CFD structure optimization method for large plate heat sink

Abstract

The invention discloses a large -scale hot -sinking CFD structure optimization method. This method uses the Fluent system to divide the three -dimensional modeling and grid of the swelling board unit, and then set the boundary conditions.The heat situation, through the one -dimensional simulation calculation of the thermal sink pipe network system and the three -dimensional CFD simulation calculation, obtains the flow field and temperature field of liquid nitrogen in the swelling plate, and determines the best pipeline path in the thermal sinking pipe network.The ratio is achieved, and the temperature uniformity and average temperature meet the requirements of all the swelling plates in the thermal sinking pipe network can solve the overall design and simulation computing problem of large -scale heat sinking.

Description

technical field [0001] The invention belongs to the technical field of space environment simulation, and in particular relates to a method of simulating a large-scale plate heat sink by using a CFD system, so as to obtain a heat sink pipe network structure that meets the temperature uniformity requirements of the heat sink. Background technique [0002] The heat sink is an important part of the space environment simulation equipment. Its function is to simulate the cold and dark environment of space, so that the spacecraft can conduct thermal vacuum and thermal balance tests on the ground, so as to verify the correctness and reliability of the spacecraft design. According to the size of the space environment simulation equipment, heat sinks are also divided into three types: large heat sinks, medium heat sinks and small heat sinks. For each type of heat sink, the design method is also different. Before the heat test starts, a certain flow rate and pressure of the cooling me...

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Problems solved by technology

[0005] It is very complicated to simulate the flow and heat transfer activities in a large-scale plate heat sink. If the 3D modeling and simulation calculation of the large-scale plate heat sink is performed as a whole, a large number of calculation steps will be generated, and the requirements for the computer are very high. At the same time, the The calculation time is also very long, and it is not operable

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