فهرست مطالب kavan javanroodi

Characteristics of efficient roof shape is a part of configuration of efficient architecture which seems to be an ideal in contemporary architecture especially in contemporary architecture of developing countries such as Iran. This study is to investigate two roof shapes in view of air flow and indoor-temperature to find efficient roofs shapes for residential buildings in Tehran. Computational modeling and simulation methods are applied to reach this purpose. A mathematical modeling along with CFD simulation by Fluent Software is used to determine variables. For simulating velocity and pressure path lines κ-ε standard model and finite difference discretization technique is applied. Results show that a sample room with dome roof is about eight Kelvin degree cooler than the same room with flat roof. Also velocity and pressure simulations indicate that roof geometry has a major impact on reducing heat transfer of room and roof temperature. Finally the study suggests some methods for using results in an operational situation.

This article is an attempt for evaluation of climatic aspects of rural traditions and new houses in Kahnamo (Osku-Tabriz). The vernacular architecture of Kahnamo has been grown up through times and in terms of using climatic and environmental aspects. Vernacular materials have been responsible for their habitant's demands. Thus, knowing these experiments despite contribution in sustainable development can be used in re-construction of dwellings and architectural spaces in the region. This article is a resaerch with survey method. For selecting the sample group imporbable sampling method was used. In this study 15 types of traditional and new dwellings of rural Kahnamo have been choosen, and then their response to climate have been evaluated in terms of using Mahoony indicators, climatic aspects and bio-climatical charts. Findings of this article indicate that vernacular architecture versus new houses has been so successful, due to optimized use of climatic aspects and natural sources. Thus their expriments and construction techniquces can be used in new cliamatical designs.