高层竖井，包括楼梯井和电梯井，是现代建筑的重要组成部分。然而，在烟囱效应的驱动下，烟气经常通过竖井在建筑物中传播，这成为高层建筑防火的一个主要挑战。因此，对高层建筑竖井内的烟气运动进行研究非常重要，基于全尺寸建筑亚尺度模型实验的比例建模是一项重要技术。弗劳德建模法可能是设计潜艇最常用的方法- 规模化实验。然而，以前的研究发现，弗劳德建模不充分考虑热传递，从而提供不准确的温度预测，特别是当存在显着的传热之间的烟雾和周围的墙壁。本文根据高层竖井自然通风系统的传热和机械能守恒定律，提出了一种基于一组新的无量纲数的新的比例建模方法。要验证新的建模方法，请使用sub- 采用弗劳德和新的建模方法，在两个不同尺寸和材料的轴上进行了缩尺实验。比较了两种方法的温度分布、相对中性面水平和质量流量的结果。结果发现，新的建模方法提供了更准确的结果。引文:2017年冬季会议，内华达州拉斯维加斯，会议论文

The high-rise shaft, including the stairwell and elevator shaft, is an essential part of modern buildings. However, driven by stack effect, smoke often spreads across a building through shafts, which become a major challenge for high-rise fire protections. It is therefore important to conduct research on the smoke movement inside high-rise shafts, for which scale modeling based on experiments in sub-scale models of full-size buildings is an important technique. Froude modeling method is probably the most common approach to designing sub-scaled experiments. However previous studies found that Froude modeling does not consider heat transfer adequately and thus provide inaccurate temperature predictions, especially for when there exists significant heat transfer between smoke and surrounding walls. In this paper, a new scale modeling method is developed based on a group of new dimensionless numbers derived from the conservations of both heat transfer and mechanical energy for natural venting systems of high-rise shafts. To verify the new modeling method, sub-scaled experiments were conducted in two shafts with different sizes and materials using both Froude and the new modeling methods. The results of temperature profiles, relative neutral plane levels and mass flow rates, are compared for both methods. It was found that the new modeling method provides more accurate results.