Numerical Simulation of the Laminar Forced Convective Heat Transfer between Two Concentric Cylinders

Sârbu, Ioan; Iosif, Anton

doi:10.3390/computation5020025

Cited by 3 publications

(2 citation statements)

References 40 publications

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“…The composition of the envelope wall can be seen in Figure 2 and Table 1. Results related to similar issues have been published in recent years in [30][31][32][33].…”

Section: Nosupporting

confidence: 61%

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The Influence of the Initial Condition in the Transient Thermal Field Simulation Inside a Wall

Zozulák¹,

Vertaľ²,

Katunský³

2019

Buildings

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The envelope structures of buildings are exposed to heat-humidity conditions. The heat and humidity flow through these structures depends on the boundary conditions of the indoor and outdoor environments. This paper shows different initial conditions for the determination of temperature spread. The aim is to bring certain results of temperature calculated considering the initial conditions. When temperature changes, heat flow also rapidly changes. In certain specific cases, it is necessary to consider the initial conditions of temperature—for example; when transient energy simulations of real buildings are carried out. The reasons as to why it is necessary to consider the initial conditions, are shown in the examples of one-layer assemblies. The test walls exposed to the transient hygrothermal conditions are placed in the outdoor test cell. The cell has a stable temperature and relative humidity, and outdoor weather conditions change. The measured data on these walls and the calculated values of the temperatures in the wall structure, according to the different initial conditions, are compared. The average difference of the mean by the simulation and the measured values is significant. For a simulation time of about five days, the initial condition for calculating the temperature in the center of the masonry is necessary.

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“…The composition of the envelope wall can be seen in Figure 2 and Table 1. Results related to similar issues have been published in recent years in [30][31][32][33].…”

Section: Nosupporting

confidence: 61%

“…The composition of the envelope wall can be seen in Figure 2 and Table 1. Results related to similar issues have been published in recent years in [30][31][32][33]. The experiment was conducted on the (AAC) autoclaved aerated concrete and envelope structure from ceramic brick.…”

Section: Nomentioning

confidence: 69%