日：1995-07-11
申请号：US291414
申请日：1994-08-16
CPC分类号： G06F15/803 , G06F17/5018 , G06F2217/10 , G06F2217/16
摘要： Fluid flow is simulated by a massively parallel data processor having combinational logic for processing collision rules at lattice sites. Following collision processing, particle representations are moved to different sites dependent on direction and velocity of the particles. The collision rules are based on collisions of particles positioned at sites of a three-dimensional lattice. Particle representations identify particles of plural energy levels, and the collision rules allow for transfer of energy between particles. Particle representations relate to particles which move along four-dimensional face-centered hypercube lattices which project to the three-dimensional lattice. The lattice may include interfacing grids of different unit dimensions depending on the resolution required in individual volumes of space.
摘要翻译： 流体流动由具有组合逻辑的大规模并行数据处理器模拟，用于处理格点位置的碰撞规则。 在碰撞处理之后，根据粒子的方向和速度将粒子表示移动到不同的位置。 碰撞规则基于位于三维网格位置处的粒子的碰撞。 粒子表示识别多个能级的粒子，并且碰撞规则允许粒子之间的能量传递。 粒子表示涉及沿四维面心超立方体网格移动的粒子，其投影到三维网格。 晶格可以包括不同单位尺寸的接口网格，这取决于单个体积空间中所需的分辨率。
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公开(公告)号：US5377129A
公开(公告)日：1994-12-27
申请号：US30573
申请日：1993-03-12
CPC分类号： G06F15/803 , G06F17/5018 , G06F2217/10 , G06F2217/16
摘要： Fluid flow is simulated by a massively parallel data processor having combinational logic for processing collision rules at lattice sites. Following collision processing, particle representations are moved to different sites dependent on direction and velocity of the particles. The collision rules are based on collisions of particles positioned at sites of a three-dimensional lattice. Particle representations identify particles of plural energy levels, and the collision rules allow for transfer of energy between particles. Particle representations relate to particles which move along four-dimensional face-centered hypercube lattices which project to the three-dimensional lattice. The lattice may include interfacing grids of different unit dimensions depending on the resolution required in individual volumes of space.
摘要翻译： 流体流动由具有组合逻辑的大规模并行数据处理器模拟，用于处理格点位置的碰撞规则。 在碰撞处理之后，根据粒子的方向和速度将粒子表示移动到不同的位置。 碰撞规则基于位于三维网格位置处的粒子的碰撞。 粒子表示识别多个能级的粒子，并且碰撞规则允许粒子之间的能量传递。 粒子表示涉及沿四维面心超立方体网格移动的粒子，其投影到三维网格。 晶格可以包括不同单位尺寸的接口网格，这取决于单个体积空间中所需的分辨率。
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