DSGF（离散系统格林函数）解算器的MATLAB代码.zip

MATLAB DSGF code Last Update: February 20, 2024 The DSGF (discrete system Green's function) is a numerical framework to simulate radiative heat transfer between micro/nanostructured objects. The DSGF method is based on fluctuational electrodynamics and is applicable to near-field and far-field problems. The DSGF method and solver were developed at the University of Utah. 1. SYSTEM REQUIREMENT A MATLAB license from MathWorks is required. The DSGF code has been tested on MATLAB version R2021a. 2. INSTALLATION No installation is required. Download the DSGF_matlab source code. 3. DEMO AND INSTRUCTIONS FOR USE The only file to be modified is: DSGF_user_inputs. Step 1: Write a description of your simulation. The description will be available in the results table. Step 2: Select the discretization_type between a ‘sample’ or a ‘user-defined’ simulation. ‘Sample’ is used for simulations with spheres, dipoles, and cubes. ‘User-defined’ is used for simulations with membranes. Step 3: Define discretization for your simulation. Different parameters need to be modified depending on your selection in Step 2. For ‘sample’, modify: discretization, L_char, and d. For ‘user-defined’, modify: discretization and delta_V with the names of the discretization files. These files are located in Library/Discretizations/User_defined. Step 4: Select material. Step 5: Define dielectric function of the background reference medium. Step 6: Define the frequency discretization. The option uniform_lambda is defined in terms of wavelength [m] while the options uniform_omega and non_uniform_omega are defined in angular frequency [rad/s]. Step 7: Define temperatures for each object. These temperatures are used for power dissipation calculations. Step 8: Define temperatures for conductance calculations. Step 9: Select outputs of the simulation. Step 10: In the MATLAB editor, press the Run button. The results are stored in a folder named with the time the simulation was launched.