It is well-established that internal pressure can be modelled using the geometric details of the opening and the external pressures near the opening as input. The objective of this study is to determine whether the unique details of tornadic wind fields alter the dynamics of internal pressures, and whether these internal pressures can also be simulated using external pressures at a dominant opening. This is done using measurements from a relatively large-scale tornado simulator for a flow field with multiple sub-vortices, which is expected to be a worst-case scenario for the internal pressure model. These results are then compared to similar studies from atmospheric boundary layer (ABL) wind fields. It is found that the internal pressure model is able to reasonably simulate measured internal pressures in tornadic winds, although not quite as well as in ABL winds. The modelled internal pressure coefficients are mostly within a difference of 0.1 of the measured internal pressure coefficients, which is close to the measurement uncertainty bounds. The reduced accuracy for tornadoes appears to be due to differences in the wind fields in the vortex core of the tornado, particularly the presence of sub-vortices and the vertical component of the wind.

公认的是，可以使用开口的几何细节和开口附近的外部压力作为输入来对内部压力进行建模。这项研究的目的是确定湍流风场的独特细节是否会改变内部压力的动态，以及是否也可以使用主要开口处的外部压力来模拟这些内部压力。这是使用来自较大规模龙卷风模拟器的测量结果完成的，该测量结果具有多个子涡流，对于内部压力模型，这预计将是最坏的情况。然后将这些结果与来自大气边界层（ABL）风场的类似研究进行比较。发现内部压力模型能够合理模拟在暴风中测得的内部压力，尽管不如ABL风那么好 建模的内部压力系数大多在所测量的内部压力系数的0.1之内，这接近于测量不确定性范围。龙卷风的准确性降低似乎是由于龙卷风旋涡核心中的风场不同，特别是子旋涡和风的垂直分量的存在。