Patent application number | Description | Published |
20130144577 | MEDIUM RECORDING SIMULATION PROGRAM, SIMULATION METHOD AND SIMULATION APPARATUS - A computer is caused to calculate an interface of a fluid model that expresses the fluid as a collection of particles based on input boundary condition and initial condition, to calculate surface energy of the calculated interface, to calculate a surface tension of the interface based on the calculated surface energy, and to output a state of the fluid for each specified time interval based on the calculated surface tension, so that simulation results are prevented from exhibiting non-physical behaviors. | 06-06-2013 |
20130338977 | SIMULATION DEVICE AND SIMULATION METHOD - A memory stores a calculation formula including a disturbance term added to a position, a velocity, an acceleration, a pressure, or a density of each particle at a current time. A processor determines the disturbance term of each particle, determines the position, the velocity, and the density (position and the like) at the current time by using a position and the like at an initial time as the position and the like at the preceding time, and by applying the disturbance term to the calculation formula, and sequentially determines a position and the like at each time subsequent to the initial time by repeating a process for determining the disturbance term and the position and the like at the current time with the use of the determined position and the like of as the position and the like at the preceding time. | 12-19-2013 |
20140195212 | MOTION ANALYSIS APPARATUS AND MOTION ANALYSIS METHOD - A motion analysis apparatus includes a storage section configured to store data representing a plurality of particles representing an object; a partitioning process section configured to partition a particle of interest among the plurality of particles and to store data representing a plurality of partitioned particles obtained by partitioning the particle of interest into the storage section if a predetermined uneven distribution relationship exists between the particle of interest and other particles existing within a predetermined range having the particle of interest at a center of the predetermined range; and a motion analysis section configured to analyze the motion of the object depending on a type of the object using the data representing the plurality of partitioned particles stored in the memory storage section. | 07-10-2014 |
20140200833 | OBJECT MOTION ANALYSIS APPARATUS, OBJECT MOTION ANALYSIS METHOD, AND STORAGE MEDIUM - An object motion analysis apparatus includes a processor configured to generate a connection element connecting multiple first particles included in a first object based on physical quantity data of the first particles, refer to physical quantity data of a second particle included in a second object, calculate a shortest distance between the second particle and the generated connection element, calculate a repulsive force between the first object and the second particle based on the calculated shortest distance, and analyze motion of the first object and the second object based on the calculated repulsive force. | 07-17-2014 |
20140214377 | SIMULATION METHOD AND SIMULATION DEVICE - A state of a particle which was in a liquid state at a first time is calculated at a second time after the first time when a continuum including a liquid and a solid is represented by the plurality of particles. It is determined whether the particle has become a first solid particle at the second time. The first solid particle and all particles belonging to a solid which includes a second solid particle arranged in a predetermined range from the first solid particle are defined as particles belonging to the same solid when it is determined that the particle which was in the liquid state at the first time has become the first solid particle at the second time. The state of each of the particles belonging to the same solid is calculated using an equation of motion of a rigid body. | 07-31-2014 |
20140214378 | SIMULATION METHOD AND SIMULATION DEVICE - A simulation device includes a deformation unit and a calculation unit. The deformation unit deforms a spherical potential region of each of a plurality of particles when a deformable continuum is represented by the plurality of particles into an ellipsoidal potential region based on the amount of deformation of each of the plurality of particles. The calculation unit calculates reaction force between the particles based on the potential region of each of the plurality of particles deformed into the ellipsoidal shape. | 07-31-2014 |
20140316596 | INFORMATION PROCESSING METHOD AND INFORMATION PROCESSING SYSTEM - An information processing method includes: calculating, by a computer, a time differential of internal energy that corresponds to a coefficient and is based on radiative cooling, the coefficient corresponding to a degree of exposure of each particle in a collection of particles to a surface of a continuum represented by the collection of the particles; and calculating, by the computer, the internal energy after a unit time based on the time differential of the internal energy. | 10-23-2014 |
20140365145 | COMPUTER-READABLE RECORDING MEDIUM, SIMULATION METHOD, AND SIMULATION DEVICE - A simulation program, simulation method, or simulation device simulates the temporal shape change in a fluid. The simulation program, simulation method, and simulation device are characterized in that with respect to a fluid model representing the fluid as a collection of particles, a surface tension of an interface against another phase which is different from the phase of the fluid is calculated using a function to calculate a surface energy of the interface, and the shape change in the fluid is calculated on the basis of the calculated surface tension. | 12-11-2014 |
20140365185 | NUMERICAL CALCULATION METHOD AND APPARATUS - A method realizes numerical high-precision calculation of an interflow phenomenon of liquids having different reference densities. Specifically, the method includes: calculating a first and second physical quantities by using, in a Riemann invariant, a ratio of a first or second density of a first or second particle to a first or second reference density, instead of the first or second density; calculating a first time-space intermediate value for the first and second physical quantities between the first and second particles, by using the first and second physical quantities; calculating time-space intermediate values for pressure and velocity between the first and second particles, by using the first time-space intermediate value. Then, a velocity of the first particle updated by using the second time-space intermediate value for pressure, and the first density of the first particle is updated based on the time-space intermediate value for velocity. | 12-11-2014 |