Physical Simulation of Hydraulic Characteristics of Channels with Spatial Lattice Structures

Abstract

The purpose of the article is to experimentally determine the hydraulic characteristics and generalized empirical dependence of viscous and inertial drag coefficients for channels with spatial lattice structures. The relevance of the work is due to the need to develop efficient cooling and thermal stabilization systems for heat-loaded elements of power and electronic equipment that operate in conditions of high heat flows and require optimal hydraulic characteristics to ensure reliable operation. The results of physical modeling aimed at determining the hydraulic characteristics of channels with spatial lattice structures in the ranges of porosity 0.143--0.749 and Reynolds number 2700--150 000 are presented. Experimental data have shown that in the studied channels, with increasing porosity, the pressure loss of the working medium increases, which must be taken into account when designing such systems. Based on the empirical dependences obtained, the values of the viscous and inertial drag coefficients are determined, which are key parameters for modeling and predicting fluid flows in systems with porous structures. The results of the study allowed us to establish a range of changes in hydraulic characteristics with varying degrees of porosity. This will allow developers to create more efficient and reliable cooling and thermal stabilization systems, ensuring an optimal combination of hydraulic and heat exchange characteristics. Such systems are key for energy devices and electronic equipment, where high thermal loads and limited spaces require highly efficient heat removal solutions

Please cite this article in English as:

Lopatin A.A., Gabdullina R.A., Sayetgarayev A.A., et al. Physical simulation of hydraulic characteristics of channels with spatial lattice structures. Herald of the Bauman Moscow State Technical University, Series Natural Sciences, 2025, no. 4 (121), pp. 96--112 (in Russ.). EDN: RPLILT

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