公开(公告)号：US20250165682A1

公开(公告)日：2025-05-22

申请号：US19031106

申请日：2025-01-17

Applicant: JIANGSU OCEAN UNIVERSITY

Inventor： Ze WANG ,  Qiong HU ,  Yajing CHEN ,  Jinhua WANG ,  Yang CHEN ,  Yiming HE ,  Yan WANG ,  Xu DING

IPC: G06F30/27 ,  G06F30/17 ,  G06F113/08

Abstract: Provide is a friction pair device comprising a friction pair stationary member, a plurality of micro channels, a Tesla valve structure, and a stress application device. The friction pair stationary member includes a friction pair static surface, which friction pair static surface is provided with a dynamic pressure groove. The dynamic pressure groove includes a dynamic pressure groove bottom. A surface of the dynamic pressure groove bottom is provided with micro-nano scale gaps. A super-lubricant is injected into the gaps to form a super-lubricant layer, allowing liquid medium molecules of a liquid-film to move freely along the dynamic pressure groove bottom. A slip velocity of the liquid medium molecules approaches a moving velocity of a friction pair dynamic surface, a slip length of the liquid medium molecules approaches positive infinity, and a super slip surface is formed on the dynamic pressure groove bottom.

公开(公告)号：US20250148176A1

公开(公告)日：2025-05-08

申请号：US18912204

申请日：2024-10-10

Applicant: The Government of the United States of America, as represented by the Secretary of Homeland Security

Inventor： Mark Fry

IPC: G06F30/28 ,  A01G15/00 ,  G06F113/08

Abstract: In an example, a system to modify a severe weather vortex comprises a controller configured to specify initial conditions for formation of the severe weather vortex, model the severe weather vortex with equations of fluid dynamics based on the initial conditions to produce a simulated severe weather vortex, and computationally add energy to a vortex generation area at an upper part of the simulated severe weather vortex to modify the simulated severe weather vortex to disrupt at least one of the formation or a travel path of the simulated severe weather vortex. A steerable mirror is oriented to focus solar energy from the sun at a vortex generation area at an upper part of the severe weather vortex based on the energy computationally added to modify the simulated severe weather vortex.

公开(公告)号：US20250005234A1

公开(公告)日：2025-01-02

申请号：US18826827

申请日：2024-09-06

Applicant: Dassault Systemes Americas Corp.

Inventor： Pradeep Gopalakrishnan ,  Raoyang Zhang ,  Hudong Chen

IPC: G06F30/25 ,  G06F17/11 ,  G06F30/23 ,  G06F30/28 ,  G06F30/367 ,  G06F111/08 ,  G06F111/10 ,  G06F113/08

Abstract: Techniques for simulating fluid flow on a computer that involve a stable entropy solver are described. The techniques include simulating activity of a fluid across a mesh, the activity of the fluid being simulated so as to model movement of particles across the mesh, storing, in a computer accessible memory, a set of state vectors for each mesh location in the mesh, each of the state vectors comprising a plurality of entries that correspond to particular momentum states of possible momentum states at a corresponding mesh location, simulating a time evolution of entropy of the flow by collecting incoming set of distributions from neighboring mesh locations for the collision operation, calculating by the computer scalar values in each location, determining outgoing distributions as a product of the collision operation and addition of a heat source, and modifying the flow by the computer performing for a time interval, an advection of the particles to subsequent mesh locations.

公开(公告)号：US20240419874A1

公开(公告)日：2024-12-19

申请号：US18702840

申请日：2023-04-28

Applicant: NANJING UNIVERSITY OF AERONAUTICS AND ASTRONAUTICS

Inventor： Zhiyuan HU ,  Yongjie SHI ,  Guohua XU ,  Yang LIU ,  Jiahao ZHU

IPC: G06F30/28 ,  G06F111/10 ,  G06F113/08 ,  G06T1/20

Abstract: A graphics processing unit (GPU)-based numerical simulation system and method for a helicopter flow field (FF). The GPU-based system includes a central processing unit (CPU) and a GPU. The CPU is configured to initialize a moving overset grid according to a preset configuration file and the mesh files of a to-be-simulated helicopter; determine face batch information according to mesh blocks in the moving overset grid; determine an overset interpolation relationship between the mesh blocks and an interpolation mapping index according to the mesh files at a current simulation moment; and perform FF information exchanging between the mesh blocks according to the overset interpolation relationship, the interpolation mapping index, and FF information of the mesh blocks, to obtain to-be-simulated helicopter FF information. The GPU computes the FF information of the mesh blocks in the motion nested mesh according to surface batch information by using a computational fluid dynamics (CFD) method.

公开(公告)号：US12146395B2

公开(公告)日：2024-11-19

申请号：US17595601

申请日：2019-05-28

Applicant: Schlumberger Technology Corporation

Inventor： Shingo Watanabe ,  Frode Bratvedt ,  Matthew Worthington ,  Trevor Graham Tonkin

IPC: E21B43/16 ,  G06F30/28 ,  G06F113/08

Abstract: Using a reservoir simulator, a reservoir model state is obtained. The reservoir model state is used to trace streamlines to obtain streamline trajectories and detect fluid fronts along the streamlines. Using the streamline trajectories, the streamlines are connected to wells. The streamlines are grouped for multiple granularity levels, into groups to obtain a grouping hierarchy. Through the granularity levels of the grouping hierarchy, fluid front time of flights are determined for the groups, and target flowrates assigned to completion devices based on the fluid front time of flights to obtain target flow rates. A completion design is presented that incorporates the target flowrates.

公开(公告)号：US12118279B2

公开(公告)日：2024-10-15

申请号：US16274403

申请日：2019-02-13

Applicant: Dassault Systemes Americas Corp.

Inventor： Pradeep Gopalakrishnan ,  Raoyang Zhang ,  Hudong Chen

IPC: G06F30/25 ,  G06F17/11 ,  G06F30/23 ,  G06F30/28 ,  G06F30/367 ,  G06F111/08 ,  G06F111/10 ,  G06F113/08

CPC classification number: G06F30/25 ,  G06F17/11 ,  G06F30/23 ,  G06F30/28 ,  G06F30/367 ,  G06F2111/08 ,  G06F2111/10 ,  G06F2113/08

Abstract: Techniques for simulating fluid flow on a computer that involve a stable entropy solver are described. The techniques include simulating activity of a fluid across a mesh, the activity of the fluid being simulated so as to model movement of particles across the mesh, storing, in a computer accessible memory, a set of state vectors for each mesh location in the mesh, each of the state vectors comprising a plurality of entries that correspond to particular momentum states of possible momentum states at a corresponding mesh location, simulating a time evolution of entropy of the flow by collecting incoming set of distributions from neighboring mesh locations for the collision operation, calculating by the computer scalar values in each location, determining outgoing distributions as a product of the collision operation and addition of a heat source, and modifying the flow by the computer performing for a time interval, an advection of the particles to subsequent mesh locations.

公开(公告)号：US12117582B2

公开(公告)日：2024-10-15

申请号：US17011254

申请日：2020-09-03

Applicant: ExxonMobil Technology and Engineering Company

Inventor： Chandrasekhar Annavarapu Srinivas ,  Dakshina M. Valiveti ,  Vadim Dyadechko

IPC: G01V20/00 ,  G06F30/23 ,  G06F30/28 ,  G06F113/08

CPC classification number: G01V20/00 ,  G06F30/23 ,  G06F30/28 ,  G06F2113/08

Abstract: A method for generating a three-dimensional geomechanical model of a subsurface volume is provided. The geomechanical model may be used to predict changes in geomechanical stress in the grid (such as a three-dimensional unstructured grid), which may be caused by extraction from or injection into the reservoir. The geomechanical model may be generated by solving, in combination, the finite element method at the vertices of a respective cell in the grid for momentum balance and the finite volume method at the center of the respective cell for mass balance. In this way, one or both of rock displacement or pore flow may be solved using the geomechanical model.

公开(公告)号：US12078060B2

公开(公告)日：2024-09-03

申请号：US17030020

申请日：2020-09-23

Applicant: HALLIBURTON ENERGY SERVICES, INC.

Inventor： William Owen Alexander Ruhle ,  Ronald Glen Dusterhoft ,  Ajish Potty ,  Joshua Lane Camp

IPC: G06F30/20 ,  E21B43/26 ,  E21B43/267 ,  E21B47/06 ,  E21B47/107 ,  E21B49/00 ,  E21B49/08 ,  G01V1/22 ,  G01V1/40 ,  G01V20/00 ,  E21B47/07 ,  G06F113/08

CPC classification number: E21B49/005 ,  E21B43/26 ,  E21B43/2607 ,  E21B43/267 ,  E21B47/06 ,  E21B47/107 ,  E21B49/00 ,  E21B49/0875 ,  G01V1/226 ,  G01V1/40 ,  G01V20/00 ,  G06F30/20 ,  E21B47/07 ,  E21B2200/20 ,  G06F2113/08

Abstract: Aspects of the subject technology relate to systems and methods for controlling a hydraulic fracturing job. Systems and methods are provided for receiving diagnostics data of a hydraulic fracturing completion of a wellbore, accessing a fracture formation model that models formation characteristics of fractures formed through the wellbore into a formation surrounding the wellbore during the hydraulic fracture completion with respect to surface variables of the hydraulic fracturing completion, selecting one or more subsurface objective functions from a plurality of subsurface objective functions for changing one or more of the formation characteristics of the fractures, and applying the fracture formation model based on the diagnostics data to determine values of the surface variables for controlling the formation characteristics of the fractures to converge on the one or more subsurface objective functions.

公开(公告)号：US12061980B2

公开(公告)日：2024-08-13

申请号：US16642452

申请日：2017-12-26

Applicant: Landmark Graphics Corporation

Inventor： Andrey Filippov ,  Jianxin Lu ,  Avinash Wesley ,  Keshava P. Rangarajan ,  Srinath Madasu

IPC: G06N3/08 ,  G06F30/23 ,  G06F30/27 ,  G06F30/28 ,  G06F113/08 ,  G06T17/20

CPC classification number: G06N3/08 ,  G06F30/23 ,  G06F30/27 ,  G06F30/28 ,  G06T17/20 ,  G06F2113/08

Abstract: System and methods for training neural network models for real-time flow simulations are provided. Input data is acquired. The input data includes values for a plurality of input parameters associated with a multiphase fluid flow. The multiphase fluid flow is simulated using a complex fluid dynamics (CFD) model, based on the acquired input data. The CFD model represents a three-dimensional (3D) domain for the simulation. An area of interest is selected within the 3D domain represented by the CFD model. A two-dimensional (2D) mesh of the selected area of interest is generated. The 2D mesh represents results of the simulation for the selected area of interest. A neural network is then trained based on the simulation results represented by the generated 2D mesh.

公开(公告)号：US20240202399A1

公开(公告)日：2024-06-20

申请号：US18555176

申请日：2021-12-28

Applicant: CANSEMI TECHNOLOGY INC.

Inventor： Ruijing HAN ,  Hui ZENG

IPC: G06F30/20 ,  G06F113/08 ,  G06F113/18 ,  H01L21/306

CPC classification number: G06F30/20 ,  H01L21/30604 ,  G06F2113/08 ,  G06F2113/18

Abstract: A method of modeling a wet etching process and a method of manufacturing a semiconductor device are disclosed. The modeling method includes: establishing partial differential equations of a reaction-diffusion system for chemical reactions involved in the wet etching process which is performed on a wafer surface using a mixed acid solution; obtaining formulas for the chemical reaction functions by applying the Brusselator model thereto; linearizing and expanding the formulas for the chemical reaction functions and thereby determining conditions for developing a chemical clock for the chemical reactions; calculating simulation parameters of the formulas for the chemical reaction functions; determining diffusion coefficients in the spatial diffusion terms, which allow formation of dome-shaped micro-cavities, thereby obtaining a mathematical model of the reaction-diffusion system for the chemical reactions involved in the wet etching process on the wafer surface. With the present invention, an optimal mixture ratio of the mixed acid solution can be rapidly and accurately determined, which enables formation of morphologically optimal dome-shaped micro-cavities on the wafer surface as a result of the etching process and hence improved performance of the semiconductor device being fabricated.