Nasal saline irrigation is frequently utilised in rhinosinusitis management, and after nasal and sinus surgery. Nasal saline irrigation improves mucociliary transport and assists inflammatory mediator and post-surgical debris removal. The aim of this study was to assess the influence different head positions, irrigation inflow nostril, and the nasal cycle have on Neti pot nasal saline volume filling within the nasal passages and maxillary sinuses. Computational fluid dynamics modelling using anatomically correct nasal geometry found only minor difference in nasal cavity volume filling with inflow from either side of the nose however both head position and inflow direction were both found to have a major influence on maxillary sinus volume filling. Computational modelling flow velocity results at the nasopharynx were validated using particle image velocimetry. It was also found that directing irrigation inflow into the patent side of the nose while in the head-back position achieved the highest volume filling of both maxillary sinuses.

鼻腔盐水冲洗经常用于鼻窦炎治​​疗，以及鼻腔和鼻窦手术后。鼻腔盐水冲洗可改善黏液纤毛运输并有助于炎症介质和手术后碎片的清除。本研究的目的是评估不同头部位置、冲洗流入鼻孔和鼻周期对鼻道和上颌窦内洗鼻壶鼻腔盐水体积填充的影响。使用解剖学上正确的鼻几何形状的计算流体动力学建模发现鼻腔容积填充与从鼻子两侧流入的差异很小，但是发现头部位置和流入方向都对上颌窦容积填充有重大影响。使用粒子图像测速法验证了鼻咽部的计算建模流速结果。还发现，在头向后的位置将冲洗液引导到鼻子的开放侧可以获得最大的两个上颌窦的填充量。