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US 10,242,131 B2Granted
Numerical simulation system and numerical simulation method for atmospheric flow by computational fluid dynamics
AssigneeKorea Institute of Energy Research
InventorHyun-Goo Kim
Life of this patent
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Abstract
Provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics. In detail, provided are a numerical simulation system and method for an atmospheric wind flow by computational fluid dynamics capable of more rapidly and efficiently performing a fluid analysis and easily making a wind power resource map by setting an analysis result of a wind direction depending on the same analysis area as an initial condition (second initial condition in the present invention) of an analysis of another wind direction.
Claims10
A numerical simulation computing system for an atmospheric wind flow by computational fluid dynamics, comprising:
- a processor executing a plurality of units;
- a numerical analyzing unit analyzing meteorological variables of an internal area using meteorological variables of a boundary surface of an analysis area as boundary conditions;
- an input unit inputting the boundary conditions and an initial condition for a numerical analysis of the numerical analyzing unit and setting analysis sections for a same meteorological variable;
- and
- a map forming unit mapping a numerical analysis result by the numerical analyzing unit in connection with geographical information and generating a wind power resource map indicating candidate locations in which wind power generators are to be installed, the wind power resource map including a space distribution of the atmospheric wind flow,
- wherein the input unit includes:
- a first input unit inputting the boundary conditions and a first initial condition for the analysis area;
- and a second input unit inputting a second initial condition in which analysis information on a specific boundary condition is reflected in order to analyze different boundary conditions for the analysis area, so as to perform different analyses in the same meteorological variable for the analysis area,
- wherein the boundary conditions are two adjacent wind directions among an easterly wind, a westerly wind, a southerly wind, and a northerly wind for the analysis area;
- a wind speed;
- and an atmosphere stability,
- wherein the first initial condition is set to 0 or a same value as one or more of the boundary conditions, and
- wherein the second initial condition is input by reflecting analysis information with respect to wind directions forming an angle of 180 degrees with respect to the respective two adjacent wind directions in which the first initial condition is input or wind directions corresponding to middle directions of the two adjacent wind directions in which the first initial condition is input, where a first data set of wind directions is generated, and a second data set of wind directions, reduced from the first data set, is analyzed to generate the wind power resource map.
10 more elements
A numerical simulation method for an atmospheric wind flow by computational fluid dynamics using a numerical simulation computing system, the numerical simulation method comprising:
- setting lattices for an analysis area by an analysis area lattice data generating unit using terrain data, where the lattices divide a space in which wind flows;
- analyzing an atmospheric wind flow for each of wind directions, wind speeds, and atmosphere stabilities set for the analysis area;
- and
- mapping each analysis result in connection with geographical information for the analysis area and generating a wind power resource map indicating candidate locations in which wind power generators are to be installed, the wind power resource map including a space distribution of the atmospheric wind flow,
- wherein analyzing the atmospheric wind flow includes:
- setting wind direction sections, wind speed sections, and atmosphere stability sections, each of which are meteorological variables on which analyses are performed for the analysis area;
- inputting a boundary condition and a first initial condition of a specific meteorological variable for the same analysis area in the numerical analyzing unit, by a first input unit of an input unit;
- performing an analysis of the specific meteorological variable using the boundary condition and the first initial condition, by the numerical analyzing unit;
- inputting a second initial condition for analyzing another meteorological variable for the same analysis area in the numerical analyzing unit, by a second input unit of the input unit;
- and
- performing an analysis of the specific meteorological variable using the second initial condition, by the numerical analyzing unit,
- the inputting of the second initial condition and the performing of the analysis of the specific meteorological variable using the second initial condition being repeatedly performed in order to analyze each section of all meteorological variables set for the analysis area,
- wherein the boundary condition includes two adjacent wind directions among an easterly wind, a westerly wind, a southerly wind, and a northerly wind for the analysis area;
- a wind speed;
- and an atmosphere stability,
- wherein the first initial condition is set to 0 or a same value as the boundary condition, and
- wherein the second initial condition is input by reflecting analysis information with respect to wind directions forming an angle of 180 degrees with respect to respective specific wind directions in which the first initial condition is input or wind directions corresponding to middle directions of the two adjacent wind directions in which the first initial condition is input.
14 more elements
Dependencies are inferred from the claim text.