公开(公告)号：US20190108296A1

公开(公告)日：2019-04-11

申请号：US15729216

申请日：2017-10-10

Applicant: Exa Corporation

Inventor： Adrien Mann ,  Chenghai Sun ,  Hudong Chen ,  Raoyang Zhang ,  Franck Léon Pérot

IPC: G06F17/50

Abstract: The description describes one or more processing devices and one or more hardware storage devices storing instructions that are operable, when executed by the one or more processing devices, to cause the one or more processing devices to perform operations including modeling the porous material as a two-dimensional interface, in a simulation space, in which fluid flows and sound waves travel through the porous material and experience pressure and acoustic losses. The operations also include simulating, in the simulation space, fluid flow and propagation of sound waves, the activity of the fluid being simulated so as to simulate movement of elements within the simulation space and across the interface, where the simulation of the movement of the elements across the interface is governed by the model.

公开(公告)号：US10262087B2

公开(公告)日：2019-04-16

申请号：US14994943

申请日：2016-01-13

Applicant: Exa Corporation

Inventor： Chenghai Sun ,  Franck Léon Pérot ,  Raoyang Zhang ,  Hudong Chen ,  David M. Freed ,  Ilya Staroselsky ,  Adrien Mann

IPC: G06F17/50

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing data representing the effect of tortuosity on the acoustic behavior of a fluid in a porous medium. One of the methods includes generating by a first data processing program of the data processing apparatus, a model of acoustic behavior of a fluid in a porous medium including an effect of tortuosity, with the model comprising a time variable indicative of a sound speed of the fluid. The method includes rescaling the time variable of the model based on the sound speed in a fluid in the porous medium. The method also includes simulating the acoustic behavior including the effect of tortuosity of the porous medium based on the rescaling of the time-related variables within the model.

公开(公告)号：US20150242553A1

公开(公告)日：2015-08-27

申请号：US14710282

申请日：2015-05-12

Applicant: Exa Corporation

Inventor： Chenghai Sun ,  Franck Léon Pérot ,  Raoyang Zhang ,  Hudong Chen ,  David M. Freed ,  Ilya Staroselsky

IPC: G06F17/50 ,  G06F17/10

CPC classification number: G06F17/5009 ,  G06F17/10 ,  G06F17/5018 ,  G06F17/5095 ,  G06F2217/16 ,  G06F2217/82

Abstract: A computer-implemented method for simulating flow and acoustic interaction of a fluid with a porous medium includes simulating activity of a fluid in a first volume adjoining a second volume occupied by a porous medium, the activity of the fluid in the first volume being simulated so as to model movement of elements within the first volume and using a first model having a first set of parameters, simulating activity of the fluid in the second volume occupied by the porous medium, the activity in the second volume being simulated so as to model movement of elements within the second volume and using a second model having a second set of parameters and differing from the first model in a way that accounts for flow and acoustic properties of the porous medium, and simulating movement of elements between the first volume and the second volume at an interface between the first volume and the second volume.

Abstract translation: 用于模拟流体与多孔介质的流动和声学相互作用的计算机实现的方法包括模拟邻近由多孔介质占据的第二体积的第一体积中的流体的活性，第一体积中的流体的活性被模拟 为了模拟第一体积内的元件的运动并且使用具有第一组参数的第一模型，模拟多孔介质占据的第二体积中的流体的活动，模拟第二体积中的活动以模拟运动 并且使用具有第二组参数并且以考虑多孔介质的流动和声学特性的方式与第一模型不同的第二模型，以及模拟元件在第一体积和第二体积之间的运动 在第一卷和第二卷之间的界面处的卷。

公开(公告)号：US20170199950A1

公开(公告)日：2017-07-13

申请号：US14994943

申请日：2016-01-13

Applicant: Exa Corporation

Inventor： Chenghai Sun ,  Franck Léon Pérot ,  Raoyang Zhang ,  Hudong Chen ,  David M. Freed ,  Ilya Staroselsky ,  Adrien Mann

IPC: G06F17/50 ,  G06F17/18

CPC classification number: G06F17/5018 ,  G06F2217/82

Abstract: Methods, systems, and apparatus, including computer programs encoded on computer storage media, for processing data representing the effect of tortuosity on the acoustic behavior of a fluid in a porous medium. One of the methods includes generating by a first data processing program of the data processing apparatus, a model of acoustic behavior of a fluid in a porous medium including an effect of tortuosity, with the model comprising a time variable indicative of a sound speed of the fluid. The method includes rescaling the time variable of the model based on the sound speed in a fluid in the porous medium. The method also includes simulating the acoustic behavior including the effect of tortuosity of the porous medium based on the rescaling of the time-related variables within the model.

公开(公告)号：US09646119B2

公开(公告)日：2017-05-09

申请号：US14710282

申请日：2015-05-12

Applicant: Exa Corporation

Inventor： Chenghai Sun ,  Franck Léon Pérot ,  Raoyang Zhang ,  Hudong Chen ,  David M. Freed ,  Ilya Staroselsky

IPC: G06G7/56 ,  G06F17/50 ,  G06F17/10

CPC classification number: G06F17/5009 ,  G06F17/10 ,  G06F17/5018 ,  G06F17/5095 ,  G06F2217/16 ,  G06F2217/82

Abstract: A computer-implemented method for simulating flow and acoustic interaction of a fluid with a porous medium includes simulating activity of a fluid in a first volume adjoining a second volume, the activity of the fluid in the first volume being simulated so as to model movement of elements within the first volume and using a first model having a first set of parameters, simulating activity of the fluid in the second volume occupied by the porous medium, the activity in the second volume being simulated so as to model movement of elements within the second volume and using a second model having a second set of parameters, and simulating movement of elements between the first volume and the second volume at an interface between the first volume and the second volume.